Energy Transfer by Heating 4.0 / 5 based on 2 ratings ? PhysicsEnergyGCSEAQA Created by: Laura-BethCreated on: 30-11-12 17:20 How is heat energy transferred? Conduction, convection and radiation. 1 of 12 What qualities do dark, matt surfaces have? Good absorbers and emitters of heat radiation. 2 of 12 What qualities do light, shiny surfaces have? Poor absorbers and emitters of heat radiation. 3 of 12 What does the rate of heat radiation depend on? Its surface area and how much hotter it is than its surroundings. 4 of 12 What is thermal radiation? The transfer of energy by infra-red waves. 5 of 12 What do all objects do? Emit heat radiation. 6 of 12 The hotter the object... The more heat radiation it emits. 7 of 12 How can we get heat from the sun? Heat radiation can travel through a vacuum, like space, because no particles are involved. 8 of 12 An object painted dull black will...? Become hotter quicker than the same object painted shiny white and lose heat/cool down quicker too. 9 of 12 What characteristics does a solid have? Only vibration of compact particles for movement, fixed shape, regular pattern, all touching, fixed in position. 10 of 12 What characteristics does a liquid have? All touching, no fixed shape, fixed volume, particles move past each other, no pattern. 11 of 12 What characteristics do gases have? Rapid, random movement, bounce off walls, fill container, change shape. 12 of 12
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