Cooking and Communicating With Waves

I created these to help me revise. Mainly contains info about cooking and microaves.

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  • Cooking and Communicating With Waves
    • Infrared
      • Doesn't penetrate food very easily
      • Infrared are non-ionising waves that produce heat used in toasters and electric fires
    • Microwaves
      • Can penetrate up to 1cm in food
      • Have wave lengths between 1mm and 30cm
      • Satellites are used for microwave communication
        • The signal from Earth is received, amplified and re-transmitted back to Earth
      • Microwaves are reflected by shiny metal surfaces
      • Microwaves can penetrate glass and plastic


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