Amplitude

Definition

Amplitude represents the maximum displacement from equilibrium or zero point in a periodic function. It measures the strength or intensity of a wave.

Related terms

Crest and Trough: In wave phenomena, crests are the highest points above equilibrium, while troughs are the lowest points below equilibrium.

Intensity: Intensity refers to the amount of energy carried by each unit area perpendicular to the direction of wave propagation.

Loudness: In sound waves, loudness corresponds to our perception of sound intensity and relates directly to amplitude.