# Frames of Reference Physics | Definition – Motion in a Straight Line

Frames of Reference:
The most convenient system is a rectangular coordinate system of three mutually perpendicular axes as X, Y, and Z. The point of intersection of these three axes is called origin (O) and considered as the reference point. The x, y, z-coordinates describe the position of the object w.r.t the coordinate system. This coordinate system along with a clock constitutes a frame of reference.

## Frames of Reference Physics | Definition – Motion in a Straight Line

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Frames of Reference Definition:
A frame of reference is a complex set of assumptions and attitudes which we use to filter perceptions to create meaning.

Types Frame of Reference in Physics

• Inertial Frame of Reference
• Non-Inertial Frame of Reference

Inertial Frame of Reference Definition:
A frame of reference that moves with constant velocity with respect to an inertial frame is called as Inertial Frame.

Non-Inertial Frame of Reference Definition:
A reference frame in which the observers are undergoing some accelerating force, such as gravity or a mechanical acceleration is called as Non-Inertial Frame.

Motion in a Straight Line Topics: