WorksheetsSpeed of Sound
Total questions: 10
Worksheet time: 5mins
1. Which of the following factors does the speed of sound depend?
A. density
B. elasticity
C. temperature
D. all of the above
2. An echo occurs when a sound wave is __________.
A. absorbed
B. reflected
C. refracted
D. transmitted
3. What happens to the speed of sound as the temperature increases?
A. constant
B. decreases
C. increases
D. cannot be determined
4. Which phenomenon explains why sound is heard at longer distances at night
than in day?
A. echolocation
B. reflection
C. refraction
D. reverberation
5. How fast does sound travel if the air temperature is 20 0C?
A. 334 m/s
B. 340 m/s
C. 343 m/s
D. 345 m/s
6. Which of the following is true about the effect of air temperature on the speed of
sound?
A. The lower the temperature the faster the speed.
B. The higher the temperature the faster the speed.
C. The higher the temperature the slower the speed.
D. The temperature does not affect the speed of sound.
7. What is the relationship of temperature to the speed of sound?
A. equal
B. no relationship
C. directly proportional
D. inversely proportional
8. Sound travels faster through warm materials than cold materials because
__________.
A. warm particles move slowly
B. gas particles are packed tightly
C. warm particles are moving quickly
D. sound does not travel faster through a warm substance
9. Ships use echolocation to measure the __________.
A. size of fish
B. area of ocean
C. depth of water
D. density of water
10. When the direction of a wave changes as it passes from one medium to another,
it is called ___________.
A. density
B. echo
C. reflection
D. refraction
