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Energy

work, power, kinetic and potential energy, efficiency

QuestionAnswer
what is the work formula? force x distance
what is the power formula? power = work/time
metric unit for horsepower kilowatt
formula for kinetic energy E = 1/2mv^2
formula for gravitational potential energy PE = mgh
law of conservation of energy total energy of a mechanical system is constant. energy can be transformed from one form to another but the total amount of energy is unchanged
what is area under the force-distance graph when force is parallel to displacement of object amount of work done
formula for elastic potential energy EP = 1/2kx^2
formula for law of conservation of mechanical energy 1/2mv^2 + mgh = 1/2mv^2 + mgh
what is an elastic collision total kinetic energy is conserved
what is an inelastic collision total kinetic energy not conserved
formula for velocity from mgh = 1/2mv^2 v = square root of 2gh
Created by: scotthogan
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