1-regions in a longitudinal wave where the particles of the medium are squeezed together are called compressions.
true
false
2-the sound from two identical sound producers will sound twice as loud as that from just one.
true
false
3-the flash from a camera is an example of a continuous wave.
true
false
4-sound cannot travel through solid steel.
true
false
5-reverberation can both inhibit conversation and enhance music.
true
false
6-the vocal cords are used to make all sounds that are produced in human speech.
true
false
7-two sound waves travelling through the air have different frequencies. consequently, they must also have different: (select all that apply)
wavelengths
speeds
amplitudes
8-what can affect the frequency of a wave? (select all that apply)
diffraction
doppler effect
interference
9-a stationary lawnmower produces a steady sound in an open field.
if a listener moves to a distance one-half as far away from the mower, the amplitude of the sound would be
one-half as large
four times as large
twice as large
one-fourth as large