Energy transfer and efficiency

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  • Created by: sharonn.0
  • Created on: 21-04-22 19:06
what are energy stores
- magnetic
- internal (thermal)
- chemical
- kinetic
- electrostatic
- elastic potential
- gravitational potential
- nuclear
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what is nuclear energy
The energy stored in the nucleus of an atom
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how can energy transferred
- mechanically
- electrically
- by heating
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how is energy transferred mechanically
a force moving an object through a distance
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how is energy transferred electrically
charges moving due to a potential difference
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gravitational potential energy equation
mass x gravitational field strength x change in height
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why is no system perfect
energy is transferred and some of energy is dissipated
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what reduces friction
lubrication
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efficiency equation
useful energy/ total energy x 100
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what is conservation of energy
energy cannot be created or destroyed
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what are conductors
a material that allows electric current to pass through easily
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what is thermal conductivity
measure of how well a material conducts energy when it is heated
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how to reduced thermal energy transferred from a warm house
walls can be built thicker
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Other cards in this set

Card 2

Front

what is nuclear energy

Back

The energy stored in the nucleus of an atom

Card 3

Front

how can energy transferred

Back

Preview of the front of card 3

Card 4

Front

how is energy transferred mechanically

Back

Preview of the front of card 4

Card 5

Front

how is energy transferred electrically

Back

Preview of the front of card 5
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