Movement of Sound in the Air

Topic Content:

A sound wave is a simple pressure wave that is caused by the movement or displacement of air molecules. It is a longitudinal wave consisting of a series of compressions and rarefactions.

As sound travels in the air, air particles are pushed together at a slightly higher pressure and air molecules are squeezed together; this region of air particles squeezed together is called compression while air pressure is low at some points which allow the