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Kinetic Energy
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Elastic Potential Energy
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Gravitational Potential Energy
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An object's potential energy relative to a datum (whatever you have specified as the "ground") U = mgh
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Total Mechanical Energy
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E = U + K
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Conservation of Mechanical Energy
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ΔE = ΔU + ΔK = 0
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Work done by nonconservative forces (friction, air resistance, viscous drag)
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Wnonconservative = ΔE = ΔU + ΔK
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Definition of Work (Mechanical)
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W = F x d = Fdcosθ
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Definition of Work (isobaric gas-piston system, no pressure change)
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W = -PΔV
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Definition of Power
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P = W/t = ΔE/t
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Work-Energy Theorem
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Wnet = ΔK = Kf - Ki
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Mechanical Advantage
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Mechanical Advantage = Fout/Fin
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Efficiency (measure of amount of useful work generated by a machine for a given amount of work put into it)
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Efficiency = Wout/Win = (load)(load distance)/(effort)/(effort distance)
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