1. Which of the following is a renewable energy source?
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Chapter 6: Work and Energy
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Question 1 of 27
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2. When a body falls freely, its potential energy is converted into:
3. Energy stored due to height is called:
4. The SI unit of power is:
5. If more work is done in less time, power will be:
6. Energy obtained from flowing water is called:
7. Efficiency of a machine is always:
8. A machine that works without energy loss is called:
9. Which of the following is a form of energy?
10. Energy losses mainly occur due to:
11. Which energy source is non-renewable?
12. Which unit is used for energy?
13. According to conservation of energy, total energy remains:
14. Which law states that energy cannot be created or destroyed?
15. Which formula represents work done?
16. If force is applied but no displacement occurs, the work done is:
17. Energy possessed by a moving object is called:
18. Power is defined as:
19. Kinetic energy depends on:
20. What is meant by work done in physics?
21. The SI unit of work is:
22. Perpetual motion machines are impossible because they violate:
23. Efficiency is the ratio of:
24. Gravitational potential energy depends on:
25. Which energy source causes air pollution?
26. Energy is defined as:
27. Which object has maximum kinetic energy?