Sound Wave MCQs Quiz Multiple Choice Questions & Answers

1. When a wave travels through a medium ______.

1. energy is transferred at a constant speed
2. energy is transferred in a periodic manner
3. particles are transferred from one place to another
4. none of these

2. Bats detect the obstacles in their path by receiving the reflected ______.

1. radio waves
2. ultrasonic waves
3. electromagnetic waves
4. infrasonic waves

3. The minimum distance between the source and the reflector, so that an echo is heard is approximately

1. 12 m
2. 15 m
3. 17 m
4. 21 m

4. When sound travels through air, the air particles ______.

1. do not vibrate
2. vibrate but not in any fixed direction
3. vibrate perpendicular to the direction of wave propagation
4. vibrate along the direction of wave propagation

5. Sound waves do not travel through

1. vacuum
2. soild
3. liquid
4. gases

6. Sound waves are _________________ in nature

1. longitudinal
2. transverse
3. partly longitudinal and partly transverse
4. sometimes longitudinal and sometimes transverse

7. The amplitude of a wave is ______.

1. the distance the wave moves in one second
2. the maximum distance moved by the medium particles on either side of the mean position
3. the distance the wave moves in one time period of the wave
4. the distance equal to one wave length

8. The speed of sound in medium depends upon

1. frequency
2. amplitude
3. wavelength
4. properties of the medium

9. Which of the following will remain unchanged when a sound wave travels in air or in water?

1. frequency
2. wavelength
3. amplitude
4. speed

10. _______________ is an example for mechanical wave.

1. radio wave
2. light wave
3. sound wave
4. infrared wave

11. Which of the following quantities is transferred during wave propagation?

1. speed
2. mass
3. energy
4. matter

12. A sound wave is produced when an object

1. accelerates
2. decelerates
3. vibrates
4. remains stationary

13. The wavelength of a wave is measured in

1. metres
2. hertz
3. seconds
4. decibels

14. An echo occurs when a sound wave is

1. absorbed
2. transmitted
3. refracted
4. reflected

15. Another name for the unit Hertz is

1. cycles per second
2. seconds per cycle
3. metres per second
4. decibels

16. Sound travels fastest in

1. a vacuum
2. the sea
3. the atmosphere
4. a broom stick

17. Which of the following does not describe a sound wave?

1. transverse wave
2. longitudinal wave
3. compression wave
4. push-pull wave

18. An animal that can hear sound frequencies higher than a human child is

1. a human adult
2. a cod fish
3. a bat
4. an eagle

19. Hitting a drum harder makes the sound

1. higher
2. lower
3. louder
4. softer

20. The part of the ear that responds to sound waves like a microphones diaphragm is the

1. lobe
2. eardrum
3. bones of the middle ear
4. fluid in the inner ear

21. Sounds above 20000Hz are called

1. ultracool
2. ultrasound
3. infra-audio
4. infrasound

22. Sound can travel through?

1. Only Gases
2. Only Solids
3. Only Liquids
4. In solids, liquid and gases

23. Which of the following voices is likely to have a minimum frequency?

1. Baby Boy
2. Baby Gir
3. A Man
4. A Women