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10 cards from this deck
Property of a body giving it the ability to do work
Eg=mgΔhE_g = mg\Delta hEg=mgΔh
Ek=12mv2E_k = \frac{1}{2}mv^2Ek=21mv2
Total energy in a closed system remains constant
How quickly energy is transferred or work is done
P=EtP = \frac{E}{t}P=tE
Watt (W) or J s−1\text{J s}^{-1}J s−1
η=useful energy outtotal energy in\eta = \frac{\text{useful energy out}}{\text{total energy in}}η=total energy inuseful energy out
Transfer: between objects; Transformation: form changes
Proportional to velocity squared (Ek∝v2E_k \propto v^2Ek∝v2)
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