Physics Practice: Sound (Mock Test 1 - Basic)
1. Sound is a form of energy produced by ________ bodies.
2. Sound travels fastest in which of the following media?
3. The maximum displacement of a vibrating particle from its mean position is called:
4. The number of vibrations produced by a body in one second is its:
5. What is the S.I. unit of Frequency?
6. The human ear can hear sounds in the frequency range of:
7. Sounds with frequency less than 20 Hz are called:
8. The loudness of sound depends upon its ________.
9. The pitch of a sound is determined by its ________.
10. The S.I. unit used to measure the level of loudness is:
11. Sound cannot travel through ________.
12. The time taken to complete one vibration is called:
13. Which of the following animals can produce and hear ultrasonic sounds?
14. The speed of sound in air at 0°C is approximately:
15. A shrill sound has a higher ________ compared to a grave (flat) sound.
16. The repetitive reflection of sound from a distant obstacle is known as an:
17. Quality (Timbre) of sound helps us to distinguish between:
18. Unpleasant, loud, and irregular vibrations produce:
19. If the amplitude of a vibration is doubled, the loudness becomes ________ times.
20. The speed of sound ________ with an increase in the temperature of the medium.