The changes in pressure caused when molecules of air or fluid collide with one another and then move apart again are called __________.
A)hertz
B)sound waves
C)decibels
D)pitch

Question

Quizplus · Accepted Answer

The changes in pressure caused by the collision and movement of particles create sound waves, which are a type of wave that can be perceived by the human ear. Hertz, decibels, and pitch are all related to sound waves, but do not directly refer to the changes in pressure caused by particle collisions.

The Changes in Pressure Caused When Molecules of Air or Fluid