Non-inertial frame of reference

Definition

A non-inertial frame of reference is a frame of reference that is accelerating, either linearly or rotationally. In such frames, fictitious forces like the Coriolis force and centrifugal force appear to act on objects.

5 Must Know Facts For Your Next Test

1. In a non-inertial frame of reference, Newton's laws of motion do not hold without modification.
2. Fictitious forces arise in non-inertial frames to account for the observed accelerations.
3. The Coriolis force is an example of a fictitious force that acts in rotating frames of reference.
4. Non-inertial frames are often used to describe phenomena on Earth due to its rotation.
5. Analyzing motion in a non-inertial frame can simplify understanding complex systems like weather patterns.

Related terms

Inertial Frame of Reference: A frame of reference in which an object remains at rest or moves at constant velocity unless acted upon by external forces.

Coriolis Force:

An apparent force that acts on a mass moving in a rotating system, perpendicular to the direction of motion and the axis of rotation.

Centrifugal Force:

An apparent force that acts outward on a mass moving around a center, arising from its inertia.