AQA Physics - Heat Radiation (P1) 0.0 / 5 ? PhysicsEnergyHeat radiationGCSEAQA Created by: Harriet.HoltCreated on: 23-05-17 10:10 Which three ways is heat transferred? Conduction, Convection and Radiation. 1 of 9 What is heat radiation? the transfer of energy by infrared radiation. 2 of 9 What is conduction? the transfer of energy through particles. It is the main form of heat transfer in solids. 3 of 9 What is convection? the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. 4 of 9 What emits infrared radiation? All objects. Continuously. 5 of 9 Does an object hotter than its surroundings emit more or less radiation than it absorbs? more 6 of 9 What surfaces absorbs infrared radiation the most? Dark, matt surfaces. 7 of 9 What surfaces reflect infrared radiation the most? Light, shiny surfaces. 8 of 9 Why are metals good conductors? They contain free electrons which are able to move around the metal. 9 of 9
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