Energy Sources and Transfer of Energy – Online MCQs Test – Physics 9th

1. A body of mass 1kg is lifted through a height of 1m. The energy possessed in the body will be _________. (consider g = 10ms^-2)

2. Wood, organic material, garbage and sugarcane are sources of:

3. Unit of power is:

4. Which one of the following has no unit?

5. When a force makes something move, in Physics, it is called:

6. The S.I unit of energy is:

7. The energy released during fission or fusion reaction is called ____________.

8. Coal, gas and oil are all examples of _________.

9. The ratio of output to input is called

10. The ability to do work is defined as:

11. Mathematically potential energy is given as:

12. This kind of energy is stored in the Earth as its natural heat.

13. Water stored in a dam is an example of:

14. If a body of mass 1 kg is moving with velocity of 1m/sec then K.E of the body will be ____________.

15. Efficiency is :

16. If force of 6N displaces an object 2m in the direction of force, then work done will be __________.

17. The amount of energy transferred per unit time is called as:

18. 1 hp = __________

19. If a machine performs 20J of work in 10sec then its power is ____________.

20. Which is the renewable source of energy