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An image taken by an infra red camera that shows how much infrared radiation is being emitted by a body
Thermogram
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A form of energy or a flow of energy from hotter objects to colder ones
Heat
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Measurement of how hot or cold an object is
Temperature
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Amount of energy needed to increase the temperature of 1kg of material by 1 degree
Specific heat capacity
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Changing from one physical state to another e.g. liquid to gas
Change of state
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Amount of energy needed to change the state of one kg. of a substance
Specific latent heat
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Melting
Fusion
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Boiling and evaporating into a gas
Vaporisation
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Bond between particles of a substance
Intermolecular bond
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One way of transferring energy by vibrations being passed on from one particle to another
Conduction
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Material that conducts heat well
Thermal Conductor
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Electrons that are free to move through a substance
Free electrons
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A liquid or gas
Fluid
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How thermal energy is transferred by the movement of particles in fluids
Convection
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The movement of particles by convection when heat energy is transferred
Convection current
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Form of electromagnetic radiation that you can feel as heat with a shorter wavelength than microwaves and a longer wavelength than visible light
Infrared radiation
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To give out
Emit
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Any substance that a wave passes through e.g. air, water, metal
Medium
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Time taken to recover the amount of money paid out in making a change from the resultant savings in energy bills
Payback time
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Describes when the costs of making a change is low in relation to the resultant savings in energy bills
Cost effective
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Other cards in this set

Card 2

Front

A form of energy or a flow of energy from hotter objects to colder ones

Back

Heat

Card 3

Front

Measurement of how hot or cold an object is

Back

Preview of the front of card 3

Card 4

Front

Amount of energy needed to increase the temperature of 1kg of material by 1 degree

Back

Preview of the front of card 4

Card 5

Front

Changing from one physical state to another e.g. liquid to gas

Back

Preview of the front of card 5
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