Chemistry
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16 Terms
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Energy
capacity to do work
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potential energy
energy of position
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kinetic energy
energy of movement
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Heat
flow of energy due to a temperature difference
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Temperature
measure of average kinetic energy
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exothermic
heat is released
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endothermic
heat is absorbed
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law of conservation of energy
energy is neither created or destroyed
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If energy an heat flow into the system the signs are
positve
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if energy and heat flow out of the system the sings are
negative
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greenhouse effect
when fossil fuels are burn they prove CO2 which leads to warmer temp
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energy sources in the USA
fossil fuels, nuclear, hydro,wind,solar,geo
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wind : advantage
no pollution and cheap
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wind : disadvantage
wind power is less predicable
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potential energy example :
water sitting behind a dam
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kinetic energy example :
a an swimming in a pool
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