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GCSE Combined Science · key term
The giving out of radiation by an object, transferring energy away from it.
Used by AQA
Specification 6.6.2.2, 6.6.2.3 · Paper 6
Revise: Infrared Absorption and Radiation: Required PracticalEmission means giving radiation out; absorption means taking it in.
The release of electromagnetic waves, transferring energy away from their source.
A Leslie cube investigation measures emission. Do not describe its detector readings as measurements of absorption.
Identify changes in the nucleus as the origin of gamma rays. Do not describe gamma emission as an electron moving between energy levels.
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