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ISSB Initial Tests - Academic Test - Physics - Power Work And Energy - Quiz 2

Practice 10 high yield MCQs on Physics from Chapter Power Work And Energy for Academic Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 2 of the series.

11. Power is defined as the rate of doing work. Its SI unit is:



12. If a force F moves an object with velocity v, the instantaneous power is:



13. A force of 10 N moves a body 5 m in the direction of the force. The work done is:



14. A mass of 2 kg is lifted to a height of 3 m. The work done against gravity is (g=10 m/s²):



15. A body of mass 5 kg is moving with a speed of 4 m/s. Its kinetic energy is:



16. If the speed of a body is doubled, its kinetic energy becomes:



17. The total mechanical energy of a system is conserved in the absence of:



18. A ball is thrown vertically upward. At the highest point, its kinetic energy is:



19. A spring of spring constant 200 N/m is compressed by 0.1 m. The potential energy stored is:



20. The work done by a conservative force is independent of:



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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