Heating Houses - P1

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  • Created by: Laiba_x
  • Created on: 24-05-14 19:07
How does energy flow?
Energy, in the form of heat, flows from a warmer to a colder body. When energy flows away from a warm object, its temperature decreases.
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What is a thermogram?
It uses colour to show temperature. Hottest areas = white/yellow. Coldest areas = black/blue/purple
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What is meant by temperature?
This is a measurement of hotness - you do not need to use a thermometer; it allows one object to be compared to another.
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What happens when the temperature of a body increases?
The average kinetic energy of the particles in that object increases.
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What is meant by heat?
This is a measurement of internal energy.
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What is meant by Specific Heat Capacity?
It's the energy needed to raise the temperature of 1 kg by 1 'c. Units = J/kg'c
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What happens when an object is heated and its temperature rises?
Energy is transferred.
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What is the equation of specific heat capacity?
energy transferred = mass x specific heat capacity x temperature change
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What is meant by Specific Latent Heat?
The energy needed to melt or boil 1 kg of the material. Units = J/kg
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What happens when an object is heated and it changes state?
Energy is transferred but the temperature remains constant because the energy is needed to break the bonds that hold the molecules together.
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What is the equation for specific latent heat?
Energy transferred = mass x specific latent heat
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Other cards in this set

Card 2

Front

What is a thermogram?

Back

It uses colour to show temperature. Hottest areas = white/yellow. Coldest areas = black/blue/purple

Card 3

Front

What is meant by temperature?

Back

Preview of the front of card 3

Card 4

Front

What happens when the temperature of a body increases?

Back

Preview of the front of card 4

Card 5

Front

What is meant by heat?

Back

Preview of the front of card 5
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