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angular frequency
Sign in to saveAlso known as ω, radian frequency, orbital frequency
rate of change of the phase angle
Key facts
- Other names
- angular speed, angular rate
- Common symbols
- ω
- Si unit
- radian per second (rad/s)
- Other units
- degrees per second (°/s)
- In si base units
- s
- Derivations from other quantities
- ω = 2 π rad⋅ ν , ω = d θ /d t
- Dimension
- T − 1 {\displaystyle {\mathsf {T}}^{-1}}
via Wikipedia infobox
~4 min read
Encyclopedic overview
A sphere rotating around an axis. Points farther from the axis move faster, satisfying ω = v / r.
In physics, angular frequency (symbol ω), also called angular speed and angular rate, is a scalar measure of the angle rate (the angle per unit time) or the temporal rate of change of the phase argument of a sinusoidal waveform or sine function (for example, in oscillations and waves). Angular frequency (or angular speed) is the magnitude of the pseudovector quantity angular velocity.
Excerpted from Wikipedia’s “angular frequency” article, available under the CC BY-SA 4.0 licence.