Sound Class 8 MCQs Questions with Answers

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

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

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

4. 1 hertz is equal to

5. Loudness of sound is determined by

6. The voice box is also called as

7. Sound cannot travel through

8. Sound is produced by

9. Sound is a kind of

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

11. Frequency is expressed in

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

13. Vibration is also known as

14. Cochlea is a part of

15. The number of oscillations per second is called

16. Pitch of sound is determined by its

17. The hearing range of human ear is

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

19. The sound in the audible range is called

20. The frequency of subsonic sound is