physics 3.0 / 5 based on 2 ratings ? PhysicsIGCSEEdexcel Created by: sophyCreated on: 09-04-13 12:58 what is thermal conduction? the transfer of energy, such as heat, through a substance by atoms passing some kinetic energy to neighbouring atoms 1 of 10 what is thermal convection? The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink 2 of 10 what is thermal radiation? The emission of energy as electromagnetic waves or as moving subatomic particles. 3 of 10 what is the only method of heat transfer through a vacuum? thermal radiation 4 of 10 what speed do infrared waves travel in space? at the speed of light 5 of 10 what rays, emitted from the Sun, heat the Earth? infrared (IR) waves 6 of 10 what does insulation do? reduces the rate of heat transfer between areas at different temperatures 7 of 10 how do you reduce heat transfer by conduction? use a vacuum, air or water 8 of 10 how do you reduce heat transfer by convection? use a vacuum, trapped gas or liquid 9 of 10 how do you reduce heat transfer by radiation? use shiny surfaces 10 of 10
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