Sound Class 8 MCQs Questions with Answers

1. Vibration is also known as

2. Sound is produced by

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

4. 1 hertz is equal to

5. The number of oscillations per second is called

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

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

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

9. Sound cannot travel through

10. The hearing range of human ear is

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

12. Sound is a kind of

13. The frequency of subsonic sound is

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

15. Cochlea is a part of

16. The voice box is also called as

17. Pitch of sound is determined by its

18. Frequency is expressed in

19. Loudness of sound is determined by

20. The sound in the audible range is called