Physics Ontology

One map of physics, three ways in. Drill down on any quantity to see its units, the equations it lives in, and how its values span the universe.

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ω\omega
Mechanics

Angular Velocity

Rate of change of angular position.

SI unit

radian per second (rad/s)

Dimension: [ T−1 ][\,T^{-1}\,]

Other units

  • radian per second (rad/s)

Order of magnitude

How values of angular velocity span the physical world (in rad/s, log scale).

Earth's rotation
7.30 × 10-5 rad/s
Car wheel
102 rad/s
Dental drill
4.00 × 104 rad/s
Lower limit10-7 rad/sUpper limit104 rad/s

Appears in 3 equations

Angular Momentum
L=JωL = J \omega
Centripetal Acceleration
a=v2r=rω2a = \dfrac{v^2}{r} = r\omega^2
SHM Acceleration
a=−ω2xa = -\omega^2 x