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Conservation of Energy - Coggle Diagram
Conservation of Energy
Conservative and Non-Conservative Forces
Conservative Force
Gravitational
Elastic
Electric
Non-Conservative Force
Friction
Air resistance
Tension in cord
Motor or rocket propulsion
Push or pull by a person
Potential energy
Gravitational
U=mgh (inside Earth)
U=-GMm/r (outside Earth)
Escape velocity
v=√2GM/r
Elastic
U=1/2Fx
Mechanical Energy and Its Conservation
E=K+U
Principle of Conservation of Mechanical Energy
If only conservative forces are doing work, the total mechanical energy of a system neither increases nor decreases in any process. It stays constant—it is conserved.
Law of Conservation of Energy
The total energy is neither increased nor decreased in any process. Energy can be transformed from one form to another, and transferred from one object to another, but the total amount remains constant.
Power
Rate of change of work done
P=dW/dt