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Physics
Light and the electromagnetic spectrum
Dangers and Uses
Uses of EM Radiation
Uses of EM Radiation
What You Need to Know
Describe uses of radio waves including broadcasting, communications and satellite transmissions.
Describe uses of microwaves including cooking, communications and satellite transmissions.
Describe uses of infrared including cooking, thermal imaging, short range communications, optical fibres, TV remotes and security systems.
Describe uses of visible light including vision, photography and illumination.
Describe uses of ultraviolet including security marking, fluorescent lamps, detecting forgeries and disinfecting water.
Describe uses of x-rays including medical imaging and airport security.
Describe uses of gamma rays including sterilising food/equipment and cancer detection/treatment.
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Radio Waves and Circuits