Keywords of the electromagnetic spectrum 3.0 / 5 based on 1 rating ? PhysicsElectromagnetic SpectrumGCSEEdexcel Created by: Sophie LaunchburyCreated on: 06-03-13 14:08 What does absorption mean? the process in which electromagnetic wave hits a surface and their energy is transferred to the material 1 of 13 What does electromagnetic spectrum mean? The continuous series of electromagnetic waves in order of wavelength or frequency 2 of 13 What does frequency mean? The number of waves passing a point every second, measured in hertz (Hz) 3 of 13 What does gamma rays mean? Electromagnetic waves with the shortest wavelengths. 4 of 13 What does infared waves mean? Electromagnetic waves given off by hot objects. 5 of 13 What does microwaves mean? Electromagnetic waves that are short-wavelength radio waves. 6 of 13 What does radio waves mean? Electromagnetic waves with the longest wavelengths. 7 of 13 What does reflection mean? The process in which electromagnetic waves bounce back from a surface 8 of 13 What does transmission mean? When a material allow waves to pass through it. 9 of 13 What does ultraviolet rays mean? Electromagnetic waves that can be absorbed by certain chemicals and emitted as visible light. 10 of 13 What does wavelength mean? The distance between two matching points on neighbouring waves, which is measured in metres 11 of 13 What does visible light mean? Electromagnetic waves that are detected by our eyes, allowing us to see. 12 of 13 What does X-rays mean? Electromagnetic waves that pass through most materials. 13 of 13
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