Interactions with Sound Waves

Superposition occurs when two waves occupy the same point (the wave at this point is found by adding the two amplitudes of the waves).

Interference occurs when multiple waves interact with each other, and is a change in amplitude caused by several waves meeting.

The superposition of two waves of similar but not identical frequencies produces a pulsing known as a beat.

The ear is the sensory organ that picks up sound waves from the air and turns them into nerve impulses that can be sent to the brain.

Sound waves reflect off different materials differently (when the reflections are collected, they can provide information and images).