16 Rotational Motion Lecture Notes

A set of flashcards summarizing key vocabulary and concepts in rotational motion as covered in the lecture notes.

Angular Position (θ)

The angle that describes the location of a particle in radians, measured counterclockwise from the positive x-axis.

Angular Displacement

The angle through which an object has rotated, expressed in radians.

Angular Velocity

Average angular velocity is defined as the total angular displacement divided by time, measured in rad/s.

Angular Acceleration (α)

The rate at which the angular velocity changes with time, measured in rad/s².

Tangential Acceleration

The acceleration that occurs when the angular velocity of an object changes.

Centripetal Acceleration

An acceleration that keeps a body moving in a circular path, directed towards the center of rotation.

Rotational Kinematics

The equations of motion for constant angular acceleration, analogous to linear motion.

Revolutions to Radians

To convert revolutions to radians, multiply the number of revolutions by 2π.

Linear Velocity (υ)

The linear speed of a point on a rotating body, which is related to angular velocity by the formula υ = rω.

Constant Angular Acceleration

A scenario where the angular acceleration does not change, allowing to use similar equations as linear motion.