Intensity of sound wave is rate of energy transfer over area¶

The intensity of a sound wave at a surface is a physical quantity defined as the average rate per unit area at which energy is transferred by the wave through or onto the surface.

Links:

Wikipedia, fourth equation.

intensity¶: intensity of the sound wave.

Symbol:: I
Latex:: \(I\)
Dimension:: power/area

power¶: power, or rate of energy transfer, of the wave.

Symbol:: P
Latex:: \(P\)
Dimension:: power

area¶: Surface area.

Symbol:: A
Latex:: \(A\)
Dimension:: area

definition¶

I = P / A

Latex:: \[I = \frac{P}{A}\]