Choices:
vibrate
hear
vibrating
high
solid
hertz
low
liquid
light
amplitudes
quiet
hertz
vacuum
slower


Sounds are produced by objects that are 1.____
Objects that 2._____
quickly produce 3.____
pitched sounds. Object that 4.____
slowly
produce 5._____ pitched sounds. We measure the frequency of a sound in 6.____
Objects that vibrate with large 7._____
produce loud sounds. Objects
that vibrate with small 8._____
produce 9.____
sounds, Sound can travel
through 10
11._____
and gases but not through 12.____
Sound waves travel 13._____
that light waves. This is the reason we see
14.______
before we 15.______
the thunder,
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