Physics Practice: Energy (Mock Test 1 - Basic)
1. The capacity to do work is called:
2. The SI unit of energy is the same as that of work, which is:
3. Mechanical energy is the sum of:
4. Energy possessed by a body due to its motion is:
5. A stone resting on the roof of a building possesses:
6. When we wind a watch spring, we store ________ energy in it.
7. The energy stored in food and fuels is:
8. An electric bulb converts electrical energy primarily into:
9. According to the Law of Conservation of Energy, energy can neither be created nor ________.
10. A battery converts ________ energy into electrical energy.
11. The commercial unit of electrical energy is:
12. Plants use solar energy to make food through:
13. A loudspeaker converts:
14. Kinetic energy depends on the mass and the ________ of the body.
15. Solar cells (Photovoltaic cells) convert sunlight directly into:
16. Non-renewable sources of energy include:
17. $1 \text{ calorie}$ is approximately equal to:
18. The main source of energy for the Earth is:
19. Burning of wood is an example of conversion of chemical energy into:
20. Hydroelectric power is generated using the ________ energy of flowing water.