Science Revision 4.0 / 5 based on 1 rating ? PhysicsAll LevelsNone Created by: Nicky BaylisCreated on: 20-11-12 14:33 An image taken by an infra red camera that shows how much infrared radiation is being emitted by a body Thermogram 1 of 20 A form of energy or a flow of energy from hotter objects to colder ones Heat 2 of 20 Measurement of how hot or cold an object is Temperature 3 of 20 Amount of energy needed to increase the temperature of 1kg of material by 1 degree Specific heat capacity 4 of 20 Changing from one physical state to another e.g. liquid to gas Change of state 5 of 20 Amount of energy needed to change the state of one kg. of a substance Specific latent heat 6 of 20 Melting Fusion 7 of 20 Boiling and evaporating into a gas Vaporisation 8 of 20 Bond between particles of a substance Intermolecular bond 9 of 20 One way of transferring energy by vibrations being passed on from one particle to another Conduction 10 of 20 Material that conducts heat well Thermal Conductor 11 of 20 Electrons that are free to move through a substance Free electrons 12 of 20 A liquid or gas Fluid 13 of 20 How thermal energy is transferred by the movement of particles in fluids Convection 14 of 20 The movement of particles by convection when heat energy is transferred Convection current 15 of 20 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 16 of 20 To give out Emit 17 of 20 Any substance that a wave passes through e.g. air, water, metal Medium 18 of 20 Time taken to recover the amount of money paid out in making a change from the resultant savings in energy bills Payback time 19 of 20 Describes when the costs of making a change is low in relation to the resultant savings in energy bills Cost effective 20 of 20
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