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25 Cards in this Set
- Front
- Back
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Force= |
mass x acceleration |
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Potential energy
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Energy of position
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Energy |
the ability to do work. |
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If you want to keep the same work, but increase the power, you do the same amt of work in _______ ________. |
Must do the same amt. of work in less time. |
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In order to do work, ______ _______ ________!
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SOMETHING MUST MOVE!
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Power
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The rate at which work is done. |
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The higher the point on a hill, the _____ Potential energy the point has.
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GREATER |
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The higher the point on a hill, the ____Kinetic energy the point has.
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LESSER
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Work
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Applied energy; energy caused by forces.
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Mechanical Energy?
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energy created by the physical movement of rotation, revolution, ect. of an object.
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Mechanical Energy includes ____ and ____
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Kinetic Energy and Potential Energy
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Law of Conservation of Energy
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Energy cannot be created or destroyed, only transferred and converted
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Work
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when a force acts on an object and the object moves in the direction of the force
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Power
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The rate at which work is done. |
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Watt
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The unit of power. (Joule/second)
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mechanical energy
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the energy due to the position of something or the movement of something.
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Potential energy
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Energy that is stored and held in readiness. ex: elastic, chemical, gravitational
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Kinetic energy
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The energy of motion.
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Work energy theorem
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States that whenever work is done, energy changes. |
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Force unit
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Newton
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Work unit
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Joule |
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Force x distance
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Work
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Work / time
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Power
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KE= 1/2mv^2
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Kinetic energy formula
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PE = mgh
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Potential energy formula |
