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GCSE Physics · key term
Electromagnetic radiation associated with heating that can transfer energy to or from an object.
Used by AQA
Specification 4.6.3.1 · Paper 2
Revise: Emission and absorption of infrared radiationAll bodies—meaning all objects—emit and absorb infrared radiation, whatever their temperature. Emission means that an object gives out energy as infrared radiation. Absorption means that it takes in energy from infrared radiation falling on it.
Write that all bodies emit and absorb infrared radiation, not just hot or glowing objects.
When comparing objects at different temperatures, refer to the amount of infrared radiation emitted in a given time or the rate of emission.
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