3.3 Amplitude, Frequency, Wavelength, Period.

Amplitude (a) = The maximum displacement of a wave. Measured from the Equilibrium to the Peak

Frequency (f) = How many cycles of the wave occur per second. Measured in Hertz (Hz).

Wavelength (λ) = The distance between the peak of a wave and the next peak.

Period (T) = The time taken for one complete cycle of a wave.