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Circular Motion, SHM

LC Physics (HL Only)

TermDefinition
Angular Velocity Rate of change of angle with respect to time
Centripetal Force Force on a body in circular motion directed towards centre.
Centripetal Acceleration Acceleration a body has when moving in a circle and it is always directed towards the centre.
Period of an Orbit Time taken for a satellite to go around the central body once.
Kepler's Third Law The square of the orbital period is directly proportional to the cube of the radius of rotation.
Geostationary Orbit A satellite is said to be in geostationary orbit if: 1. The period is 24 hours 2. Orbit is in the equatorial plane 3.Direction of orbit is the same as the direction the Earth rotates
Hooke's Law Restoring force is directly proportional to the displacement of an elastic object provided the elastic limit is not exceeded.
Simple Harmonic Motion A body is moving with SHM if: 1. Acceleration is directly proportional to its distance from a fixed point. 2. Its acceleration is always directed towards that point.
Created by: mduffy13
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