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Physical Science, 5/e
Bill Tillery, Arizona State University
Wave Motions and Sound

True or False



1

Frequency is the time required for one complete cycle.
A)TRUE
B)FALSE
2

Sounds that move through air are transverse waves.
A)TRUE
B)FALSE
3

Sound travels faster through cold, denser air than through warm, less dense air.
A)TRUE
B)FALSE
4

A sound of 20 dB intensity is twice as loud as one of 10 dB.
A)TRUE
B)FALSE
5

The frequency will sound lower than it actually is when you are moving toward a stationary source of a sound.
A)TRUE
B)FALSE








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