Question

The distance between one point on a compression and the corresponding point on the next compression in a sound wave is called a

Answer 1

Its called the wavelength!

Answer 2

It is called "wavelength".

In fact, the wavelength is defined as the distance between two consecutive crests of a wave. In the case of a speed wave, we can see the compression points as the crests of the wave, so the distance between two consecutive compression points corresponds to the wavelength.