Physics 2 - Energy

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  • Created by: Ls
  • Created on: 18-05-14 14:36
energy
makes things happen, cannot be created or destroyed, can be transferred from one form to another
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types of energy (9)
chemical, light wave, sound wave, electrical, thermal, kinetic, gravitational potential, elastic potential, nuclear
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gravitational potential
the energy an object has due to its position on a gravitational field
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elastic potential
the energy stored when an object is stretched or squashed
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electrical
the energy transferred by an electrical current
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kinetic
the energy of movement
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chemical
the energy available from a chemical reaction
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nuclear
the energy available from a nuclear reaction
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sound wave
the regular vibration of particles, usually in the air
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light waves
electromagnetic vibrations
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thermal
the energy from a hotter object/region to a cooler one
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efficiency
the greater percentage of energy that is usefully transformed, not wasted: efficiency = useful energy out / total energy in
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dissipation of energy
in energy transfers, some wasted energy eventually becomes heat, spreads out in surroundings and is almost impossible to get back to become useful again
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Other cards in this set

Card 2

Front

chemical, light wave, sound wave, electrical, thermal, kinetic, gravitational potential, elastic potential, nuclear

Back

types of energy (9)

Card 3

Front

the energy an object has due to its position on a gravitational field

Back

Preview of the back of card 3

Card 4

Front

the energy stored when an object is stretched or squashed

Back

Preview of the back of card 4

Card 5

Front

the energy transferred by an electrical current

Back

Preview of the back of card 5
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