Sound Class 8 MCQs Questions with Answers

1. The sound in the audible range is called

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

3. Pitch of sound is determined by its

4. The hearing range of human ear is

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

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

7. The number of oscillations per second is called

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

9. Sound is a kind of

10. The frequency of subsonic sound is

11. Sound is produced by

12. Frequency is expressed in

13. The voice box is also called as

14. Cochlea is a part of

15. 1 hertz is equal to

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

17. Sound cannot travel through

18. Vibration is also known as

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

20. Loudness of sound is determined by