Sound Class 8 MCQs Questions with Answers

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

2. Sound is a kind of

3. Cochlea is a part of

4. The frequency of subsonic sound is

5. 1 hertz is equal to

6. The sound in the audible range is called

7. Pitch of sound is determined by its

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

9. Frequency is expressed in

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

11. The voice box is also called as

12. Loudness of sound is determined by

13. Sound cannot travel through

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

15. The number of oscillations per second is called

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

17. Vibration is also known as

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

19. Sound is produced by

20. The hearing range of human ear is