Inertial Frame of Reference

Definition

An inertial frame of reference is a coordinate system in which Newton's first law holds true. In other words, if an object is not subjected to any external forces, it will either remain at rest or move with constant velocity in an inertial frame.

Related terms

Non-inertial Frame of Reference: This term refers to a coordinate system that is accelerating or rotating, where Newton's first law does not hold true.

Galilean Transformation: This term refers to mathematical equations used to convert measurements between different inertial frames of reference.

Relative Motion:

This term refers to the motion observed from one frame of reference relative to another, taking into account their relative velocities.