Sound Class 8 MCQs Questions with Answers

1. The hearing range of human ear is

2. The number of oscillations per second is called

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

4. Vibration is also known as

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

6. Sound cannot travel through

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

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

9. Frequency is expressed in

10. The frequency of subsonic sound is

11. The sound in the audible range is called

12. Sound is a kind of

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

14. 1 hertz is equal to

15. Loudness of sound is determined by

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

17. The voice box is also called as

18. Cochlea is a part of

19. Pitch of sound is determined by its

20. Sound is produced by