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Physics Cheat Sheet (DRAFT) by

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Potential Energy=U

Energy associated with particles in a system where particles exert forces on one another
Gravit­ational U:
Force between 2 masses (Often 1 mass and a planet)
Elastic U:
State of stretch or compre­ssion on elasti­c/s­pri­nglike object.

Work and U

Change in elastic potential energy equals the negative of the work done by the spring force.
Change in gravit­ational potential energy equals the negative of the work done by gravity.

Conser­vation and Non-Co­nse­rvative Forces

Two or more objects with force that are able to be arranged in a way that transfers energy between kinetic energy and another form of energy, that can be reversed, and may be repeated.
Mass on surface with friction. The mass slides, kinetic energy is transf­ormed to thermal by work done by friction. Friction can not change thermal back to kinetic energy.
Path Indepe­ndence of Conser­vative Forces
Closed Path Test:The net work done by a conser­vative force on a closed path is zero.
Work done on a conser­vative force does not depend on the path taken.