Amplitude
The amount of energy in a wave. From the crest (or trough) to the mid-line.
Crest
The highest part of a sound wave
Trough
The lowest part of a sound wave
Wavelength
The distance between the point on one wave and the identical point on the next wave
Pitch
The highness or lowness of a sound
Frequency
The number of vibrations that occur in a second (or other unit of time meassurement)
Volume
The loudness of a sound. Meassuered in decibels.
