Amplitude The max. distance the particles

move from the “rest position” to:

The more energy a wave has → The greater its amplitude

Crest or trough

OR Compression or rarefaction

Wavelength The distance between two

corresponding parts of a wave. Measured in m, cm, mm From:

Crest to crest Trough to trough Compression to compression

Frequency The number of complete waves to

pass a point in a certain amount of time.

Measured in hertz (Hz) 1 wave/second = 1 Hz 2 waves/second = 2 Hz

Speed How far a wave travels in a given

length of time. Speed = Wavelength x Frequency If the medium does not change

then the speed remains constant.

S

WL Freq