Degrees: A unit of measurement for angles.
Frequency: The number of crests of a wave that travel past a point in a given unit of time.
Hertz: A measurement of frequency, the number of waves that pass in one second.
Metres: A measurement of distance
Metres/second: A measurement of speed or velocity. How many metres travelled in one second.
Velocity: How fast something is moving in a particular direction; a vector quantity.
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