{"id":3946,"date":"2015-09-25T22:31:22","date_gmt":"2015-09-25T19:31:22","guid":{"rendered":"http:\/\/viewonphysics.gr\/?p=3946"},"modified":"2015-09-25T22:42:15","modified_gmt":"2015-09-25T19:42:15","slug":"%ce%b5%cf%85%ce%b8%cf%8d%ce%b3%cf%81%ce%b1%ce%bc%ce%bc%ce%b7-%ce%ba%ce%af%ce%bd%ce%b7%cf%83%ce%b7-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=3946","title":{"rendered":"\u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u039a\u03af\u03bd\u03b7\u03c3\u03b7 Online: \u03a3\u03c9\u03c3\u03c4\u03cc &#8211; \u039b\u03ac\u03b8\u03bf\u03c2"},"content":{"rendered":"<p><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=\"submittingExam25\" 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-25\"><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\u03bd \u0395\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u039a\u03af\u03bd\u03b7\u03c3\u03b7 \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-25\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-227'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>\u0397 \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7 \u03b4\u03b5\u03bd \u03b5\u03be\u03b1\u03c1\u03c4\u03ac\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03c0\u03bf\u03c5 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc, \u03b1\u03bb\u03bb\u03ac \u03bc\u03cc\u03bd\u03bf \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5 \u03b8\u03ad\u03c3\u03b7.<\/div><input type='hidden' name='question_id[]' id='qID_1' value='227' \/><input type='hidden' id='answerType227' 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-227[]' id='answer-id-705' class='answer   answerof-227 ' value='705'   \/><label for='answer-id-705' id='answer-label-705' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-227[]' id='answer-id-706' class='answer   answerof-227 ' value='706'   \/><label for='answer-id-706' id='answer-label-706' 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-228'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>\u0391\u03bd\u03c4\u03b9\u03ba\u03b5\u03af\u03bc\u03b5\u03bd\u03bf \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 A \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 B. \u0397 \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03ae \u03c4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u0394x=x<sub>B<\/sub>-x<sub>A<\/sub>=4-4=0.<br \/>\r\n<br \/>\r\n<div id=\"attachment_3949\" style=\"width: 313px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image5.jpeg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3949\" class=\"wp-image-3949\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image5-300x73.jpeg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 2\" width=\"303\" height=\"74\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image5-300x73.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image5-1024x250.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image5.jpeg 1686w\" sizes=\"auto, (max-width: 303px) 100vw, 303px\" \/><\/a><p id=\"caption-attachment-3949\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 2<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_2' value='228' \/><input type='hidden' id='answerType228' 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-228[]' id='answer-id-707' class='answer   answerof-228 ' value='707'   \/><label for='answer-id-707' id='answer-label-707' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-228[]' id='answer-id-708' class='answer   answerof-228 ' value='708'   \/><label for='answer-id-708' id='answer-label-708' 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-229'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>\u0388\u03bd\u03b1 \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03b5\u03ba\u03c4\u03b5\u03bb\u03b5\u03af \u03c4\u03b9\u03c2 \u03b5\u03be\u03ae\u03c2 \u03b4\u03b9\u03b1\u03b4\u03bf\u03c7\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03c4\u03bf\u03c0\u03af\u03c3\u03b5\u03b9\u03c2: \u0394x<sub>1<\/sub>=50m, \u0394x<sub>2<\/sub>=70m \u03ba\u03b1\u03b9 \u0394x<sub>3<\/sub>=-30m. \u03a4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03ac\u03bd\u03c5\u03c3\u03b5 \u03b5\u03af\u03bd\u03b1\u03b9 150m.<\/div><input type='hidden' name='question_id[]' id='qID_3' value='229' \/><input type='hidden' id='answerType229' 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-229[]' id='answer-id-709' class='answer   answerof-229 ' value='709'   \/><label for='answer-id-709' id='answer-label-709' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-229[]' id='answer-id-710' class='answer   answerof-229 ' value='710'   \/><label for='answer-id-710' id='answer-label-710' 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-230'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>\u03a4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf (1) \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u0391 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 40m\/s \u03bc\u03b5 \u03c0\u03c1\u03bf\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u0392. \u03a4\u03b1\u03c5\u03c4\u03cc\u03c7\u03c1\u03bf\u03bd\u03b1, \u03b1\u03c0\u03cc \u03c4\u03bf \u03bc\u03ad\u03c3\u03bf \u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u0391\u0392 \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03c4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf (2) \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 19m\/s, \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03bf \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u0392. \u03a0\u03c1\u03ce\u03c4\u03bf \u03b8\u03b1 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03c3\u03c4\u03bf \u0392 \u03c4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf (1).<br \/>\r\n<br \/>\r\n<div id=\"attachment_3950\" style=\"width: 385px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image6.jpeg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3950\" class=\"wp-image-3950 \" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image6-300x83.jpeg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 4\" width=\"375\" height=\"104\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image6-300x83.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image6-1024x283.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image6.jpeg 1933w\" sizes=\"auto, (max-width: 375px) 100vw, 375px\" \/><\/a><p id=\"caption-attachment-3950\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 4<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_4' value='230' \/><input type='hidden' id='answerType230' 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-230[]' id='answer-id-711' class='answer   answerof-230 ' value='711'   \/><label for='answer-id-711' id='answer-label-711' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-230[]' id='answer-id-712' class='answer   answerof-230 ' value='712'   \/><label for='answer-id-712' id='answer-label-712' 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-241'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>\u0388\u03bd\u03b1 \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03b4\u03b9\u03b1\u03bd\u03cd\u03b5\u03b9 \u03b4\u03cd\u03bf \u03b4\u03b9\u03b1\u03b4\u03bf\u03c7\u03b9\u03ba\u03ac \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c3\u03b5 \u03af\u03c3\u03bf\u03c5\u03c2 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5\u03c2, \u03b1\u03bb\u03bb\u03ac \u03bc\u03b5 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ad\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b5\u03c2. \u03a4\u03cc\u03c4\u03b5 \u03b7 \u03bc\u03ad\u03c3\u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03cc\u03bb\u03b7 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf \u03bc\u03ad\u03c3\u03bf \u03cc\u03c1\u03bf \u03c4\u03c9\u03bd \u03b4\u03cd\u03bf \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd.<br \/>\r\n<br \/>\r\n<div id=\"attachment_3954\" style=\"width: 376px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image8.jpeg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3954\" class=\"wp-image-3954 \" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image8-300x82.jpeg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 14\" width=\"366\" height=\"100\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image8-300x82.jpeg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image8-1024x281.jpeg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image8.jpeg 1836w\" sizes=\"auto, (max-width: 366px) 100vw, 366px\" \/><\/a><p id=\"caption-attachment-3954\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 5<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_5' value='241' \/><input type='hidden' id='answerType241' 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-241[]' id='answer-id-733' class='answer   answerof-241 ' value='733'   \/><label for='answer-id-733' id='answer-label-733' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-241[]' id='answer-id-734' class='answer   answerof-241 ' value='734'   \/><label for='answer-id-734' id='answer-label-734' 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-231'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>\u03a3\u03c4\u03b7\u03bd \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ae \u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03b7 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03ba\u03b1\u03b9 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b7\u03b4\u03b5\u03bd\u03cc\u03c2.<\/div><input type='hidden' name='question_id[]' id='qID_6' value='231' \/><input type='hidden' id='answerType231' 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-231[]' id='answer-id-713' class='answer   answerof-231 ' value='713'   \/><label for='answer-id-713' id='answer-label-713' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-231[]' id='answer-id-714' class='answer   answerof-231 ' value='714'   \/><label for='answer-id-714' id='answer-label-714' 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-237'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>\u0397 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03bf \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b1 \u03c4\u03c1\u03ad\u03c7\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1.<\/div><input type='hidden' name='question_id[]' id='qID_7' value='237' \/><input type='hidden' id='answerType237' 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-237[]' id='answer-id-725' class='answer   answerof-237 ' value='725'   \/><label for='answer-id-725' id='answer-label-725' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-237[]' id='answer-id-726' class='answer   answerof-237 ' value='726'   \/><label for='answer-id-726' id='answer-label-726' 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-243'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>\u0388\u03bd\u03b1 \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b7\u03c1\u03b5\u03bc\u03af\u03b1 \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b5\u03c5\u03b8\u03cd\u03b3\u03c1\u03b1\u03bc\u03bc\u03b7 \u03bf\u03bc\u03b1\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03c5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7. \u0391\u03bd \u03c3\u03b5 5s \u03b4\u03b9\u03b1\u03bd\u03cd\u03b5\u03b9 30m, \u03c4\u03cc\u03c4\u03b5 \u03c3\u03b5 10s \u03b8\u03b1 \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03b5\u03b9 60m.<\/div><input type='hidden' name='question_id[]' id='qID_8' value='243' \/><input type='hidden' id='answerType243' 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-243[]' id='answer-id-737' class='answer   answerof-243 ' value='737'   \/><label for='answer-id-737' id='answer-label-737' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-243[]' id='answer-id-738' class='answer   answerof-243 ' value='738'   \/><label for='answer-id-738' id='answer-label-738' 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-232'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>\u0388\u03bd\u03b1 \u03c3\u03c9\u03bc\u03b1\u03c4\u03af\u03b4\u03b9\u03bf \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9. \u038c\u03c4\u03b1\u03bd \u03b7 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03ae \u03c4\u03bf\u03c5 \u03b3\u03af\u03bd\u03b5\u03b9 \u03bc\u03b7\u03b4\u03ad\u03bd, \u03b1\u03c0\u03bf\u03ba\u03c4\u03ac \u03c4\u03b7 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1.<\/div><input type='hidden' name='question_id[]' id='qID_9' value='232' \/><input type='hidden' id='answerType232' 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-232[]' id='answer-id-715' class='answer   answerof-232 ' value='715'   \/><label for='answer-id-715' id='answer-label-715' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-232[]' id='answer-id-716' class='answer   answerof-232 ' value='716'   \/><label for='answer-id-716' id='answer-label-716' 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-238'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>\u038c\u03c4\u03b1\u03bd \u03b7 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5. \u039a\u03b1\u03b9 \u03cc\u03c4\u03b1\u03bd \u03b7 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5.<\/div><input type='hidden' name='question_id[]' id='qID_10' value='238' \/><input type='hidden' id='answerType238' 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-238[]' id='answer-id-727' class='answer   answerof-238 ' value='727'   \/><label for='answer-id-727' id='answer-label-727' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-238[]' id='answer-id-728' class='answer   answerof-238 ' value='728'   \/><label for='answer-id-728' id='answer-label-728' 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-233'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>11. <\/span>\u0395\u03af\u03bd\u03b1\u03b9 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03b7 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u00a0 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03bd\u03b1 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9.<\/div><input type='hidden' name='question_id[]' id='qID_11' value='233' \/><input type='hidden' id='answerType233' 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-233[]' id='answer-id-717' class='answer   answerof-233 ' value='717'   \/><label for='answer-id-717' id='answer-label-717' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-233[]' id='answer-id-718' class='answer   answerof-233 ' value='718'   \/><label for='answer-id-718' id='answer-label-718' 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-235'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>12. <\/span>\u0388\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03c4\u03b1\u03c5\u03c4\u03cc\u03c7\u03c1\u03bf\u03bd\u03b1 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b7\u03b4\u03ad\u03bd \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b7\u03b4\u03b5\u03bd\u03cc\u03c2.<\/div><input type='hidden' name='question_id[]' id='qID_12' value='235' \/><input type='hidden' id='answerType235' 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-235[]' id='answer-id-721' class='answer   answerof-235 ' value='721'   \/><label for='answer-id-721' id='answer-label-721' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-235[]' id='answer-id-722' class='answer   answerof-235 ' value='722'   \/><label for='answer-id-722' id='answer-label-722' 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-236'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>13. <\/span>\u038c\u03c4\u03b1\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1, \u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03bb\u03bb\u03ac\u03be\u03b5\u03b9 \u03c6\u03bf\u03c1\u03ac.<\/div><input type='hidden' name='question_id[]' id='qID_13' value='236' \/><input type='hidden' id='answerType236' 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-236[]' id='answer-id-723' class='answer   answerof-236 ' value='723'   \/><label for='answer-id-723' id='answer-label-723' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-236[]' id='answer-id-724' class='answer   answerof-236 ' value='724'   \/><label for='answer-id-724' id='answer-label-724' 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-240'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>14. <\/span>\u0397 \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03ad\u03c7\u03c1\u03b9 \u03bd\u03b1 \u03c3\u03c4\u03b1\u03bc\u03b1\u03c4\u03ae\u03c3\u03b5\u03b9 \u03b4\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-5af7f2ccc7d3679fbfb14ac1a477fbff_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;&#68;&#101;&#108;&#116;&#97;&#32;&#120;&#32;&#61;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#123;&#118;&#95;&#48;&#125;&#94;&#50;&#125;&#123;&#50;&#97;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"35\" width=\"66\" style=\"vertical-align: -11px;\"\/>, \u03cc\u03c0\u03bf\u03c5 \u03b1 \u03b7 \u03b5\u03c0\u03b9\u03b2\u03c1\u03ac\u03b4\u03c5\u03bd\u03c3\u03b7.<\/div><input type='hidden' name='question_id[]' id='qID_14' value='240' \/><input type='hidden' id='answerType240' 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-240[]' id='answer-id-731' class='answer   answerof-240 ' value='731'   \/><label for='answer-id-731' id='answer-label-731' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-240[]' id='answer-id-732' class='answer   answerof-240 ' value='732'   \/><label for='answer-id-732' id='answer-label-732' 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-242'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>15. <\/span>\u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b8\u03ad\u03c3\u03b7\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03ba\u03b9\u03bd\u03b7\u03c4\u03bf\u03cd \u03b5\u03af\u03bd\u03b1\u03b9: <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-e3cfc28a5e85e125eb98ca296ab8b9f7_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;&#120;&#32;&#61;&#49;&#50;&#109;&#43;&#32;&#40;&#50;&#48;&#109;&#47;&#115;&#41;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#116;&#43;&#40;&#52;&#109;&#47;&#115;&#94;&#50;&#41;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#116;&#94;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"249\" style=\"vertical-align: -4px;\"\/>. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2 \u03b7 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 20m\/s \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 4m\/s<sup>2<\/sup>.<\/div><input type='hidden' name='question_id[]' id='qID_15' value='242' \/><input type='hidden' id='answerType242' 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-242[]' id='answer-id-735' class='answer   answerof-242 ' value='735'   \/><label for='answer-id-735' id='answer-label-735' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-242[]' id='answer-id-736' class='answer   answerof-242 ' value='736'   \/><label for='answer-id-736' id='answer-label-736' 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-244'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>16. <\/span>\u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-8ba2559cbb62b5b8b41e502afdf33711_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;&#118;&#32;&#61;&#32;&#51;&#48;&#109;&#47;&#115;&#45;&#40;&#53;&#109;&#47;&#115;&#94;&#50;&#41;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#116;&#44;&#32;&#92;&#113;&#117;&#97;&#100;&#32;&#116;&#32;&#92;&#105;&#110;&#32;&#091;&#48;&#44;&#32;&#49;&#48;&#115;&#093;\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"257\" style=\"vertical-align: -4px;\"\/>. \u03a4\u03bf \u03c3\u03ce\u03bc\u03b1 \u03c3\u03c4\u03b1 8s \u03b8\u03b1 \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03b8\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03c6\u03bf\u03c1\u03ac \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b7 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5.<\/div><input type='hidden' name='question_id[]' id='qID_16' value='244' \/><input type='hidden' id='answerType244' 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-244[]' id='answer-id-739' class='answer   answerof-244 ' value='739'   \/><label for='answer-id-739' id='answer-label-739' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-244[]' id='answer-id-740' class='answer   answerof-244 ' value='740'   \/><label for='answer-id-740' id='answer-label-740' 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-245'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>17. <\/span>\u0391\u03c0\u03cc \u03c4\u03bf \u03b4\u03b9\u03ac\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1\u03c2 \u03c0\u03c1\u03bf\u03ba\u03cd\u03c0\u03c4\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03c4\u03b7 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae 8s \u03c0\u03b5\u03c1\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5 \u03b8\u03ad\u03c3\u03b7.<br \/>\r\n<br \/>\r\n<div id=\"attachment_3956\" style=\"width: 278px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image9.jpeg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3956\" class=\"wp-image-3956 \" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image9-285x300.jpeg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 18\" width=\"268\" height=\"282\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image9-285x300.jpeg 285w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image9-971x1024.jpeg 971w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image9.jpeg 1268w\" sizes=\"auto, (max-width: 268px) 100vw, 268px\" \/><\/a><p id=\"caption-attachment-3956\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 17<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_17' value='245' \/><input type='hidden' id='answerType245' 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-245[]' id='answer-id-741' class='answer   answerof-245 ' value='741'   \/><label for='answer-id-741' id='answer-label-741' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-245[]' id='answer-id-742' class='answer   answerof-245 ' value='742'   \/><label for='answer-id-742' id='answer-label-742' 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-246'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>18. <\/span>\u0388\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03b5\u03c0\u03b9\u03c4\u03b1\u03c7\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03be\u03b5\u03ba\u03b9\u03bd\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b7\u03c1\u03b5\u03bc\u03af\u03b1. \u0391\u03c6\u03bf\u03cd \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03b5\u03b9 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 s \u03b1\u03c0\u03bf\u03ba\u03c4\u03ac \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c5. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03ba\u03c4\u03ae\u03c3\u03b5\u03b9 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7, \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03b5\u03b9 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7.<\/div><input type='hidden' name='question_id[]' id='qID_18' value='246' \/><input type='hidden' id='answerType246' 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-246[]' id='answer-id-743' class='answer   answerof-246 ' value='743'   \/><label for='answer-id-743' id='answer-label-743' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-246[]' id='answer-id-744' class='answer   answerof-246 ' value='744'   \/><label for='answer-id-744' id='answer-label-744' 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-247'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>19. <\/span>\u0391\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c6\u03c1\u03b5\u03bd\u03ac\u03c1\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1\u03bc\u03b1\u03c4\u03ac\u03b5\u03b9 \u03c3\u03b5 \u03c7\u03c1\u03cc\u03bd\u03bf t. \u0394\u03ad\u03be\u03bf\u03c5 \u03cc\u03c4\u03b9 \u03ba\u03b1\u03c4\u03ac \u03c4\u03bf \u03c6\u03c1\u03b5\u03bd\u03ac\u03c1\u03b9\u03c3\u03bc\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b5\u03c0\u03b9\u03b2\u03c1\u03ac\u03b4\u03c5\u03bd\u03c3\u03b7 \u03b1. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03c9\u03b8\u03b5\u03af \u03c3\u03c4\u03bf \u03bc\u03b9\u03c3\u03cc \u03bf \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c6\u03c1\u03b5\u03bd\u03b1\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03bf\u03c2, \u03c4\u03cc\u03c4\u03b5 \u03b7 \u03b5\u03c0\u03b9\u03b2\u03c1\u03ac\u03c5\u03bd\u03c3\u03b7 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 2\u03b1.<\/div><input type='hidden' name='question_id[]' id='qID_19' value='247' \/><input type='hidden' id='answerType247' 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-247[]' id='answer-id-745' class='answer   answerof-247 ' value='745'   \/><label for='answer-id-745' id='answer-label-745' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-247[]' id='answer-id-746' class='answer   answerof-247 ' value='746'   \/><label for='answer-id-746' id='answer-label-746' 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-248'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>20. <\/span>\u0391\u03c0\u03cc \u03c4\u03bf \u03b4\u03b9\u03ac\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1 \u03b5\u03c0\u03b9\u03c4\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2-\u03c7\u03c1\u03cc\u03bd\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ba\u03cd\u03c0\u03c4\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c3\u03c4\u03b1 20s \u03c4\u03bf \u03ba\u03b9\u03bd\u03b7\u03c4\u03cc \u03b1\u03c0\u03bf\u03ba\u03c4\u03ac \u03ba\u03b1\u03b9 \u03c0\u03ac\u03bb\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5.<br \/>\r\n<br \/>\r\n<div id=\"attachment_3958\" style=\"width: 261px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image10.jpeg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3958\" class=\" wp-image-3958\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image10-263x300.jpeg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 20\" width=\"251\" height=\"287\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image10-263x300.jpeg 263w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image10-898x1024.jpeg 898w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2015\/09\/image10.jpeg 1148w\" sizes=\"auto, (max-width: 251px) 100vw, 251px\" \/><\/a><p id=\"caption-attachment-3958\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 20<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_20' value='248' \/><input type='hidden' id='answerType248' 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-248[]' id='answer-id-747' class='answer   answerof-248 ' value='747'   \/><label for='answer-id-747' id='answer-label-747' class=' answer'><span>True<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-248[]' id='answer-id-748' class='answer   answerof-248 ' value='748'   \/><label for='answer-id-748' id='answer-label-748' class=' answer'><span>False<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-21'>\n\t<div class='question-content'>\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\" \/>&nbsp;Loading...\t<\/div>\n<\/div>\n\n<br \/>\n\t\n\t\t\t<div class=\"watupro_buttons flex \" id=\"watuPROButtons25\">\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; \u03a0\u03c1\u03bf\u03b7\u03b3\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf\u03b7\" onclick=\"WatuPRO.nextQuestion(event, 'previous');\"\/><\/div>\t\t  \t\t  \t\t   \n\t\t   \t  \t\t<div><input type=\"button\" name=\"action\" class=\"watupro-submit-button\" onclick=\"WatuPRO.submitResult(event)\" id=\"action-button\" value=\"\u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1\"  \/>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\n\t<input type=\"hidden\" name=\"quiz_id\" value=\"25\" id=\"watuPROExamID\"\/>\n\t<input type=\"hidden\" name=\"start_time\" id=\"startTime\" value=\"2026-04-28 08:33:05\" \/>\n\t<input 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