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What is angular displacement ($ heta$)?
How much an object has rotated, measured in radians.
What is angular velocity ($omega$)?
The rate of change of angular displacement, measured in rad/s.
What is angular acceleration ($alpha$)?
The rate of change of angular velocity, measured in rad/s².
What is torque ($ au$)?
A twisting force that causes rotation; the rotational equivalent of force, measured in N·m or J.
What is moment of inertia (*I*)?
Resistance to rotational motion, measured in kg·m².
What is rotational kinetic energy (*K<sub>rot</sub>*)?
Energy of rotation, measured in Joules (J).
What is angular momentum (*L*)?
Measure of rotational motion, measured in kg·m²/s.
What is angular displacement ($ heta$)?
How much something has rotated, measured in radians.
What is angular velocity ($omega$)?
How fast something is rotating, measured in rad/s.
What is angular acceleration ($alpha$)?
How quickly the rotation rate is changing, measured in rad/s².
What is torque ($ au$)?
A twisting force that causes rotation; the rotational equivalent of force, measured in N·m or J.
What is moment of inertia (*I*)?
Resistance to rotational motion, measured in kg·m².
What is rotational kinetic energy (*K<sub>rot</sub>*)?
Energy of rotation, measured in Joules (J).
What is angular momentum (*L*)?
Measure of rotational motion, measured in kg·m²/s.
What is the relationship between angular and linear displacement?
Angular displacement: $\Delta\theta$ | Linear displacement: $\Delta x$. $\Delta\theta = s/r$, where *s* is arc length and *r* is the radius.
What is the relationship between angular and linear velocity?
Angular velocity: $\omega$ | Linear velocity: v. $\omega = v/r$, where *v* is linear velocity.
What is the relationship between angular and linear acceleration?
Angular acceleration: $\alpha$ | Linear acceleration: a. $\alpha = a/r$, where *a* is linear acceleration.
How is torque similar to force?
Torque: Causes rotational acceleration. | Force: Causes linear acceleration.
How is moment of inertia similar to mass?
Moment of Inertia: Resistance to rotational motion. | Mass: Resistance to linear motion.