P1.1.8 Specific Heat Capacity + P1.1.9 Heating and insulating buildings

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  • Created by: Maddi
  • Created on: 19-04-14 19:56
How does the mass of a substance affect how quickly its temperature changes when it is heated?
The greater the mass of an object, the more slowly its temperature increases when it is heated.
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What else affects how quickly the temperature of a substance changes when it is heated?
The rate of temperature change of a substance when heated depends on: the energy supplied to it, its mass and its specific heat capacity.
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How do storage heaters work?
Storage heaters use off-peak electricity to store energy in special bricks.
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What is the formula for specific heat capacity?
E = m x c x
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What is specific heat capacity?
Energy needed by 1kg of the substance to raise its temperature by 1'C.
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How can we reduce the rate of energy transfer from our homes?
Energy transfer from our homes can be reduced by fitting: loft insulation, cavity wall insulation, double glazing, draught proofing and aluminium foil behind radiators.
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What are U-values?
U-values tell us how much energy per second passes through different materials.
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Name an advantage of solar heating panels?
Solar heating pannels do not use fuel to heat water so are cheap to run.
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Name a disadvantage of solar heating panels?
Solar heating panels are expensive to buy and install. They also do not generate electricity during the night.
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What is a solar heating pannel?
Sealed panel designed to use sunlight to heat water running through it.
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Other cards in this set

Card 2

Front

What else affects how quickly the temperature of a substance changes when it is heated?

Back

The rate of temperature change of a substance when heated depends on: the energy supplied to it, its mass and its specific heat capacity.

Card 3

Front

How do storage heaters work?

Back

Preview of the front of card 3

Card 4

Front

What is the formula for specific heat capacity?

Back

Preview of the front of card 4

Card 5

Front

What is specific heat capacity?

Back

Preview of the front of card 5
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