When a sine wave is used to represent a sound wave, the crest corresponds to:
A) rarefaction.
B) condensation.
C) a point where molecules vibrate at a right angle to the direction of wave travel.
D) a region of low elasticity.

Question

Quizplus · Accepted Answer

The crest of a sine wave representing a sound wave corresponds to condensation, which is a region of higher pressure where air molecules are compressed.

When a Sine Wave Is Used to Represent a Sound