Sound Class 8 MCQs Questions with Answers

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

2. The hearing range of human ear is

3. Sound cannot travel through

4. The number of oscillations per second is called

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

6. The voice box is also called as

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

8. Vibration is also known as

9. Cochlea is a part of

10. 1 hertz is equal to

11. Loudness of sound is determined by

12. Frequency is expressed in

13. Pitch of sound is determined by its

14. Sound is produced by

15. Sound is a kind of

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

17. The frequency of subsonic sound is

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

19. The sound in the audible range is called

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