{"id":5205,"date":"2017-07-15T09:07:37","date_gmt":"2017-07-15T06:07:37","guid":{"rendered":"http:\/\/viewonphysics.gr\/?p=5205"},"modified":"2017-08-10T14:19:24","modified_gmt":"2017-08-10T11:19:24","slug":"%ce%b4%cf%85%ce%bd%ce%b1%ce%bc%ce%b9%ce%ba%ce%ae-%cf%83%cf%84%ce%bf-%ce%b5%cf%80%ce%af%cf%80%ce%b5%ce%b4%ce%bf-online-%cf%83%cf%89%cf%83%cf%84%cf%8c-%ce%bb%ce%ac%ce%b8%ce%bf%cf%82","status":"publish","type":"post","link":"https:\/\/viewonphysics.gr\/?p=5205","title":{"rendered":"\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03c3\u03c4\u03bf \u0395\u03c0\u03af\u03c0\u03b5\u03b4\u03bf Online: \u03a3\u03c9\u03c3\u03c4\u03cc &#8211; \u039b\u03ac\u03b8\u03bf\u03c2"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam30\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-30\"><p>\u039f\u03b9 20 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03a3\u03c9\u03c3\u03c4\u03bf\u03cd - \u039b\u03ac\u03b8\u03bf\u03c5\u03c2 (True-False) \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b7 \u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03c3\u03c4\u03bf \u0395\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc 1 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b7 \u03ba\u03ac\u03b8\u03b5 \u03bc\u03af\u03b1.<\/p>\n<p>\u038c\u03c4\u03b1\u03bd \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03ac\u03c4\u03b1 \u03c4\u03bf \"\u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1\" \u03ba\u03b1\u03b9 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b1 \u03b8\u03b1 \u03b4\u03b5\u03b9\u03c2 \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03af\u03b4\u03bf\u03c3\u03ae \u03c3\u03bf\u03c5.<\/p>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-30\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-323'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>\u038c\u03c4\u03b1\u03bd \u03b4\u03cd\u03bf \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03bf\u03cd\u03bd \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2 \u03b1\u03c3\u03ba\u03b5\u03af \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03bc\u03b5 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 \u03bc\u03ac\u03b6\u03b1.<\/div><input type='hidden' name='question_id[]' id='qID_1' value='323' \/><input type='hidden' id='answerType323' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-323[]' id='answer-id-978' class='answer   answerof-323 ' value='978'   \/><label for='answer-id-978' id='answer-label-978' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-323[]' id='answer-id-979' class='answer   answerof-323 ' value='979'   \/><label for='answer-id-979' id='answer-label-979' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-315'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>\u0388\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03c4\u03b1\u03c5\u03c4\u03cc\u03c7\u03c1\u03bf\u03bd\u03b1 \u03bc\u03af\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03c3\u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03c5\u03c4\u03ae.<\/div><input type='hidden' name='question_id[]' id='qID_2' value='315' \/><input type='hidden' id='answerType315' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-315[]' id='answer-id-960' class='answer   answerof-315 ' value='960'   \/><label for='answer-id-960' id='answer-label-960' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-315[]' id='answer-id-961' class='answer   answerof-315 ' value='961'   \/><label for='answer-id-961' id='answer-label-961' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-316'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>\u0388\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03ad\u03c7\u03b5\u03b9 \u03b2\u03ac\u03c1\u03bf\u03c2 20\u039d \u03ad\u03bb\u03ba\u03b5\u03b9 \u03c4\u03bf\u03bd \u03c0\u03bb\u03b1\u03bd\u03ae\u03c4\u03b7 \u0393\u03b7 \u03bc\u03b5 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 20\u039d.<\/div><input type='hidden' name='question_id[]' id='qID_3' value='316' \/><input type='hidden' id='answerType316' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-316[]' id='answer-id-962' class='answer   answerof-316 ' value='962'   \/><label for='answer-id-962' id='answer-label-962' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-316[]' id='answer-id-963' class='answer   answerof-316 ' value='963'   \/><label for='answer-id-963' id='answer-label-963' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-317'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>\u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03b5\u03af \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1. \u039c\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2 W \u03c9\u03c2 \"\u03b4\u03c1\u03ac\u03c3\u03b7\" \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u039d \u03c4\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b5\u03c0\u03af \u03c4\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c9\u03c2 \"\u03b1\u03bd\u03c4\u03af\u03b4\u03c1\u03b1\u03c3\u03b7\"\u00a8\u03c3\u03c4\u03bf \u03b2\u03ac\u03c1\u03bf\u03c2.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5207\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5207\" class=\"size-medium wp-image-5207\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2016\/09\/\u03a3\u03c7\u03ae\u03bc\u03b1-1-300x234.jpg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 3\" width=\"300\" height=\"234\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2016\/09\/\u03a3\u03c7\u03ae\u03bc\u03b1-1-300x234.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2016\/09\/\u03a3\u03c7\u03ae\u03bc\u03b1-1.jpg 378w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-5207\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 3<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_4' value='317' \/><input type='hidden' id='answerType317' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-317[]' id='answer-id-964' class='answer   answerof-317 ' value='964'   \/><label for='answer-id-964' id='answer-label-964' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-317[]' id='answer-id-965' class='answer   answerof-317 ' value='965'   \/><label for='answer-id-965' id='answer-label-965' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-318'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>\u039c\u03ad\u03c3\u03c9 \u03b5\u03bd\u03cc\u03c2 \u03bd\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ac \u03b4\u03b5\u03bc\u03ad\u03bd\u03bf \u03c3\u03c4\u03bf\u03bd \u03ba\u03b1\u03c4\u03b1\u03ba\u03cc\u03c1\u03c5\u03c6\u03bf \u03c4\u03bf\u03af\u03c7\u03bf. \u0391\u03c3\u03ba\u03bf\u03cd\u03bc\u03b5 \u03c3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F \u03bc\u03b5 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b1\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ac. \u03a4\u03bf \u03c3\u03c7\u03ae\u03bc\u03b1 (\u03b1) \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b4\u03b9\u03ac\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03b5\u03bb\u03b5\u03cd\u03b8\u03b5\u03c1\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (\u0394\u0395\u03a3) \u03c4\u03bf\u03c5 \u03bd\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2. <em>(\u0393\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b5\u03b9\u03c2 \u03c4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u0394\u0395\u03a3 \u03c0\u03ac\u03c4\u03b1 <a href=\"http:\/\/viewonphysics.gr\/?p=4902\">\u03b5\u03b4\u03ce<\/a>)<\/em><div id=\"attachment_5209\" style=\"width: 409px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5209\" class=\" wp-image-5209\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2016\/09\/\u03a3\u03c9\u03c3\u03c4\u03cc-\u039b\u03ac\u03b8\u03bf\u03c2-2-300x143.jpg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 4\" width=\"399\" height=\"190\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2016\/09\/\u03a3\u03c9\u03c3\u03c4\u03cc-\u039b\u03ac\u03b8\u03bf\u03c2-2-300x143.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2016\/09\/\u03a3\u03c9\u03c3\u03c4\u03cc-\u039b\u03ac\u03b8\u03bf\u03c2-2.jpg 573w\" sizes=\"auto, (max-width: 399px) 100vw, 399px\" \/><p id=\"caption-attachment-5209\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 4<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_5' value='318' \/><input type='hidden' id='answerType318' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-318[]' id='answer-id-966' class='answer   answerof-318 ' value='966'   \/><label for='answer-id-966' id='answer-label-966' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-318[]' id='answer-id-967' class='answer   answerof-318 ' value='967'   \/><label for='answer-id-967' id='answer-label-967' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-324'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>\u03a3\u03c4\u03bf \u03c3\u03c7. (\u03b1) \u03bc\u03af\u03b1 \u03bc\u03b9\u03ba\u03c1\u03ae \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b2\u03ac\u03c1\u03bf\u03c5\u03c2 30\u039d \u03ba\u03c1\u03ad\u03bc\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03ba\u03cc\u03c1\u03c5\u03c6\u03bf \u03bd\u03ae\u03bc\u03b1 \u03c4\u03bf\u03c5 \u03bf\u03c0\u03bf\u03af\u03bf\u03c5 \u03b7 \u03ac\u03bb\u03bb\u03b7 \u03ac\u03ba\u03c1\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03b5\u03bc\u03ad\u03bd\u03b7. \u03a3\u03c4\u03b1 \u03ac\u03ba\u03c1\u03b1 \u03c4\u03bf\u03c5 \u03bd\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03c6\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c3\u03c7. (\u03b2).<br \/>\r\n<br \/>\r\n<div id=\"attachment_5731\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5731\" class=\"size-medium wp-image-5731\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-4-300x267.jpeg\" alt=\"\" width=\"300\" height=\"267\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-4-300x267.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-4-768x684.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-4-1024x912.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-4.jpeg 1095w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-5731\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 6<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_6' value='324' \/><input type='hidden' id='answerType324' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-324[]' id='answer-id-980' class='answer   answerof-324 ' value='980'   \/><label for='answer-id-980' id='answer-label-980' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-324[]' id='answer-id-981' class='answer   answerof-324 ' value='981'   \/><label for='answer-id-981' id='answer-label-981' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-325'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>\u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf, \u03c3\u03c7. (\u03b1), \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b4\u03b5\u03be\u03b9\u03ac. \u03a4\u03bf \u03c3\u03c7. (\u03b2) \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b7\u03bd \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5728\" style=\"width: 351px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5728\" class=\" wp-image-5728\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-1-300x94.jpeg\" alt=\"\" width=\"341\" height=\"107\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-1-300x94.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-1-768x241.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-1-1024x321.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-1.jpeg 1355w\" sizes=\"auto, (max-width: 341px) 100vw, 341px\" \/><p id=\"caption-attachment-5728\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 7<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_7' value='325' \/><input type='hidden' id='answerType325' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-325[]' id='answer-id-982' class='answer   answerof-325 ' value='982'   \/><label for='answer-id-982' id='answer-label-982' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-325[]' id='answer-id-983' class='answer   answerof-325 ' value='983'   \/><label for='answer-id-983' id='answer-label-983' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-326'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>\u03a3\u03c4\u03b7 \u03bc\u03b9\u03ba\u03c1\u03ae \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03cd\u03bf \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd 100\u039d, \u03c0\u03bf\u03c5 \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03af\u03b6\u03bf\u03c5\u03bd \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5\u03c2 \u03b3\u03c9\u03bd\u03af\u03b1 120<sup>0<\/sup>. \u0397 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03b1\u03bc\u03ad\u03bd\u03b7 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 100\u039d.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5733\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5733\" class=\"size-medium wp-image-5733\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-6-300x194.jpeg\" alt=\"\" width=\"300\" height=\"194\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-6-300x194.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-6-768x497.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-6-280x180.jpeg 280w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-6.jpeg 965w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-5733\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 8<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 68px; left: 422px;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_8' value='326' \/><input type='hidden' id='answerType326' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-326[]' id='answer-id-984' class='answer   answerof-326 ' value='984'   \/><label for='answer-id-984' id='answer-label-984' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-326[]' id='answer-id-985' class='answer   answerof-326 ' value='985'   \/><label for='answer-id-985' id='answer-label-985' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-327'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>\u03a3\u03c4\u03b7 \u03bc\u03b9\u03ba\u03c1\u03ae \u03c3\u03c6\u03b1\u03af\u03c1\u03b1, \u03c0\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ac \u03ae\u03c4\u03b1\u03bd \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03b7, \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd 50\u039d, 30\u039d \u03ba\u03b1\u03b9 20\u039d, \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03cd\u03bd\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03c6\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1. \u0397 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b8\u03b1 \u03ba\u03b9\u03bd\u03b7\u03b8\u03b5\u03af \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b4\u03b5\u03be\u03b9\u03ac \u03ba\u03b1\u03b9 \u03b5\u03c0\u03af \u03c4\u03b7\u03c2 \u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03af\u03b6\u03b5\u03b9 \u03b3\u03c9\u03bd\u03af\u03b1 30<sup>0<\/sup> \u03bc\u03b5 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03c9\u03bd 50\u039d.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5727\" style=\"width: 405px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5727\" class=\" wp-image-5727\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-300x129.jpeg\" alt=\"\" width=\"395\" height=\"170\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-300x129.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-768x330.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-1024x440.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image.jpeg 1400w\" sizes=\"auto, (max-width: 395px) 100vw, 395px\" \/><p id=\"caption-attachment-5727\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 9<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_9' value='327' \/><input type='hidden' id='answerType327' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-327[]' id='answer-id-986' class='answer   answerof-327 ' value='986'   \/><label for='answer-id-986' id='answer-label-986' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-327[]' id='answer-id-987' class='answer   answerof-327 ' value='987'   \/><label for='answer-id-987' id='answer-label-987' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-328'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>\u039f\u03b9 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd 100\u039d \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b7 \u03bc\u03b9\u03ba\u03c1\u03ae \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03bf\u03cd\u03bd.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5734\" style=\"width: 345px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5734\" class=\" wp-image-5734\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-7-300x249.jpeg\" alt=\"\" width=\"335\" height=\"278\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-7-300x249.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-7-768x639.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-7-1024x852.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-7.jpeg 1087w\" sizes=\"auto, (max-width: 335px) 100vw, 335px\" \/><p id=\"caption-attachment-5734\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 10<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_10' value='328' \/><input type='hidden' id='answerType328' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-328[]' id='answer-id-988' class='answer   answerof-328 ' value='988'   \/><label for='answer-id-988' id='answer-label-988' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-328[]' id='answer-id-989' class='answer   answerof-328 ' value='989'   \/><label for='answer-id-989' id='answer-label-989' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-11' style=';'><div id='questionWrap-11'  class='   watupro-question-id-336'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>11. <\/span>\u03a3\u03c4\u03b7\u03bd \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03b7 \u03bc\u03b9\u03ba\u03c1\u03ae \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03cd\u03bf \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 F<sub>1<\/sub> \u03ba\u03b1\u03b9 F<sub>2<\/sub>. \u0391\u03bd \u03b7 F<sub>2<\/sub> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03c4\u03b7\u03c2 F<sub>1<\/sub>, \u03c4\u03cc\u03c4\u03b5 \u03b7 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b8\u03b1 \u03ba\u03b9\u03bd\u03b7\u03b8\u03b5\u03af \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf\u03bd \u03ac\u03be\u03bf\u03bd\u03b1 y \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b8\u03b5\u03c4\u03b9\u03ba\u03ae \u03c6\u03bf\u03c1\u03ac \u03c4\u03bf\u03c5.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5739\" style=\"width: 280px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5739\" class=\"wp-image-5739\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-11-288x300.jpeg\" alt=\"\" width=\"270\" height=\"281\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-11-288x300.jpeg 288w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-11-768x799.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-11-984x1024.jpeg 984w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-11.jpeg 1271w\" sizes=\"auto, (max-width: 270px) 100vw, 270px\" \/><p id=\"caption-attachment-5739\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 11<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 92px; left: 437px;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 92px; left: 437px;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_11' value='336' \/><input type='hidden' id='answerType336' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-336[]' id='answer-id-1004' class='answer   answerof-336 ' value='1004'   \/><label for='answer-id-1004' id='answer-label-1004' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-336[]' id='answer-id-1005' class='answer   answerof-336 ' value='1005'   \/><label for='answer-id-1005' id='answer-label-1005' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-12' style=';'><div id='questionWrap-12'  class='   watupro-question-id-329'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>12. <\/span>\u0388\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1. \u039a\u03ac\u03c0\u03bf\u03b9\u03b1 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c0\u03ac\u03bd\u03c9 \u03c4\u03bf\u03c5 \u03bc\u03af\u03b1 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03c0\u03c1\u03bf\u03bf\u03b4\u03b5\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5\u03b3\u03b1\u03bb\u03ce\u03bd\u03b5\u03b9. \u038c\u03c4\u03b1\u03bd \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c5\u03c0\u03b5\u03c1\u03b2\u03b5\u03af \u03c4\u03b7 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b8\u03b1 \u03b1\u03c1\u03c7\u03af\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03bf\u03bb\u03b9\u03c3\u03b8\u03b1\u03af\u03bd\u03b5\u03b9.<\/div><input type='hidden' name='question_id[]' id='qID_12' value='329' \/><input type='hidden' id='answerType329' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-329[]' id='answer-id-990' class='answer   answerof-329 ' value='990'   \/><label for='answer-id-990' id='answer-label-990' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-329[]' id='answer-id-991' class='answer   answerof-329 ' value='991'   \/><label for='answer-id-991' id='answer-label-991' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-13' style=';'><div id='questionWrap-13'  class='   watupro-question-id-330'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>13. <\/span>\u03a0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u0391 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b7\u03bc\u03ad\u03bd\u03bf \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u0392. \u03a3\u03c4\u03bf \u0391 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03cc\u03bb\u03bf \u03bc\u03b1\u03b6\u03af \u03c7\u03c9\u03c1\u03af\u03c2 \u03c4\u03bf \u0392 \u03bd\u03b1 \u03bf\u03bb\u03b9\u03c3\u03b8\u03b1\u03af\u03bd\u03b5\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u0391. \u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b5\u03af \u03c4\u03bf \u0392 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03b4\u03cd\u03bf \u03c3\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5729\" style=\"width: 347px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5729\" class=\"wp-image-5729\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-2-300x114.jpeg\" alt=\"\" width=\"337\" height=\"128\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-2-300x114.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-2-768x291.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-2-1024x388.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-2.jpeg 1128w\" sizes=\"auto, (max-width: 337px) 100vw, 337px\" \/><p id=\"caption-attachment-5729\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 13<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 92px; left: 403px;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_13' value='330' \/><input type='hidden' id='answerType330' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-330[]' id='answer-id-992' class='answer   answerof-330 ' value='992'   \/><label for='answer-id-992' id='answer-label-992' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-330[]' id='answer-id-993' class='answer   answerof-330 ' value='993'   \/><label for='answer-id-993' id='answer-label-993' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-14' style=';'><div id='questionWrap-14'  class='   watupro-question-id-338'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>14. <\/span>\u03a3\u03c4\u03bf \u03c3\u03c7. (\u03b1) \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 5m\/s \u03b5\u03bd\u03ce \u03b5\u03c0\u03ac\u03bd\u03c9 \u03c4\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F<sub>1<\/sub>. \u03a3\u03c4\u03bf \u03c3\u03c7. (\u03b2) \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03c3\u03ce\u03bc\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 10m\/s, \u03cc\u03c4\u03b1\u03bd \u03b5\u03c0\u03ac\u03bd\u03c9 \u03c4\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F<sub>2<\/sub>. \u0399\u03c3\u03c7\u03cd\u03b5\u03b9 F<sub>2<\/sub>&gt;F<sub>1<\/sub>.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5744\" style=\"width: 395px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5744\" class=\"wp-image-5744\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-16-300x120.jpeg\" alt=\"\" width=\"385\" height=\"154\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-16-300x120.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-16-768x308.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-16-1024x411.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-16.jpeg 1339w\" sizes=\"auto, (max-width: 385px) 100vw, 385px\" \/><p id=\"caption-attachment-5744\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 14<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 92px; left: 379px;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_14' value='338' \/><input type='hidden' id='answerType338' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-338[]' id='answer-id-1008' class='answer   answerof-338 ' value='1008'   \/><label for='answer-id-1008' id='answer-label-1008' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-338[]' id='answer-id-1009' class='answer   answerof-338 ' value='1009'   \/><label for='answer-id-1009' id='answer-label-1009' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-15' style=';'><div id='questionWrap-15'  class='   watupro-question-id-331'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>15. <\/span>\u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b4\u03b5\u03be\u03b9\u03ac \u03b5\u03be \u03b1\u03b9\u03c4\u03af\u03b1\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 F. \u03a3\u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 (\u03b1) \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b5\u03bd\u03ce \u03c3\u03c4\u03b7 (\u03b2) \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c5\u03c0\u03cc \u03b3\u03c9\u03bd\u03af\u03b1 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7. \u03a3\u03c4\u03b7 (\u03b2) \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03b7 \u03c4\u03c1\u03b9\u03b2\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5730\" style=\"width: 332px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5730\" class=\"wp-image-5730\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-3-300x95.jpeg\" alt=\"\" width=\"322\" height=\"102\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-3-300x95.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-3-768x243.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-3-1024x324.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-3.jpeg 1281w\" sizes=\"auto, (max-width: 322px) 100vw, 322px\" \/><p id=\"caption-attachment-5730\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 15<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_15' value='331' \/><input type='hidden' id='answerType331' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-331[]' id='answer-id-994' class='answer   answerof-331 ' value='994'   \/><label for='answer-id-994' id='answer-label-994' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-331[]' id='answer-id-995' class='answer   answerof-331 ' value='995'   \/><label for='answer-id-995' id='answer-label-995' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-16' style=';'><div id='questionWrap-16'  class='   watupro-question-id-332'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>16. <\/span>\u03a4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u0391 \u03ba\u03b1\u03b9 \u0392 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03af\u03b4\u03b9\u03b1\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03b5\u03bc\u03ad\u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03ad\u03bd\u03b1 \u03bd\u03ae\u03bc\u03b1. \u0391\u03c3\u03ba\u03bf\u03cd\u03bc\u03b5 \u03c3\u03c4\u03bf \u0391 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 \u03c4\u03c9\u03bd \u03b4\u03cd\u03bf \u03c3\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03b4\u03b5\u03be\u03b9\u03ac \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c5. \u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u0391 \u03ba\u03b1\u03b9 \u03b7 \u03c4\u03ac\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bd\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03a4 \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u0392 \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03c3\u03b5\u03c2.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5732\" style=\"width: 405px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5732\" class=\"wp-image-5732\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-5-300x91.jpeg\" alt=\"\" width=\"395\" height=\"120\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-5-300x91.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-5-768x234.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-5-1024x312.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-5.jpeg 1721w\" sizes=\"auto, (max-width: 395px) 100vw, 395px\" \/><p id=\"caption-attachment-5732\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 16<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_16' value='332' \/><input type='hidden' id='answerType332' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-332[]' id='answer-id-996' class='answer   answerof-332 ' value='996'   \/><label for='answer-id-996' id='answer-label-996' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-332[]' id='answer-id-997' class='answer   answerof-332 ' value='997'   \/><label for='answer-id-997' id='answer-label-997' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-17' style=';'><div id='questionWrap-17'  class='   watupro-question-id-333'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>17. <\/span>\u0391\u03bd \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 10kg \u03c0\u03bf\u03c5 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03bf\u03c1\u03b9\u03b6\u03bf\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03b1\u03c3\u03ba\u03b7\u03b8\u03b5\u03af \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 40\u039d \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03cd\u03bd\u03b5\u03b9 \u03bc\u03b5 4m\/s<sup>2<\/sup>, \u03c4\u03cc\u03c4\u03b5 \u03b7 \u03c4\u03c1\u03b9\u03b2\u03ae \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bc\u03b5\u03bb\u03b7\u03c4\u03ad\u03b1.<\/div><input type='hidden' name='question_id[]' id='qID_17' value='333' \/><input type='hidden' id='answerType333' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-333[]' id='answer-id-998' class='answer   answerof-333 ' value='998'   \/><label for='answer-id-998' id='answer-label-998' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-333[]' id='answer-id-999' class='answer   answerof-333 ' value='999'   \/><label for='answer-id-999' id='answer-label-999' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-18' style=';'><div id='questionWrap-18'  class='   watupro-question-id-334'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>18. <\/span>\u03a0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03b2\u03ac\u03bb\u03bb\u03b5\u03c4\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03bc\u03ac\u03b6\u03b1\u03c2 m \u03bc\u03b5 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c5<sub>0<\/sub>. \u039b\u03cc\u03b3\u03c9 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b5\u03c0\u03b9\u03b2\u03c1\u03ac\u03b4\u03c5\u03bd\u03c3\u03b7 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-d7493e41557a8106f80a40f08b87d074_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#118;&#101;&#99;&#123;&#97;&#125;&#32;\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"11\" style=\"vertical-align: 0px;\"\/>. \u0391\u03bd \u03b1\u03bd\u03c4\u03af \u03c4\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2 m \u03b2\u03ac\u03bb\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c5<sub>0 <\/sub>\u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1\u03c2 \u03bc\u03ac\u03b6\u03b1\u03c2, \u03c4\u03cc\u03c4\u03b5 \u03b7 \u03b5\u03c0\u03b9\u03b2\u03c1\u03ac\u03b4\u03c5\u03bd\u03c3\u03b7 \u03bb\u03cc\u03b3\u03c9 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03bc\u03b9\u03c3\u03ae \u03c4\u03b7\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae\u03c2.<\/div><input type='hidden' name='question_id[]' id='qID_18' value='334' \/><input type='hidden' id='answerType334' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-334[]' id='answer-id-1000' class='answer   answerof-334 ' value='1000'   \/><label for='answer-id-1000' id='answer-label-1000' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-334[]' id='answer-id-1001' class='answer   answerof-334 ' value='1001'   \/><label for='answer-id-1001' id='answer-label-1001' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-19' style=';'><div id='questionWrap-19'  class='   watupro-question-id-335'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>19. <\/span>\u03a0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03bf\u03bc\u03b1\u03bb\u03ac \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03c3\u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 30\u039d. \u038c\u03c4\u03b1\u03bd \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf, \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03c3\u03ba\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c4\u03c9\u03bd 30\u039d \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b7\u03b8\u03b5\u03af.<\/div><input type='hidden' name='question_id[]' id='qID_19' value='335' \/><input type='hidden' id='answerType335' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-335[]' id='answer-id-1002' class='answer   answerof-335 ' value='1002'   \/><label for='answer-id-1002' id='answer-label-1002' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-335[]' id='answer-id-1003' class='answer   answerof-335 ' value='1003'   \/><label for='answer-id-1003' id='answer-label-1003' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-20' style=';'><div id='questionWrap-20'  class='   watupro-question-id-337'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>20. <\/span>\u0391\u03c0\u03cc \u03c4\u03b7 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b3\u03c9\u03bd\u03af\u03b1\u03c2 30<sup>0<\/sup> \u03b2\u03ac\u03bb\u03bb\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c2 \u03c0\u03ac\u03bd\u03c9 \u03ad\u03bd\u03b1 \u03bc\u03b9\u03ba\u03c1\u03cc \u03c3\u03ce\u03bc\u03b1. \u0391\u03bd \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc=0,6, \u03c4\u03cc\u03c4\u03b5 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03b8\u03b1 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c4\u03bf\u03c5 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03b4\u03b5 \u03b8\u03b1 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ad\u03c8\u03b5\u03b9. \u0394\u03af\u03bd\u03b5\u03c4\u03b1\u03b9: \u03b5\u03c630=0,58 \u03ba\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03c1\u03b9\u03b1\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03af\u03b4\u03b9\u03bf\u03c2.<br \/>\r\n<br \/>\r\n<div id=\"attachment_5741\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5741\" class=\"wp-image-5741 size-medium\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-13-300x194.jpeg\" alt=\"\" width=\"300\" height=\"194\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-13-300x194.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-13-768x497.jpeg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-13-1024x662.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-13-280x180.jpeg 280w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2017\/07\/image-13.jpeg 1240w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-5741\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 20<\/p><\/div><br \/>\r\n<br \/>\r\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 92px; left: 422px;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 92px; left: 422px;\">\u039a\u03c1\u03ac\u03c4\u03b1 \u03c4\u03bf<\/span><\/div><input type='hidden' name='question_id[]' id='qID_20' value='337' 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