GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When the speed of an object is doubled, its momentum
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remains unchanged in accord with the conservation of momentum.
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doubles
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quadruples
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decreases
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Explanation:
Detailed explanation-1: -The correct option is C Doubled.
Detailed explanation-2: -If the velocity of a body is doubled then its momentum doubles because velocity is directly proportional to momentum.
Detailed explanation-3: -As the velocity of the object is doubled the momentum of the object also gets doubled.
Detailed explanation-4: -Kinetic energy depends on the velocity of the object squared. This means that when the velocity of an object doubles, its kinetic energy quadruples.
Detailed explanation-5: -Momentum of an object of the mass is directly proportional to the velocity. When momentum is doubled, mass remain constant, this means velocity is doubled. The kinetic energy becomes 4 times.
There is 1 question to complete.