Sound Class 8 MCQs Questions with Answers

1. Cochlea is a part of

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

3. The number of oscillations per second is called

4. The frequency of subsonic sound is

5. Pitch of sound is determined by its

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

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

8. Frequency is expressed in

9. 1 hertz is equal to

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

11. Sound cannot travel through

12. The sound in the audible range is called

13. The hearing range of human ear is

14. The voice box is also called as

15. Sound is a kind of

16. Vibration is also known as

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

18. Loudness of sound is determined by

19. Sound is produced by

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