chapter 5: work and energy vocab

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10 Terms

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work

the product of the force and the displacement of the goblet in the direction of the force

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power

a measure of how fast work is done

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horsepower

a unit of power in the british system of measurement

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energy

the ability to cause changes in matter

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potential energy

the energy stored in an object of the energy an object poses because of its position or condition

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gravitational potential energy

the potential energy an object has due to its position above the earth's surface

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base level

a position where the potential energy is chosen to be zero

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kinetic energy

the energy an object possesses because of its motion

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Law of Conservation of Energy

the total energy of an object or a group of objects stays the same

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law of conservation of mechanical energy

the sum of the potential and kinetic energies of an ideal energy system is constant