EM Waves and Communication

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We use EM waves for lots of different types of communication - TV, radio and mobile phones 

EM Radiation can transmit information

  • EM radiation can be used to transmit (send) information
  • Different types (frequencies) of radiation are used for different things:
    • Infrared - TV remote controls and night vision cameras
    • Microwave - Mobile phone and satellite communication
    • Radio - TV & radio transmissions and radar

Radio waves are used mainly for communication on Earth

  • Radio waves and microwaves are good at transmitting information over long distances
  • This is becasue they

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