{"id":2772,"date":"2016-09-22T11:43:43","date_gmt":"2016-09-22T04:43:43","guid":{"rendered":"http:\/\/www.giasuquocte.edu.vn\/physics-motion\/"},"modified":"2016-09-22T11:43:43","modified_gmt":"2016-09-22T04:43:43","slug":"physics-motion","status":"publish","type":"post","link":"https:\/\/giasuquocte.edu.vn\/en\/physics-motion\/","title":{"rendered":"Physics &#8211; Motion"},"content":{"rendered":"<div id=\"watu_quiz\" class=\"quiz-area single-page-quiz\">\n<form action=\"\" method=\"post\" class=\"quiz-form \" id=\"quiz-6\" >\n<div class='watu-question' id='question-1'><div class='question-content'><p><span class='watu_num'>1. <\/span>What are the metric units for momentum?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='84' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='455' \/><div class='watu-question-choice'><input type='radio' name='answer-84[]' id='answer-id-455' class='answer answer-1  answerof-84' value='455' \/>&nbsp;<label for='answer-id-455' id='answer-label-455' class=' answer label-1'><span class='answer'>newton<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='454' \/><div class='watu-question-choice'><input type='radio' name='answer-84[]' id='answer-id-454' class='answer answer-1  answerof-84' value='454' \/>&nbsp;<label for='answer-id-454' id='answer-label-454' class=' answer label-1'><span class='answer'>kg \u2022 m\/s2<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='457' \/><div class='watu-question-choice'><input type='radio' name='answer-84[]' id='answer-id-457' class='answer answer-1  answerof-84' value='457' \/>&nbsp;<label for='answer-id-457' id='answer-label-457' class=' answer label-1'><span class='answer'>newton \u2022 m<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='456' \/><div class='watu-question-choice'><input type='radio' name='answer-84[]' id='answer-id-456' class='answer answer-1  answerof-84' value='456' \/>&nbsp;<label for='answer-id-456' id='answer-label-456' class=' answer label-1'><span class='answer'>kg \u2022 m\/s<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType1' value='radio' class=''><\/div><div class='watu-question' id='question-2'><div class='question-content'><p><span class='watu_num'>2. <\/span>According to Newton&#8217;s second law of motion, what causes a change in the motion of an object? A (An)<\/p>\n<\/div><input type='hidden' name='question_id[]' value='79' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='434' \/><div class='watu-question-choice'><input type='radio' name='answer-79[]' id='answer-id-434' class='answer answer-2  answerof-79' value='434' \/>&nbsp;<label for='answer-id-434' id='answer-label-434' class=' answer label-2'><span class='answer'>decrease in inertia.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='435' \/><div class='watu-question-choice'><input type='radio' name='answer-79[]' id='answer-id-435' class='answer answer-2  answerof-79' value='435' \/>&nbsp;<label for='answer-id-435' id='answer-label-435' class=' answer label-2'><span class='answer'>change in velocity.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='437' \/><div class='watu-question-choice'><input type='radio' name='answer-79[]' id='answer-id-437' class='answer answer-2  answerof-79' value='437' \/>&nbsp;<label for='answer-id-437' id='answer-label-437' class=' answer label-2'><span class='answer'>acceleration.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='436' \/><div class='watu-question-choice'><input type='radio' name='answer-79[]' id='answer-id-436' class='answer answer-2  answerof-79' value='436' \/>&nbsp;<label for='answer-id-436' id='answer-label-436' class=' answer label-2'><span class='answer'>net force.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType2' value='radio' class=''><\/div><div class='watu-question' id='question-3'><div class='question-content'><p><span class='watu_num'>3. <\/span>If the forces on an object are balanced, the object will<\/p>\n<\/div><input type='hidden' name='question_id[]' value='75' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='420' \/><div class='watu-question-choice'><input type='radio' name='answer-75[]' id='answer-id-420' class='answer answer-3  answerof-75' value='420' \/>&nbsp;<label for='answer-id-420' id='answer-label-420' class=' answer label-3'><span class='answer'>both A and B<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='421' \/><div class='watu-question-choice'><input type='radio' name='answer-75[]' id='answer-id-421' class='answer answer-3  answerof-75' value='421' \/>&nbsp;<label for='answer-id-421' id='answer-label-421' class=' answer label-3'><span class='answer'>neither A nor B<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='418' \/><div class='watu-question-choice'><input type='radio' name='answer-75[]' id='answer-id-418' class='answer answer-3  answerof-75' value='418' \/>&nbsp;<label for='answer-id-418' id='answer-label-418' class=' answer label-3'><span class='answer'>remain at rest if initially at rest.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='419' \/><div class='watu-question-choice'><input type='radio' name='answer-75[]' id='answer-id-419' class='answer answer-3  answerof-75' value='419' \/>&nbsp;<label for='answer-id-419' id='answer-label-419' class=' answer label-3'><span class='answer'>continue moving in a straight line if initially moving in a straight line.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType3' value='radio' class=''><\/div><div class='watu-question' id='question-4'><div class='question-content'><p><span class='watu_num'>4. <\/span>Which of the following indicate that an object has been subjected to an unbalanced force?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='80' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='441' \/><div class='watu-question-choice'><input type='radio' name='answer-80[]' id='answer-id-441' class='answer answer-4  answerof-80' value='441' \/>&nbsp;<label for='answer-id-441' id='answer-label-441' class=' answer label-4'><span class='answer'>Any of the above.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='439' \/><div class='watu-question-choice'><input type='radio' name='answer-80[]' id='answer-id-439' class='answer answer-4  answerof-80' value='439' \/>&nbsp;<label for='answer-id-439' id='answer-label-439' class=' answer label-4'><span class='answer'>The object slows down.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='438' \/><div class='watu-question-choice'><input type='radio' name='answer-80[]' id='answer-id-438' class='answer answer-4  answerof-80' value='438' \/>&nbsp;<label for='answer-id-438' id='answer-label-438' class=' answer label-4'><span class='answer'>The object speeds up.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='440' \/><div class='watu-question-choice'><input type='radio' name='answer-80[]' id='answer-id-440' class='answer answer-4  answerof-80' value='440' \/>&nbsp;<label for='answer-id-440' id='answer-label-440' class=' answer label-4'><span class='answer'>The object changes direction.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType4' value='radio' class=''><\/div><div class='watu-question' id='question-5'><div class='question-content'><p><span class='watu_num'>5. <\/span>What feature of motion is described by acceleration?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='72' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='407' \/><div class='watu-question-choice'><input type='radio' name='answer-72[]' id='answer-id-407' class='answer answer-5  answerof-72' value='407' \/>&nbsp;<label for='answer-id-407' id='answer-label-407' class=' answer label-5'><span class='answer'>How quickly final velocity is reached.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='406' \/><div class='watu-question-choice'><input type='radio' name='answer-72[]' id='answer-id-406' class='answer answer-5  answerof-72' value='406' \/>&nbsp;<label for='answer-id-406' id='answer-label-406' class=' answer label-5'><span class='answer'>The rate at which speed changes.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='409' \/><div class='watu-question-choice'><input type='radio' name='answer-72[]' id='answer-id-409' class='answer answer-5  answerof-72' value='409' \/>&nbsp;<label for='answer-id-409' id='answer-label-409' class=' answer label-5'><span class='answer'>Whether motion is speeding up or slowing down.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='408' \/><div class='watu-question-choice'><input type='radio' name='answer-72[]' id='answer-id-408' class='answer answer-5  answerof-72' value='408' \/>&nbsp;<label for='answer-id-408' id='answer-label-408' class=' answer label-5'><span class='answer'>The rate at which velocity changes.\t\t<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType5' value='radio' class=''><\/div><div class='watu-question' id='question-6'><div class='question-content'><p><span class='watu_num'>6. <\/span>Which of the following statements correctly states Newton&#8217;s first law of motion?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='73' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='411' \/><div class='watu-question-choice'><input type='radio' name='answer-73[]' id='answer-id-411' class='answer answer-6  answerof-73' value='411' \/>&nbsp;<label for='answer-id-411' id='answer-label-411' class=' answer label-6'><span class='answer'>Every object retains its state of rest or its state of uniform straight-line motion unless acted upon by a balanced force.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='410' \/><div class='watu-question-choice'><input type='radio' name='answer-73[]' id='answer-id-410' class='answer answer-6  answerof-73' value='410' \/>&nbsp;<label for='answer-id-410' id='answer-label-410' class=' answer label-6'><span class='answer'>Every object retains its state of rest or its state of accelerated straight-line motion unless acted upon by an unbalanced force.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='413' \/><div class='watu-question-choice'><input type='radio' name='answer-73[]' id='answer-id-413' class='answer answer-6  answerof-73' value='413' \/>&nbsp;<label for='answer-id-413' id='answer-label-413' class=' answer label-6'><span class='answer'>None of the above is correct.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='412' \/><div class='watu-question-choice'><input type='radio' name='answer-73[]' id='answer-id-412' class='answer answer-6  answerof-73' value='412' \/>&nbsp;<label for='answer-id-412' id='answer-label-412' class=' answer label-6'><span class='answer'>Every object retains its state of rest or its state of uniform straight-line motion unless acted upon by an unbalanced force.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType6' value='radio' class=''><\/div><div class='watu-question' id='question-7'><div class='question-content'><p><span class='watu_num'>7. <\/span>According to Newton&#8217;s second law of motion, acceleration is proportional to force. That means a larger force<\/p>\n<\/div><input type='hidden' name='question_id[]' value='76' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='423' \/><div class='watu-question-choice'><input type='radio' name='answer-76[]' id='answer-id-423' class='answer answer-7  answerof-76' value='423' \/>&nbsp;<label for='answer-id-423' id='answer-label-423' class=' answer label-7'><span class='answer'>doesn&#8217;t affect acceleration.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='425' \/><div class='watu-question-choice'><input type='radio' name='answer-76[]' id='answer-id-425' class='answer answer-7  answerof-76' value='425' \/>&nbsp;<label for='answer-id-425' id='answer-label-425' class=' answer label-7'><span class='answer'>produces a larger acceleration.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='422' \/><div class='watu-question-choice'><input type='radio' name='answer-76[]' id='answer-id-422' class='answer answer-7  answerof-76' value='422' \/>&nbsp;<label for='answer-id-422' id='answer-label-422' class=' answer label-7'><span class='answer'>produces a smaller acceleration.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='424' \/><div class='watu-question-choice'><input type='radio' name='answer-76[]' id='answer-id-424' class='answer answer-7  answerof-76' value='424' \/>&nbsp;<label for='answer-id-424' id='answer-label-424' class=' answer label-7'><span class='answer'>produces a smaller mass.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType7' value='radio' class=''><\/div><div class='watu-question' id='question-8'><div class='question-content'><p><span class='watu_num'>8. <\/span>Which of the following statements are true of both weight and mass?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='77' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='428' \/><div class='watu-question-choice'><input type='radio' name='answer-77[]' id='answer-id-428' class='answer answer-8  answerof-77' value='428' \/>&nbsp;<label for='answer-id-428' id='answer-label-428' class=' answer label-8'><span class='answer'>Heavier objects weigh more than light objects.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='427' \/><div class='watu-question-choice'><input type='radio' name='answer-77[]' id='answer-id-427' class='answer answer-8  answerof-77' value='427' \/>&nbsp;<label for='answer-id-427' id='answer-label-427' class=' answer label-8'><span class='answer'>Mass depends on gravity, weight does not.\t\t<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='426' \/><div class='watu-question-choice'><input type='radio' name='answer-77[]' id='answer-id-426' class='answer answer-8  answerof-77' value='426' \/>&nbsp;<label for='answer-id-426' id='answer-label-426' class=' answer label-8'><span class='answer'>Weight is a force, mass is a measure of inertia.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='429' \/><div class='watu-question-choice'><input type='radio' name='answer-77[]' id='answer-id-429' class='answer answer-8  answerof-77' value='429' \/>&nbsp;<label for='answer-id-429' id='answer-label-429' class=' answer label-8'><span class='answer'>Gravity is necessary to measure both weight and mass.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType8' value='radio' class=''><\/div><div class='watu-question' id='question-9'><div class='question-content'><p><span class='watu_num'>9. <\/span>Which of the following correctly states Newton&#8217;s third law of motion? Forces occur in matched pairs that are<\/p>\n<\/div><input type='hidden' name='question_id[]' value='81' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='444' \/><div class='watu-question-choice'><input type='radio' name='answer-81[]' id='answer-id-444' class='answer answer-9  answerof-81' value='444' \/>&nbsp;<label for='answer-id-444' id='answer-label-444' class=' answer label-9'><span class='answer'>equal in magnitude and opposite in direction.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='443' \/><div class='watu-question-choice'><input type='radio' name='answer-81[]' id='answer-id-443' class='answer answer-9  answerof-81' value='443' \/>&nbsp;<label for='answer-id-443' id='answer-label-443' class=' answer label-9'><span class='answer'>opposite in magnitude and equal in direction.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='442' \/><div class='watu-question-choice'><input type='radio' name='answer-81[]' id='answer-id-442' class='answer answer-9  answerof-81' value='442' \/>&nbsp;<label for='answer-id-442' id='answer-label-442' class=' answer label-9'><span class='answer'>equal in magnitude and equal in direction.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='445' \/><div class='watu-question-choice'><input type='radio' name='answer-81[]' id='answer-id-445' class='answer answer-9  answerof-81' value='445' \/>&nbsp;<label for='answer-id-445' id='answer-label-445' class=' answer label-9'><span class='answer'>opposite in magnitude and opposite in direction.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType9' value='radio' class=''><\/div><div class='watu-question' id='question-10'><div class='question-content'><p><span class='watu_num'>10. <\/span>The conservation of momentum is correctly expressed by which of the following statements? The total momentum of interacting objects<\/p>\n<\/div><input type='hidden' name='question_id[]' value='86' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='464' \/><div class='watu-question-choice'><input type='radio' name='answer-86[]' id='answer-id-464' class='answer answer-10  answerof-86' value='464' \/>&nbsp;<label for='answer-id-464' id='answer-label-464' class=' answer label-10'><span class='answer'>remains the same if there are no external forces.\t<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='463' \/><div class='watu-question-choice'><input type='radio' name='answer-86[]' id='answer-id-463' class='answer answer-10  answerof-86' value='463' \/>&nbsp;<label for='answer-id-463' id='answer-label-463' class=' answer label-10'><span class='answer'>remains the same if there are no internal forces.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='462' \/><div class='watu-question-choice'><input type='radio' name='answer-86[]' id='answer-id-462' class='answer answer-10  answerof-86' value='462' \/>&nbsp;<label for='answer-id-462' id='answer-label-462' class=' answer label-10'><span class='answer'>always remains the same.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='465' \/><div class='watu-question-choice'><input type='radio' name='answer-86[]' id='answer-id-465' class='answer answer-10  answerof-86' value='465' \/>&nbsp;<label for='answer-id-465' id='answer-label-465' class=' answer label-10'><span class='answer'>usually remains the same.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType10' value='radio' class=''><\/div><div class='watu-question' id='question-11'><div class='question-content'><p><span class='watu_num'>11. <\/span>In order for an object to move in a circular path at a constant speed, which set of conditions must be satisfied?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='88' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='472' \/><div class='watu-question-choice'><input type='radio' name='answer-88[]' id='answer-id-472' class='answer answer-11  answerof-88' value='472' \/>&nbsp;<label for='answer-id-472' id='answer-label-472' class=' answer label-11'><span class='answer'>A force must be applied continuously at right angles to the object&#8217;s motion to produce a circular path.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='470' \/><div class='watu-question-choice'><input type='radio' name='answer-88[]' id='answer-id-470' class='answer answer-11  answerof-88' value='470' \/>&nbsp;<label for='answer-id-470' id='answer-label-470' class=' answer label-11'><span class='answer'>A force must be applied once to start circular motion, then the object will continue in a circular path.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='473' \/><div class='watu-question-choice'><input type='radio' name='answer-88[]' id='answer-id-473' class='answer answer-11  answerof-88' value='473' \/>&nbsp;<label for='answer-id-473' id='answer-label-473' class=' answer label-11'><span class='answer'>No force need be applied since speed remains constant.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='471' \/><div class='watu-question-choice'><input type='radio' name='answer-88[]' id='answer-id-471' class='answer answer-11  answerof-88' value='471' \/>&nbsp;<label for='answer-id-471' id='answer-label-471' class=' answer label-11'><span class='answer'>A force must be applied continuously against the object&#8217;s motion to cause it to turn away into a circular path.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType11' value='radio' class=''><\/div><div class='watu-question' id='question-12'><div class='question-content'><p><span class='watu_num'>12. <\/span>A person walking on a level surface moves forward because the forces of<\/p>\n<\/div><input type='hidden' name='question_id[]' value='82' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='447' \/><div class='watu-question-choice'><input type='radio' name='answer-82[]' id='answer-id-447' class='answer answer-12  answerof-82' value='447' \/>&nbsp;<label for='answer-id-447' id='answer-label-447' class=' answer label-12'><span class='answer'>his feet pushing backward on the ground.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='448' \/><div class='watu-question-choice'><input type='radio' name='answer-82[]' id='answer-id-448' class='answer answer-12  answerof-82' value='448' \/>&nbsp;<label for='answer-id-448' id='answer-label-448' class=' answer label-12'><span class='answer'>the ground pushing forward on his feet.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='446' \/><div class='watu-question-choice'><input type='radio' name='answer-82[]' id='answer-id-446' class='answer answer-12  answerof-82' value='446' \/>&nbsp;<label for='answer-id-446' id='answer-label-446' class=' answer label-12'><span class='answer'>his feet pushing forward on the ground.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='449' \/><div class='watu-question-choice'><input type='radio' name='answer-82[]' id='answer-id-449' class='answer answer-12  answerof-82' value='449' \/>&nbsp;<label for='answer-id-449' id='answer-label-449' class=' answer label-12'><span class='answer'>the ground pushing backward on his feet<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType12' value='radio' class=''><\/div><div class='watu-question' id='question-13'><div class='question-content'><p><span class='watu_num'>13. <\/span>If an astronaut, freely floating in space, tries to throw away a spent fuel container that has the same mass as the astronaut himself, what will happen to the astronaut?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='87' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='468' \/><div class='watu-question-choice'><input type='radio' name='answer-87[]' id='answer-id-468' class='answer answer-13  answerof-87' value='468' \/>&nbsp;<label for='answer-id-468' id='answer-label-468' class=' answer label-13'><span class='answer'>The astronaut moves away in an opposite direction just as fast as the container moves.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='469' \/><div class='watu-question-choice'><input type='radio' name='answer-87[]' id='answer-id-469' class='answer answer-13  answerof-87' value='469' \/>&nbsp;<label for='answer-id-469' id='answer-label-469' class=' answer label-13'><span class='answer'>Nothing happens to the astronaut or container. The astronaut cannot throw the container since he has no firm ground to stand on.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='467' \/><div class='watu-question-choice'><input type='radio' name='answer-87[]' id='answer-id-467' class='answer answer-13  answerof-87' value='467' \/>&nbsp;<label for='answer-id-467' id='answer-label-467' class=' answer label-13'><span class='answer'>The astronaut will recoil slightly but quickly stop while the container continues moving away at a constant speed.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='466' \/><div class='watu-question-choice'><input type='radio' name='answer-87[]' id='answer-id-466' class='answer answer-13  answerof-87' value='466' \/>&nbsp;<label for='answer-id-466' id='answer-label-466' class=' answer label-13'><span class='answer'>Nothing happens to the astronaut. He will stay where he is and the container will fly away at the speed given to it by the astronaut.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType13' value='radio' class=''><\/div><div class='watu-question' id='question-14'><div class='question-content'><p><span class='watu_num'>14. <\/span>In Newton&#8217;s second law of motion, what is the relationship between acceleration and mass? Acceleration<\/p>\n<\/div><input type='hidden' name='question_id[]' value='85' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='461' \/><div class='watu-question-choice'><input type='radio' name='answer-85[]' id='answer-id-461' class='answer answer-14  answerof-85' value='461' \/>&nbsp;<label for='answer-id-461' id='answer-label-461' class=' answer label-14'><span class='answer'>is divided by mass.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='458' \/><div class='watu-question-choice'><input type='radio' name='answer-85[]' id='answer-id-458' class='answer answer-14  answerof-85' value='458' \/>&nbsp;<label for='answer-id-458' id='answer-label-458' class=' answer label-14'><span class='answer'>is directly proportional to mass.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='460' \/><div class='watu-question-choice'><input type='radio' name='answer-85[]' id='answer-id-460' class='answer answer-14  answerof-85' value='460' \/>&nbsp;<label for='answer-id-460' id='answer-label-460' class=' answer label-14'><span class='answer'>does not depend on mass.\t<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='459' \/><div class='watu-question-choice'><input type='radio' name='answer-85[]' id='answer-id-459' class='answer answer-14  answerof-85' value='459' \/>&nbsp;<label for='answer-id-459' id='answer-label-459' class=' answer label-14'><span class='answer'>is inversely proportional to mass.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType14' value='radio' class=''><\/div><div class='watu-question' id='question-15'><div class='question-content'><p><span class='watu_num'>15. <\/span>Which pair of variables defines motion?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='69' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='394' \/><div class='watu-question-choice'><input type='radio' name='answer-69[]' id='answer-id-394' class='answer answer-15  answerof-69' value='394' \/>&nbsp;<label for='answer-id-394' id='answer-label-394' class=' answer label-15'><span class='answer'>speed and distance<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='396' \/><div class='watu-question-choice'><input type='radio' name='answer-69[]' id='answer-id-396' class='answer answer-15  answerof-69' value='396' \/>&nbsp;<label for='answer-id-396' id='answer-label-396' class=' answer label-15'><span class='answer'>change of position and passage of time\t<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='395' \/><div class='watu-question-choice'><input type='radio' name='answer-69[]' id='answer-id-395' class='answer answer-15  answerof-69' value='395' \/>&nbsp;<label for='answer-id-395' id='answer-label-395' class=' answer label-15'><span class='answer'>time and momentum\t<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='397' \/><div class='watu-question-choice'><input type='radio' name='answer-69[]' id='answer-id-397' class='answer answer-15  answerof-69' value='397' \/>&nbsp;<label for='answer-id-397' id='answer-label-397' class=' answer label-15'><span class='answer'>speed and passage of time<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType15' value='radio' class=''><\/div><div class='watu-question' id='question-16'><div class='question-content'><p><span class='watu_num'>16. <\/span>Which statement correctly characterizes momentum, as understood in the physical sciences?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='83' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='450' \/><div class='watu-question-choice'><input type='radio' name='answer-83[]' id='answer-id-450' class='answer answer-16  answerof-83' value='450' \/>&nbsp;<label for='answer-id-450' id='answer-label-450' class=' answer label-16'><span class='answer'>Momentum is a measure of an object&#8217;s tendency to continue moving.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='451' \/><div class='watu-question-choice'><input type='radio' name='answer-83[]' id='answer-id-451' class='answer answer-16  answerof-83' value='451' \/>&nbsp;<label for='answer-id-451' id='answer-label-451' class=' answer label-16'><span class='answer'>An object with a large momentum has a large mass.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='453' \/><div class='watu-question-choice'><input type='radio' name='answer-83[]' id='answer-id-453' class='answer answer-16  answerof-83' value='453' \/>&nbsp;<label for='answer-id-453' id='answer-label-453' class=' answer label-16'><span class='answer'>The product of mass and velocity is large for an object with a large momentum.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='452' \/><div class='watu-question-choice'><input type='radio' name='answer-83[]' id='answer-id-452' class='answer answer-16  answerof-83' value='452' \/>&nbsp;<label for='answer-id-452' id='answer-label-452' class=' answer label-16'><span class='answer'>An object with a large momentum has a large velocity.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType16' value='radio' class=''><\/div><div class='watu-question' id='question-17'><div class='question-content'><p><span class='watu_num'>17. <\/span>The term inertia means which of the following? The tendency of an object to<\/p>\n<\/div><input type='hidden' name='question_id[]' value='74' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='417' \/><div class='watu-question-choice'><input type='radio' name='answer-74[]' id='answer-id-417' class='answer answer-17  answerof-74' value='417' \/>&nbsp;<label for='answer-id-417' id='answer-label-417' class=' answer label-17'><span class='answer'>stop the motion of other objects.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='416' \/><div class='watu-question-choice'><input type='radio' name='answer-74[]' id='answer-id-416' class='answer answer-17  answerof-74' value='416' \/>&nbsp;<label for='answer-id-416' id='answer-label-416' class=' answer label-17'><span class='answer'>remain in rest or motion.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='415' \/><div class='watu-question-choice'><input type='radio' name='answer-74[]' id='answer-id-415' class='answer answer-17  answerof-74' value='415' \/>&nbsp;<label for='answer-id-415' id='answer-label-415' class=' answer label-17'><span class='answer'>remain in motion.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='414' \/><div class='watu-question-choice'><input type='radio' name='answer-74[]' id='answer-id-414' class='answer answer-17  answerof-74' value='414' \/>&nbsp;<label for='answer-id-414' id='answer-label-414' class=' answer label-17'><span class='answer'>maintain its mass.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType17' value='radio' class=''><\/div><div class='watu-question' id='question-18'><div class='question-content'><p><span class='watu_num'>18. <\/span>Which two fundamental properties are used to describe motion?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='70' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='401' \/><div class='watu-question-choice'><input type='radio' name='answer-70[]' id='answer-id-401' class='answer answer-18  answerof-70' value='401' \/>&nbsp;<label for='answer-id-401' id='answer-label-401' class=' answer label-18'><span class='answer'>distance and speed<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='399' \/><div class='watu-question-choice'><input type='radio' name='answer-70[]' id='answer-id-399' class='answer answer-18  answerof-70' value='399' \/>&nbsp;<label for='answer-id-399' id='answer-label-399' class=' answer label-18'><span class='answer'>length and time<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='398' \/><div class='watu-question-choice'><input type='radio' name='answer-70[]' id='answer-id-398' class='answer answer-18  answerof-70' value='398' \/>&nbsp;<label for='answer-id-398' id='answer-label-398' class=' answer label-18'><span class='answer'>mass and distance<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='400' \/><div class='watu-question-choice'><input type='radio' name='answer-70[]' id='answer-id-400' class='answer answer-18  answerof-70' value='400' \/>&nbsp;<label for='answer-id-400' id='answer-label-400' class=' answer label-18'><span class='answer'>speed and time<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType18' value='radio' class=''><\/div><div class='watu-question' id='question-19'><div class='question-content'><p><span class='watu_num'>19. <\/span>What is the unit of weight in the metric system?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='78' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='433' \/><div class='watu-question-choice'><input type='radio' name='answer-78[]' id='answer-id-433' class='answer answer-19  answerof-78' value='433' \/>&nbsp;<label for='answer-id-433' id='answer-label-433' class=' answer label-19'><span class='answer'>meters per second squared<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='432' \/><div class='watu-question-choice'><input type='radio' name='answer-78[]' id='answer-id-432' class='answer answer-19  answerof-78' value='432' \/>&nbsp;<label for='answer-id-432' id='answer-label-432' class=' answer label-19'><span class='answer'>pound<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='431' \/><div class='watu-question-choice'><input type='radio' name='answer-78[]' id='answer-id-431' class='answer answer-19  answerof-78' value='431' \/>&nbsp;<label for='answer-id-431' id='answer-label-431' class=' answer label-19'><span class='answer'>newton<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='430' \/><div class='watu-question-choice'><input type='radio' name='answer-78[]' id='answer-id-430' class='answer answer-19  answerof-78' value='430' \/>&nbsp;<label for='answer-id-430' id='answer-label-430' class=' answer label-19'><span class='answer'>kilogram<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType19' value='radio' class=''><\/div><div class='watu-question' id='question-20'><div class='question-content'><p><span class='watu_num'>20. <\/span>What is a difference between an object&#8217;s speed and velocity?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='71' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='402' \/><div class='watu-question-choice'><input type='radio' name='answer-71[]' id='answer-id-402' class='answer answer-20  answerof-71' value='402' \/>&nbsp;<label for='answer-id-402' id='answer-label-402' class=' answer label-20'><span class='answer'>Speed includes direction as well as the rate of travel.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='405' \/><div class='watu-question-choice'><input type='radio' name='answer-71[]' id='answer-id-405' class='answer answer-20  answerof-71' value='405' \/>&nbsp;<label for='answer-id-405' id='answer-label-405' class=' answer label-20'><span class='answer'>There is no difference.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='403' \/><div class='watu-question-choice'><input type='radio' name='answer-71[]' id='answer-id-403' class='answer answer-20  answerof-71' value='403' \/>&nbsp;<label for='answer-id-403' id='answer-label-403' class=' answer label-20'><span class='answer'>Velocity includes time during which travel occurred.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='404' \/><div class='watu-question-choice'><input type='radio' name='answer-71[]' id='answer-id-404' class='answer answer-20  answerof-71' value='404' \/>&nbsp;<label for='answer-id-404' id='answer-label-404' class=' answer label-20'><span class='answer'>Velocity includes the direction of travel whereas speed does not.<\/span><\/label><\/div>\n<\/div><input type='hidden' id='questionType20' value='radio' class=''><\/div><div style='display:none' id='question-21'><br \/><div class='question-content'><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/giasuquocte.edu.vn\/wp-content\/plugins\/watu\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading ...\" title=\"Loading ...\" \/>&nbsp;Loading &#8230;<\/div><\/div><br \/>\n<input type=\"button\" name=\"action\" onclick=\"Watu.submitResult()\" id=\"action-button\" value=\"Submit\"  class=\"watu-submit-button\" \/>\n<input type=\"hidden\" name=\"no_ajax\" value=\"0\"><input type=\"hidden\" name=\"quiz_id\" value=\"6\" \/>\n<input type=\"hidden\" id=\"watuStartTime\" 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