In physics, angular frequency ω (also referred to by the terms angular speed, radial frequency, circular frequency, orbital frequency, and radian frequency) is a scalar measure of rotation rate. Angular frequency (or angular speed) is the magnitude of the vector quantity angular velocity. The term angular frequency vector is sometimes used as a synonym for the vector quantity angular velocity.
One revolution is equal to 2π radians, hence
where
- ω is the angular frequency or angular speed (measured in radians per second),
- T is the period (measured in seconds),
- f is the ordinary frequency (measured in hertz) (sometimes symbolised with ν),
- v is the tangential speed of a point about the axis of rotation (measured in meters per second),
- r is the radius of rotation (measured in meters).
Read more about Angular Frequency: Units
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