The number of waves passing a point each second.
Frequency
Are regions of low pressure due to particles being spread further apart.
RAREFACTION
Regions of high pressure due to particles being close together
COMPRESSION
The space between the crest and resting position.
AMPLITUDE
It is the Lowest part of the Wave.
TROUGH
The distance between 2 crest or 2 trough.
WAVELENGTH
It is the highes part of the wave.
CREST
The undisturbed position of particles or fields when they are not vibrating
RESTING POSITION