{"id":1830,"date":"2021-02-15T09:59:26","date_gmt":"2021-02-15T09:59:26","guid":{"rendered":"https:\/\/physicscatalyst.com\/testprep\/class-11-physics\/work-power-and-energy-quiz-with-answers\/"},"modified":"2021-02-15T10:14:01","modified_gmt":"2021-02-15T10:14:01","slug":"work-power-and-energy-quiz-with-answers","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/testprep\/class-11-physics\/work-power-and-energy-quiz-with-answers\/","title":{"rendered":"Work Power and Energy Quiz with Answers"},"content":{"rendered":"\n<p>This online quiz contains 20 work, energy and power test questions for <a href=\"https:\/\/physicscatalyst.com\/class11.php\" target=\"_blank\" rel=\"noreferrer noopener\">class 11 physics<\/a> chapter 6.  This mcq online practice problems with answers also has assertion and reason type questions.  To evaluate your performance of this chapter try and solve these test questions in stipulated amount of time. This is not a timed test so keep track of how much time you are taking in solving this test.  Answers to all the questions along with solutions can be found after submitting this test by clicking &#8216;submit&#8217; button.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1120\" height=\"630\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2021\/02\/Work-Power-and-Energy-Quiz.png\" alt=\"work, energy and power test blog banner\" class=\"wp-image-1832\"\/><figcaption>image made using canva.com<\/figcaption><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"has-text-align-center wp-block-heading\">Multiple Choice Questions on Work, Energy and Power<\/h2>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<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=\"submittingExam290\" style=\"display:none;text-align:center;\">Please wait...<br><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-290\"><p><strong>General Instructions<\/strong><\/p>\n<ol>\n<li>Your test contains multiple-choice questions with only one answer type of questions. There are a total of 20 questions<\/li>\n<li>This is a 45 min test. Please make sure you complete it in the stipulated time<\/li>\n<li>You can finish this test any time using the 'Submit' button.<\/li>\n<\/ol>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-290\"  enctype=\"multipart\/form-data\" >\n<div class='watupro-paginator-wrap watupro-question-paginator-wrap ' style='display:none;'><ul class='watupro-paginator watupro-question-paginator watupro-paginator-custom'><li class=\"rewind-down\" onclick=\"WatuPRO.movePaginator('down', 21);\">&lt;&lt;<\/li><li class='active  decade-1' id='WatuPROPagination1' onclick='WatuPRO.goto(event, 1, true);'>1<\/li><li class='  decade-1' id='WatuPROPagination2' onclick='WatuPRO.goto(event, 2, true);'>2<\/li><li class='  decade-1' id='WatuPROPagination3' onclick='WatuPRO.goto(event, 3, true);'>3<\/li><li class='  decade-1' id='WatuPROPagination4' onclick='WatuPRO.goto(event, 4, true);'>4<\/li><li class='  decade-1' id='WatuPROPagination5' onclick='WatuPRO.goto(event, 5, true);'>5<\/li><li class='  decade-1' id='WatuPROPagination6' onclick='WatuPRO.goto(event, 6, true);'>6<\/li><li class='  decade-1' id='WatuPROPagination7' onclick='WatuPRO.goto(event, 7, true);'>7<\/li><li class='  decade-1' id='WatuPROPagination8' onclick='WatuPRO.goto(event, 8, true);'>8<\/li><li class='  decade-1' id='WatuPROPagination9' onclick='WatuPRO.goto(event, 9, true);'>9<\/li><li class='  decade-1' id='WatuPROPagination10' onclick='WatuPRO.goto(event, 10, true);'>10<\/li><li class='  decade-2' id='WatuPROPagination11' onclick='WatuPRO.goto(event, 11, true);'>11<\/li><li class='  decade-2' id='WatuPROPagination12' onclick='WatuPRO.goto(event, 12, true);'>12<\/li><li class='  decade-2' id='WatuPROPagination13' onclick='WatuPRO.goto(event, 13, true);'>13<\/li><li class='  decade-2' id='WatuPROPagination14' onclick='WatuPRO.goto(event, 14, true);'>14<\/li><li class='  decade-2' id='WatuPROPagination15' onclick='WatuPRO.goto(event, 15, true);'>15<\/li><li class='  decade-2' id='WatuPROPagination16' onclick='WatuPRO.goto(event, 16, true);'>16<\/li><li class='  decade-2' id='WatuPROPagination17' onclick='WatuPRO.goto(event, 17, true);'>17<\/li><li class='  decade-2' id='WatuPROPagination18' onclick='WatuPRO.goto(event, 18, true);'>18<\/li><li class='  decade-2' id='WatuPROPagination19' onclick='WatuPRO.goto(event, 19, true);'>19<\/li><li class='  decade-2' id='WatuPROPagination20' onclick='WatuPRO.goto(event, 20, true);'>20<\/li><li class='  decade-3' id='WatuPROPagination21' onclick='WatuPRO.goto(event, 21, true);'>21<\/li><li  class=\"rewind-up\" onclick=\"WatuPRO.movePaginator('up', 21);\">&gt;&gt;<\/li><\/ul><\/div><div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-5098'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>If a machine is lubricated with oil<\/div><input type='hidden' name='question_id[]' id='qID_1' value='5098' class='watupro-question-id'\/><input type='hidden' id='answerType5098' class='answerTypeCnt1' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5098'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5098[]' id='answer-id-20260' class='answer   answerof-5098  ' value='20260'   \/><label for='answer-id-20260' id='answer-label-20260' class=' answer'><span>The mechanical advantage of the machine increases<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5098[]' id='answer-id-20261' class='answer   answerof-5098  ' value='20261'   \/><label for='answer-id-20261' id='answer-label-20261' class=' answer'><span>The mechanical efficiency of the machine increases.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5098[]' id='answer-id-20262' class='answer   answerof-5098  ' value='20262'   \/><label for='answer-id-20262' id='answer-label-20262' class=' answer'><span>c.\tBoth its mechanical advantage and efficiency decreases.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5098[]' id='answer-id-20263' class='answer   answerof-5098  ' value='20263'   \/><label for='answer-id-20263' id='answer-label-20263' class=' answer'><span>Its efficiency increases, but its mechanical advantage decreases.<\/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-5099'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>An ideal spring with spring constant k is hung from the ceiling and a block of mass M is attached to its lower end. The mass is released with the spring initially unstretched. Then the maximum extension in the spring is<\/div><input type='hidden' name='question_id[]' id='qID_2' value='5099' class='watupro-question-id'\/><input type='hidden' id='answerType5099' class='answerTypeCnt2' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5099'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5099[]' id='answer-id-20264' class='answer   answerof-5099  ' value='20264'   \/><label for='answer-id-20264' id='answer-label-20264' class=' answer'><span>$\\frac{4Mg}{k}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5099[]' id='answer-id-20265' class='answer   answerof-5099  ' value='20265'   \/><label for='answer-id-20265' id='answer-label-20265' class=' answer'><span>$\\frac{2Mg}{k}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5099[]' id='answer-id-20266' class='answer   answerof-5099  ' value='20266'   \/><label for='answer-id-20266' id='answer-label-20266' class=' answer'><span>$\\frac{Mg}{k}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5099[]' id='answer-id-20267' class='answer   answerof-5099  ' value='20267'   \/><label for='answer-id-20267' id='answer-label-20267' class=' answer'><span>$\\frac{Mg}{2k}$<\/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-5100'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>A particle is acted by a force $F=kx$, where $k$ is a positive constant. Its potential energy at $x=0$ is zero. Which curve correctly represents the variation of the potential energy of the block with respect to $x$?<br \/>\r\n<br \/>\r\n<\/div><input type='hidden' name='question_id[]' id='qID_3' value='5100' class='watupro-question-id'\/><input type='hidden' id='answerType5100' class='answerTypeCnt3' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5100'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5100[]' id='answer-id-20268' class='answer   answerof-5100  ' value='20268'   \/><label for='answer-id-20268' id='answer-label-20268' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2021\/02\/work-energy-3a.png\" alt=\"\" width=\"188\" height=\"174\" class=\"alignnone size-full wp-image-1826\" \/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5100[]' id='answer-id-20269' class='answer   answerof-5100  ' value='20269'   \/><label for='answer-id-20269' id='answer-label-20269' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2021\/02\/work-energy-3b.png\" alt=\"\" width=\"188\" height=\"174\" class=\"alignnone size-full wp-image-1825\" \/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5100[]' id='answer-id-20270' class='answer   answerof-5100  ' value='20270'   \/><label for='answer-id-20270' id='answer-label-20270' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2021\/02\/work-energy-3c.png\" alt=\"\" width=\"188\" height=\"174\" class=\"alignnone size-full wp-image-1824\" \/><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5100[]' id='answer-id-20271' class='answer   answerof-5100  ' value='20271'   \/><label for='answer-id-20271' id='answer-label-20271' class=' answer'><span><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2021\/02\/work-energy-3d.png\" alt=\"\" width=\"188\" height=\"174\" class=\"alignnone size-full wp-image-1823\" \/><\/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-5101'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>A force $\\vec{F}=\\left(5\\hat{i}+3\\hat{j}+2\\hat{k}\\right)N$ is applied over a particle which displaces it from its origin to the point $\\vec{r}=\\left(2\\hat{i}-\\hat{j}\\right)m$. The work done on the particle (in joule) is<\/div><input type='hidden' name='question_id[]' id='qID_4' value='5101' class='watupro-question-id'\/><input type='hidden' id='answerType5101' class='answerTypeCnt4' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5101'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5101[]' id='answer-id-20272' class='answer   answerof-5101  ' value='20272'   \/><label for='answer-id-20272' id='answer-label-20272' class=' answer'><span>-7<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5101[]' id='answer-id-20273' class='answer   answerof-5101  ' value='20273'   \/><label for='answer-id-20273' id='answer-label-20273' class=' answer'><span>+7<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5101[]' id='answer-id-20274' class='answer   answerof-5101  ' value='20274'   \/><label for='answer-id-20274' id='answer-label-20274' class=' answer'><span>+10<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5101[]' id='answer-id-20275' class='answer   answerof-5101  ' value='20275'   \/><label for='answer-id-20275' id='answer-label-20275' class=' answer'><span>+13<\/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-5102'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>A particle of mass 100 g is thrown vertically upwards with a speed of 5 m\/s. The work done by the force of gravity during the time the particle goes up is<\/div><input type='hidden' name='question_id[]' id='qID_5' value='5102' class='watupro-question-id'\/><input type='hidden' id='answerType5102' class='answerTypeCnt5' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5102'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5102[]' id='answer-id-20276' class='answer   answerof-5102  ' value='20276'   \/><label for='answer-id-20276' id='answer-label-20276' class=' answer'><span>1.25 J\r\n<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5102[]' id='answer-id-20277' class='answer   answerof-5102  ' value='20277'   \/><label for='answer-id-20277' id='answer-label-20277' class=' answer'><span>0.5 J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5102[]' id='answer-id-20278' class='answer   answerof-5102  ' value='20278'   \/><label for='answer-id-20278' id='answer-label-20278' class=' answer'><span>-0.5 J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5102[]' id='answer-id-20279' class='answer   answerof-5102  ' value='20279'   \/><label for='answer-id-20279' id='answer-label-20279' class=' answer'><span>-1.25 J<\/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-5103'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>A ball whose Kinetic Energy is $E$, is projected at an angle of ${45}^0$ to the horizontal. The kinetic energy of the ball at the highest point of its flight will be<br \/>\r\n\t<br \/>\r\n<\/div><input type='hidden' name='question_id[]' id='qID_6' value='5103' class='watupro-question-id'\/><input type='hidden' id='answerType5103' class='answerTypeCnt6' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5103'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5103[]' id='answer-id-20280' class='answer   answerof-5103  ' value='20280'   \/><label for='answer-id-20280' id='answer-label-20280' class=' answer'><span>$E$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5103[]' id='answer-id-20281' class='answer   answerof-5103  ' value='20281'   \/><label for='answer-id-20281' id='answer-label-20281' class=' answer'><span>$E\/\\sqrt2$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5103[]' id='answer-id-20282' class='answer   answerof-5103  ' value='20282'   \/><label for='answer-id-20282' id='answer-label-20282' class=' answer'><span>$E\/2$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5103[]' id='answer-id-20283' class='answer   answerof-5103  ' value='20283'   \/><label for='answer-id-20283' id='answer-label-20283' class=' answer'><span>$Zero$<\/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-5104'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>The potential energy of a one Kg particle free to move along the x-axis is given by<br \/>\r\n$V\\left(x\\right)=\\frac{x^4}{4}-\\frac{x^2}{2}$ (in Joule)          <br \/>\r\nThe total mechanical energy of the particle is $2J$. Then maximum speed (in m\/s) is<\/div><input type='hidden' name='question_id[]' id='qID_7' value='5104' class='watupro-question-id'\/><input type='hidden' id='answerType5104' class='answerTypeCnt7' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5104'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5104[]' id='answer-id-20284' class='answer   answerof-5104  ' value='20284'   \/><label for='answer-id-20284' id='answer-label-20284' class=' answer'><span>$1\/\\sqrt2$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5104[]' id='answer-id-20285' class='answer   answerof-5104  ' value='20285'   \/><label for='answer-id-20285' id='answer-label-20285' class=' answer'><span>2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5104[]' id='answer-id-20286' class='answer   answerof-5104  ' value='20286'   \/><label for='answer-id-20286' id='answer-label-20286' class=' answer'><span>$3\/\\sqrt2$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5104[]' id='answer-id-20287' class='answer   answerof-5104  ' value='20287'   \/><label for='answer-id-20287' id='answer-label-20287' class=' answer'><span>$\\sqrt2$<\/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-5105'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>The block of mass $M$ moving on the frictionless horizontal surface collides with the spring of spring constant $k$ and compress it by length $L$.<br \/>\r\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2021\/02\/work-energy-8q.png\" alt=\"\" width=\"294\" height=\"95\" class=\"alignnone size-full wp-image-1827\" \/>The maximum momentum of the block after the collision is<\/div><input type='hidden' name='question_id[]' id='qID_8' value='5105' class='watupro-question-id'\/><input type='hidden' id='answerType5105' class='answerTypeCnt8' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5105'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5105[]' id='answer-id-20288' class='answer   answerof-5105  ' value='20288'   \/><label for='answer-id-20288' id='answer-label-20288' class=' answer'><span>$\\frac{ML^2}{k}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5105[]' id='answer-id-20289' class='answer   answerof-5105  ' value='20289'   \/><label for='answer-id-20289' id='answer-label-20289' class=' answer'><span>$\\frac{kL^2}{2M}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5105[]' id='answer-id-20290' class='answer   answerof-5105  ' value='20290'   \/><label for='answer-id-20290' id='answer-label-20290' class=' answer'><span>$\\sqrt{Mk}L$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5105[]' id='answer-id-20291' class='answer   answerof-5105  ' value='20291'   \/><label for='answer-id-20291' id='answer-label-20291' class=' answer'><span>Zero<\/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-5106'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>A bomb of mass 16 Kg at rest explodes into two pieces of masses 4Kg and 12 Kg. The velocity of the 12 Kg mass is 4 m\/s. The kinetic energy of the other mass is<\/div><input type='hidden' name='question_id[]' id='qID_9' value='5106' class='watupro-question-id'\/><input type='hidden' id='answerType5106' class='answerTypeCnt9' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5106'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5106[]' id='answer-id-20292' class='answer   answerof-5106  ' value='20292'   \/><label for='answer-id-20292' id='answer-label-20292' class=' answer'><span>192 J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5106[]' id='answer-id-20293' class='answer   answerof-5106  ' value='20293'   \/><label for='answer-id-20293' id='answer-label-20293' class=' answer'><span>96 J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5106[]' id='answer-id-20294' class='answer   answerof-5106  ' value='20294'   \/><label for='answer-id-20294' id='answer-label-20294' class=' answer'><span>144 J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5106[]' id='answer-id-20295' class='answer   answerof-5106  ' value='20295'   \/><label for='answer-id-20295' id='answer-label-20295' class=' answer'><span>288 J<\/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-5107'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>A mass m moves with velocity v and collides elastically with another identical mass at rest. After the collision, the first mass moves with velocity v\/\\sqrt3 in a direction perpendicular to the initial direction of motion.<br \/>\r\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2021\/02\/work-energy-10q.png\" alt=\"\" width=\"326\" height=\"121\" class=\"alignnone size-full wp-image-1828\" \/> <br>Find the speed of the second mass after the collision.<\/div><input type='hidden' name='question_id[]' id='qID_10' value='5107' class='watupro-question-id'\/><input type='hidden' id='answerType5107' class='answerTypeCnt10' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5107'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5107[]' id='answer-id-20296' class='answer   answerof-5107  ' value='20296'   \/><label for='answer-id-20296' id='answer-label-20296' class=' answer'><span>$v$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5107[]' id='answer-id-20297' class='answer   answerof-5107  ' value='20297'   \/><label for='answer-id-20297' id='answer-label-20297' class=' answer'><span>$\\sqrt3v$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5107[]' id='answer-id-20298' class='answer   answerof-5107  ' value='20298'   \/><label for='answer-id-20298' id='answer-label-20298' class=' answer'><span>$2v\/\\sqrt3$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5107[]' id='answer-id-20299' class='answer   answerof-5107  ' value='20299'   \/><label for='answer-id-20299' id='answer-label-20299' class=' answer'><span>$v\/\\sqrt3$<\/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-5108'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>11. <\/span><strong>Statement 1:<\/strong> Two particles moving in the same direction do not lose all their energy in a completely inelastic collision.<br \/>\r\n<br \/>\r\n<strong>Statement 2:<\/strong> Principle of conservation of momentum holds true for all kinds of collision.<\/div><input type='hidden' name='question_id[]' id='qID_11' value='5108' class='watupro-question-id'\/><input type='hidden' id='answerType5108' class='answerTypeCnt11' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5108'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5108[]' id='answer-id-20300' class='answer   answerof-5108  ' value='20300'   \/><label for='answer-id-20300' id='answer-label-20300' class=' answer'><span>Statement 1 is true, statement 2 is false<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5108[]' id='answer-id-20301' class='answer   answerof-5108  ' value='20301'   \/><label for='answer-id-20301' id='answer-label-20301' class=' answer'><span>Statement 1 is true; Statement 2 is true. Statement 2 is correct explanation of statement 1. <\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5108[]' id='answer-id-20302' class='answer   answerof-5108  ' value='20302'   \/><label for='answer-id-20302' id='answer-label-20302' class=' answer'><span>Statement 1 is true; Statement 2 is true. Statement 2 is not the correct explanation of statement 1.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5108[]' id='answer-id-20303' class='answer   answerof-5108  ' value='20303'   \/><label for='answer-id-20303' id='answer-label-20303' class=' answer'><span>Statement 1 is false, statement 2 is true.<\/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-5109'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>12. <\/span>A block is kept on an inclined plane of inclination $\\theta$ and length $l$. The velocity of the particle at bottom of the incline (the coefficient of friction is $\\mu$ ) is<\/div><input type='hidden' name='question_id[]' id='qID_12' value='5109' class='watupro-question-id'\/><input type='hidden' id='answerType5109' class='answerTypeCnt12' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5109'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5109[]' id='answer-id-20304' class='answer   answerof-5109  ' value='20304'   \/><label for='answer-id-20304' id='answer-label-20304' class=' answer'><span>$\\sqrt{2gl\\left(\\mu c o s\\theta-sin\\theta\\right)}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5109[]' id='answer-id-20305' class='answer   answerof-5109  ' value='20305'   \/><label for='answer-id-20305' id='answer-label-20305' class=' answer'><span>$\\sqrt{2gl\\left(sin\\theta\\ -\\ \\mu c o s\\theta\\right)}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5109[]' id='answer-id-20306' class='answer   answerof-5109  ' value='20306'   \/><label for='answer-id-20306' id='answer-label-20306' class=' answer'><span>$\\sqrt{2gl\\left(sin\\theta\\ +\\ \\mu c o s\\theta\\right)}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5109[]' id='answer-id-20307' class='answer   answerof-5109  ' value='20307'   \/><label for='answer-id-20307' id='answer-label-20307' class=' answer'><span>$\\sqrt{2gl\\left(cos\\theta+\\mu s i n\\theta\\right)}$<\/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-5110'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>13. <\/span>A bullet hits and gets embedded in a solid block resting on a frictionless surface. In this process which one of the following is correct?<\/div><input type='hidden' name='question_id[]' id='qID_13' value='5110' class='watupro-question-id'\/><input type='hidden' id='answerType5110' class='answerTypeCnt13' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5110'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5110[]' id='answer-id-20308' class='answer   answerof-5110  ' value='20308'   \/><label for='answer-id-20308' id='answer-label-20308' class=' answer'><span>Only momentum is conserved<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5110[]' id='answer-id-20309' class='answer   answerof-5110  ' value='20309'   \/><label for='answer-id-20309' id='answer-label-20309' class=' answer'><span>Only kinetic energy is conserved<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5110[]' id='answer-id-20310' class='answer   answerof-5110  ' value='20310'   \/><label for='answer-id-20310' id='answer-label-20310' class=' answer'><span>Neither momentum nor kinetic energy is conserved.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5110[]' id='answer-id-20311' class='answer   answerof-5110  ' value='20311'   \/><label for='answer-id-20311' id='answer-label-20311' class=' answer'><span>Both momentum and kinetic energy are conserved.<\/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-5111'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>14. <\/span>If a spring extends by $x$ on loading, then the energy stored by the spring is (if $T$ is tension in the spring and $K$ is spring constant)<\/div><input type='hidden' name='question_id[]' id='qID_14' value='5111' class='watupro-question-id'\/><input type='hidden' id='answerType5111' class='answerTypeCnt14' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5111'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5111[]' id='answer-id-20312' class='answer   answerof-5111  ' value='20312'   \/><label for='answer-id-20312' id='answer-label-20312' class=' answer'><span>$T^2\/2x$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5111[]' id='answer-id-20313' class='answer   answerof-5111  ' value='20313'   \/><label for='answer-id-20313' id='answer-label-20313' class=' answer'><span>$T^2\/2k $<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5111[]' id='answer-id-20314' class='answer   answerof-5111  ' value='20314'   \/><label for='answer-id-20314' id='answer-label-20314' class=' answer'><span>$2k\/T^2$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5111[]' id='answer-id-20315' class='answer   answerof-5111  ' value='20315'   \/><label for='answer-id-20315' id='answer-label-20315' class=' answer'><span>$2T^2\/k$<\/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-5112'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>15. <\/span>Which of the following is true<\/div><input type='hidden' name='question_id[]' id='qID_15' value='5112' class='watupro-question-id'\/><input type='hidden' id='answerType5112' class='answerTypeCnt15' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5112'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5112[]' id='answer-id-20316' class='answer   answerof-5112  ' value='20316'   \/><label for='answer-id-20316' id='answer-label-20316' class=' answer'><span>Momentum is conserved in all collisions, but kinetic energy is conserved only in inelastic collisions.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5112[]' id='answer-id-20317' class='answer   answerof-5112  ' value='20317'   \/><label for='answer-id-20317' id='answer-label-20317' class=' answer'><span>Neither momentum nor kinetic energy is conserved in inelastic collisions<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5112[]' id='answer-id-20318' class='answer   answerof-5112  ' value='20318'   \/><label for='answer-id-20318' id='answer-label-20318' class=' answer'><span>Momentum is conserved in all collisions but not kinetic energy<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5112[]' id='answer-id-20319' class='answer   answerof-5112  ' value='20319'   \/><label for='answer-id-20319' id='answer-label-20319' class=' answer'><span>Both momentum and kinetic energy are conserved in all collisions.<\/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-5113'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>16. <\/span>Two particles are seen to collide and move jointly together after the collision, for the total system,<\/div><input type='hidden' name='question_id[]' id='qID_16' value='5113' class='watupro-question-id'\/><input type='hidden' id='answerType5113' class='answerTypeCnt16' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5113'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5113[]' id='answer-id-20320' class='answer   answerof-5113  ' value='20320'   \/><label for='answer-id-20320' id='answer-label-20320' class=' answer'><span>Linear momentum is conserved, but not the mechanical energy<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5113[]' id='answer-id-20321' class='answer   answerof-5113  ' value='20321'   \/><label for='answer-id-20321' id='answer-label-20321' class=' answer'><span>Mechanical energy is conserved, but not the linear momentum<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5113[]' id='answer-id-20322' class='answer   answerof-5113  ' value='20322'   \/><label for='answer-id-20322' id='answer-label-20322' class=' answer'><span>Both the mechanical energy and the linear momentum are conserved<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5113[]' id='answer-id-20323' class='answer   answerof-5113  ' value='20323'   \/><label for='answer-id-20323' id='answer-label-20323' class=' answer'><span>d.\tNeither the mechanical energy nor the linear momentum is conserved<\/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-5114'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>17. <\/span>A ball is bouncing down the flight of stairs. The coefficient of restitution is $e$. The height of each step is d and the ball descends one step each bounce. After each bounce, it rebounds to a height $h$ above the next lower step. The height is large enough compared with the width of step so that the impacts are effectively head-on. Find the relationship between $h$ and $d.<\/div><input type='hidden' name='question_id[]' id='qID_17' value='5114' class='watupro-question-id'\/><input type='hidden' id='answerType5114' class='answerTypeCnt17' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5114'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5114[]' id='answer-id-20324' class='answer   answerof-5114  ' value='20324'   \/><label for='answer-id-20324' id='answer-label-20324' class=' answer'><span>$h=\\frac{d}{1-e}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5114[]' id='answer-id-20325' class='answer   answerof-5114  ' value='20325'   \/><label for='answer-id-20325' id='answer-label-20325' class=' answer'><span>$h=\\frac{d}{1+e^2}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5114[]' id='answer-id-20326' class='answer   answerof-5114  ' value='20326'   \/><label for='answer-id-20326' id='answer-label-20326' class=' answer'><span>$h=\\frac{d}{1+e}$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5114[]' id='answer-id-20327' class='answer   answerof-5114  ' value='20327'   \/><label for='answer-id-20327' id='answer-label-20327' class=' answer'><span>$h=\\sqrt{\\frac{d}{1-e^2}}$<\/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-5115'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>18. <\/span>In the following question, a statement of assertion is followed by a statement of reason.<br \/>\r\n<br \/>\r\n<strong>Assertion:<\/strong> When a body moves along a circular path, no work is done by the centripetal force.<br \/>\r\n<br \/>\r\n<strong>Reason:<\/strong> The centripetal force is used in moving the body along the circular path and hence no work is done.<br \/>\r\n<br \/>\r\nMark the correct choice as<\/div><input type='hidden' name='question_id[]' id='qID_18' value='5115' class='watupro-question-id'\/><input type='hidden' id='answerType5115' class='answerTypeCnt18' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5115'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5115[]' id='answer-id-20328' class='answer   answerof-5115  ' value='20328'   \/><label for='answer-id-20328' id='answer-label-20328' class=' answer'><span>If both assertion and reason are true and reason is the correct explanation of the assertion.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5115[]' id='answer-id-20329' class='answer   answerof-5115  ' value='20329'   \/><label for='answer-id-20329' id='answer-label-20329' class=' answer'><span>If both assertion and reason are true but reason is not correct explanation of the assertion.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5115[]' id='answer-id-20330' class='answer   answerof-5115  ' value='20330'   \/><label for='answer-id-20330' id='answer-label-20330' class=' answer'><span>If assertion is true, but reason is false.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5115[]' id='answer-id-20331' class='answer   answerof-5115  ' value='20331'   \/><label for='answer-id-20331' id='answer-label-20331' class=' answer'><span>If both assertion and reason are 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-5116'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>19. <\/span>In the following question, a statement of assertion is followed by a statement of reason.<br \/>\r\n<br \/>\r\n<strong>Assertion:<\/strong> Mass and energy are not conserved separately, but are conserved as single entity called mass-energy.<br \/>\r\n<br \/>\r\n<strong>Reason:<\/strong> Mass and energy are inter-convertible in accordance with Einstein\u2019s relation, $E=mc^2$<br \/>\r\n<br \/>\r\nMark the correct choice as<\/div><input type='hidden' name='question_id[]' id='qID_19' value='5116' class='watupro-question-id'\/><input type='hidden' id='answerType5116' class='answerTypeCnt19' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5116'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5116[]' id='answer-id-20332' class='answer   answerof-5116  ' value='20332'   \/><label for='answer-id-20332' id='answer-label-20332' class=' answer'><span>If both assertion and reason are true and reason is the correct explanation of the assertion.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5116[]' id='answer-id-20333' class='answer   answerof-5116  ' value='20333'   \/><label for='answer-id-20333' id='answer-label-20333' class=' answer'><span>If both assertion and reason are true but reason is not correct explanation of the assertion.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5116[]' id='answer-id-20334' class='answer   answerof-5116  ' value='20334'   \/><label for='answer-id-20334' id='answer-label-20334' class=' answer'><span>If assertion is true, but reason is false.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5116[]' id='answer-id-20335' class='answer   answerof-5116  ' value='20335'   \/><label for='answer-id-20335' id='answer-label-20335' class=' answer'><span>If both assertion and reason are 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-5117'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>20. <\/span>In the following question, a statement of assertion is followed by a statement of reason.<br \/>\r\n<br \/>\r\n<strong>Assertion:<\/strong> In elastic collision of two billiard balls, the total kinetic energy is conserved during the short time of collision of the balls (i.e., when they are in contact)<br \/>\r\n<br \/>\r\n<strong>Reason:<\/strong> Energy spent against friction does not follow the law of conservation of energy.<br \/>\r\nMark the correct choice as<\/div><input type='hidden' name='question_id[]' id='qID_20' value='5117' class='watupro-question-id'\/><input type='hidden' id='answerType5117' class='answerTypeCnt20' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5117'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5117[]' id='answer-id-20336' class='answer   answerof-5117  ' value='20336'   \/><label for='answer-id-20336' id='answer-label-20336' class=' answer'><span>If both assertion and reason are true and reason is the correct explanation of the assertion.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5117[]' id='answer-id-20337' class='answer   answerof-5117  ' value='20337'   \/><label for='answer-id-20337' id='answer-label-20337' class=' answer'><span>If both assertion and reason are true but reason is not correct explanation of the assertion.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5117[]' id='answer-id-20338' class='answer   answerof-5117  ' value='20338'   \/><label for='answer-id-20338' id='answer-label-20338' class=' answer'><span>If assertion is true, but reason is false.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5117[]' id='answer-id-20339' class='answer   answerof-5117  ' value='20339'   \/><label for='answer-id-20339' id='answer-label-20339' class=' answer'><span>If both assertion and reason are false.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-21' style=';'><div id='questionWrap-21'  class='   watupro-question-id-5118'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>21. <\/span>In the following question, a statement of assertion is followed by a statement of reason.<br \/>\r\n<br \/>\r\n<strong>Assertion:<\/strong> If the momentum of a body is increased by 50%, its kinetic energy will increase by 125%<br \/>\r\n<br \/>\r\n<strong>Reason:<\/strong> Kinetic energy is proportional to square of velocity.<br \/>\r\nMark the correct choice as<\/div><input type='hidden' name='question_id[]' id='qID_21' value='5118' class='watupro-question-id'\/><input type='hidden' id='answerType5118' class='answerTypeCnt21' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices5118'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5118[]' id='answer-id-20340' class='answer   answerof-5118  ' value='20340'   \/><label for='answer-id-20340' id='answer-label-20340' class=' answer'><span>If both assertion and reason are true and reason is the correct explanation of the assertion.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5118[]' id='answer-id-20341' class='answer   answerof-5118  ' value='20341'   \/><label for='answer-id-20341' id='answer-label-20341' class=' answer'><span>If both assertion and reason are true but reason is not correct explanation of the assertion.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5118[]' id='answer-id-20342' class='answer   answerof-5118  ' value='20342'   \/><label for='answer-id-20342' id='answer-label-20342' class=' answer'><span>If assertion is true, but reason is false.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-5118[]' id='answer-id-20343' class='answer   answerof-5118  ' value='20343'   \/><label for='answer-id-20343' id='answer-label-20343' class=' answer'><span>If both assertion and reason are false.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-22'>\n\t<div class='question-content'>\n\t\t<img loading=\"lazy\" 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\t\nvar question_ids = \"5098,5099,5100,5101,5102,5103,5104,5105,5106,5107,5108,5109,5110,5111,5112,5113,5114,5115,5116,5117,5118\";\nWatuPROSettings[290] = {};\nWatuPRO.qArr = question_ids.split(',');\nWatuPRO.exam_id = 290;\t    \nWatuPRO.post_id = 1830;\nWatuPRO.store_progress = 0;\nWatuPRO.curCatPage = 1;\nWatuPRO.requiredIDs=\"0\".split(\",\");\nWatuPRO.hAppID = \"0.06928800 1776527652\";\nvar url = \"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/show_exam.php\";\nWatuPRO.examMode = 1;\nWatuPRO.siteURL=\"https:\/\/physicscatalyst.com\/testprep\/wp-admin\/admin-ajax.php\";\nWatuPRO.emailIsNotRequired = 0;\nWatuPROIntel.init(290);\nWatuPRO.inCategoryPages=1;});    \t \n<\/script>\n\n\n\n\n<hr class=\"wp-block-separator\"\/>\n","protected":false},"excerpt":{"rendered":"<p>This online quiz contains 20 work, energy and power test questions for class 11 physics chapter 6. This mcq online practice problems with answers also has assertion and reason type questions. To evaluate your performance of this chapter try and solve these test questions in stipulated amount of time. This is not a timed test [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[24],"tags":[],"class_list":["post-1830","post","type-post","status-publish","format-standard","hentry","category-class-11-physics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Work Power and Energy Quiz with Answers - MCQ Online Test<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/physicscatalyst.com\/testprep\/class-11-physics\/work-power-and-energy-quiz-with-answers\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Work Power and Energy Quiz with Answers - MCQ Online Test\" \/>\n<meta property=\"og:description\" content=\"This online quiz contains 20 work, energy and power test questions for class 11 physics chapter 6. 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