Sound Class 8 MCQs Questions with Answers

1. Cochlea is a part of

2. Loudness of sound is determined by

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

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

5. The frequency of subsonic sound is

6. Sound is a kind of

7. The sound in the audible range is called

8. Vibration is also known as

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

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

11. Sound cannot travel through

12. Pitch of sound is determined by its

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

14. Sound is produced by

15. Frequency is expressed in

16. 1 hertz is equal to

17. The number of oscillations per second is called

18. The hearing range of human ear is

19. The voice box is also called as

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