Chapter 9
Rotational Kinematics, Angular Momentum, and Energy
Book
Version 3
By Boundless
By Boundless
Boundless Physics
Physics
by Boundless
Section 1
Quantities of Rotational Kinematics
![Thumbnail](../../../../../figures.boundless-cdn.com/13711/square/figure-07-01-01aa.jpeg)
Angular Position, Theta
The angle of rotation is a measurement of the amount (the angle) that a figure is rotated about a fixed point— often the center of a circle.
![Thumbnail](../../../../../figures.boundless-cdn.com/13713/square/figure-07-01-03a.jpeg)
Angular Velocity, Omega
Angular velocity ω is the rate of change of an angle, mathematically defined as ω =
![Thumbnail](../../../../../figures.boundless-cdn.com/13714/square/figure-11-01-02a.jpeg)
Angular Acceleration, Alpha
Angular acceleration is the rate of change of angular velocity, expressed mathematically as
Section 5
Rotational Kinetic Energy
![Thumbnail](../../../../../figures.boundless-cdn.com/17442/square/globespin.gif)
Rotational Kinetic Energy: Work, Energy, and Power
The rotational kinetic energy is the kinetic energy due to the rotation of an object and is part of its total kinetic energy.
![Thumbnail](../../../../../figures.boundless-cdn.com/13705/square/figure-11-03-03a.jpeg)
Moment of Inertia
The moment of inertia is a property of a mass that measures its resistance to rotational acceleration about one or more axes.
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