Sound Class 8 MCQs Questions with Answers

1. The maximum displacement of a body from its mean position is called

2. Sound is produced by

3. The hearing range of human ear is

4. 1 hertz is equal to

5. Cochlea is a part of

6. The sound in the audible range is called

7. Pitch of sound is determined by its

8. The voice box is also called as

9. The velocity of sound at 20°C is approximately

10. The number of vibrations made by a vibrating body in one second is

11. A pendulum oscillates 20 times in 4 seconds. Find its time period.

12. The frequency of subsonic sound is

13. Sound cannot travel through

14. Voice of man is heavy compared to a woman because

15. Loudness of sound is determined by

16. When the amplitude of vibration is large, sound produced is

17. Frequency is expressed in

18. Vibration is also known as

19. The number of oscillations per second is called

20. Sound is a kind of