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Pitch

The number of compressions or rarefactions per unit time. Directly proportional to

frequency.

Representation of low and high pitch

Loudness

Volume or loudness of a sound depends on the amplitude. The force with which an
object is made to vibrate gives the loudness.

Higher force → higher amplitude → louder sound

The amount of sound energy flowing per unit time through a unit area is called the

intensity of sound.