AQA Core Physics 1 - Thermal Radiation Revision of thermal radiation and the different ways of heat transfer. 2.5 / 5 based on 2 ratings ? PhysicsEnergyGCSEAll boards Created by: EmilyCreated on: 02-06-12 13:25 Conduction in metals is the transfer of heat by... The movement of free electrons 1 of 4 Convection is the transfer of heat by... The heated substance expanding and rising 2 of 4 What are convection currents? When particles in a liquid or gas gain heat energy and rise as the denser cooler particles sink. 3 of 4 Why can the Sun's heat be felt on Earth? The heat is transferred by radiation. 4 of 4
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