Loudness and pitch of sound

Loudness and Pitch of Sound

10.2

Loudness and Pitch of Sound

The loudness of sound produced depends on the amplitude of the sound wave
Pitch of sound depends on the frequency of the sound produced
Frequency is measured in the unit of hertz (Hz)

The relationship between loudness and amplitude

When wave amplitude increases, louder sound is produced

The relationship between pitch of a sound and frequency

When wave frequency increases, higher pitch is produced

Doppler Effect

The Doppler effect is the apparent change in frequency caused by the relative movement of sound source, the relative movement of the observer or both.