Sound Class 8 MCQs Questions with Answers

1. Vibration is also known as

2. 1 hertz is equal to

3. Sound cannot travel through

4. Loudness of sound is determined by

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

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

7. The hearing range of human ear is

8. Sound is produced by

9. The number of oscillations per second is called

10. The sound in the audible range is called

11. Cochlea is a part of

12. Frequency is expressed in

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

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

15. The frequency of subsonic sound is

16. Sound is a kind of

17. The voice box is also called as

18. Pitch of sound is determined by its

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

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