ch 8- Rotational Motion

Flashcards covering key concepts related to Rotational Motion in Conceptual Physics.

Circular Motion

When an object turns about an axis that passes through the object.

Tangential Speed

The distance traveled by a point on a rotating object divided by the time taken to travel that distance.

Rotational Speed

The number of rotations or revolutions per unit of time.

Rotational Inertia (I)

The property of an object to resist changes in its rotational state of motion.

Torque

An influence that changes the rotational speed of an object.

Center of Mass (CM)

The average position of all the mass that makes up the object.

Center of Gravity (CG)

The average position of weight distribution in an object.

Centripetal Force

A force directed toward a fixed center of a rotational motion.

Centrifugal Force

An apparent outward force experienced by an occupant inside a rotating system.

Angular Momentum

The inertia of rotation of rotating objects, defined as rotational inertia times angular velocity.

Conservation of Angular Momentum

States that if no external net torque acts on a rotating system, the angular momentum remains constant.