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Energy Notes
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Energy ~ the ability to do work
~ measured in units of Joules ~ Work = change in energy
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Potential Energy ~ energy stored and held in readiness
Gravitational Potential Energy ~ energy due to an objects elevated position ~ PE = Weight x Height = (mg) x (h) ~ PE = mgh ~ units of joules
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Other types of Potential Energy:
Elastic or Spring Potential Energy Chemical Potential Energy
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Kinetic Energy ~ energy of motion
~ If velocity doubles, KE quadruples ~ Units of Joules
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Conservation of Energy ~ Energy cannot be created or destroyed; it may be transformed from one form into another, but the total amount of energy never changes
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