Sound Class 8 MCQs Questions with Answers

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

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

3. Frequency is expressed in

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

5. The frequency of subsonic sound is

6. The hearing range of human ear is

7. Sound is a kind of

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

9. Cochlea is a part of

10. Loudness of sound is determined by

11. The sound in the audible range is called

12. The number of oscillations per second is called

13. 1 hertz is equal to

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

15. Sound is produced by

16. Vibration is also known as

17. Sound cannot travel through

18. The voice box is also called as

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

20. Pitch of sound is determined by its