A wave is a periodic oscillation travelling through a medium.

Transverse: disturbance is perpendicular to wave travel. Longitudinal is perpendicular to wave travel.

Wavelength: Symbol: Lambda, Unit: Metres. This is the distance between 2 identical points on a wave.

Amplitude: Symbol: A, Unit: Metres. Maximum displacement from equilibrium.

Time period: Symbol: T, Unit: Seconds. The time taken for 1 complete cycle.

Frequency: Symbol: f, Unit: Hertz. Cycle of waves passing per second.

Wave speed: symbol: V, Unit: m/s. Speed of a point on the wave form.

Speed is distance over time or SIDOT or V=f lambda.

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