Question

Explain why sound waves can be described as pressure waves. explain in brief with example.

Explain why sound waves can be described as pressure waves. explain in brief with example.

Homework Answers

Answer #1

Sound wave consists of a repeating pattern of high-pressure and low-pressure regions moving through a medium, so it also
described as pressure wave.
If a detector, whether it is the human ear
or man-made instrument, were used to
detect a sound wave, it would detect
fluctuations in pressure as the sound wave
impinges upon the detecting device. At one
instant in time, the detector would detect a high pressure; this would correspond to the arrival of a compression at the detector site. At the next instant in time, the detector m
detect normal pressure. And then finally a
low pressure would be detected, correspond
to the arrival of a rarefaction at the detector site. The fluctuations in pressure as detected by the detector occur at periodic and  
regular time intervals.

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