a.
1. Sounds are caused by
a. distance
b. elasticity
c. wavelength
d. vibrations
2. Sound waves travel faster in
gases
b.. liquid
C. solid
d. both liquid and solid
3.
It is the ability of a material to return to its original form after a certain amount of force has been applied.
a. elasticity
b. frequency
c. magnitude
d. malleability
4. Which factor does not affect the speed of sound?
a. density
b. distance
c. elasticity
d. temperature
5.
Is usually described as the turning back of the wave as it hits a barrier.
a. reverberation b. reflection
c. refraction
d. cannot be determined
. The
of sound involves a change in the direction of waves as they pass from one medium to
another.
a. echolocation b. reflection
c. refraction
d. reverberation
An echo occurs where a sound wave is
a. Absorbed
b. reflected
C. refracted
d. transmitted
What happens to the speed of sound when it travels in warmer objects?
a. Constant
b. faster
c. slower
d. cannot be determined
What is the relationship of temperature to the speed of sound?
a. Equal
b. no relationship c. directly proportional d. inversely proportional
9. 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.​