Sound Class 8 MCQs Questions with Answers

1. Sound is produced by

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

3. The number of oscillations per second is called

4. Sound is a kind of

5. 1 hertz is equal to

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

7. Loudness of sound is determined by

8. Pitch of sound is determined by its

9. Vibration is also known as

10. The voice box is also called as

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

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

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

14. Frequency is expressed in

15. The frequency of subsonic sound is

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

17. Cochlea is a part of

18. Sound cannot travel through

19. The sound in the audible range is called

20. The hearing range of human ear is