The Electromagnetic Spectrum

The Electromagnetic Spectrum

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  1. Mindmap
  2. Physics
  3. Waves
  4. EM Spectrum

Classroom visuals

  • Radio Antenna Dishes

    Radio Antenna Dishes

  • Submarine Control Room

    Submarine Control Room

  • Mobile Phone

    Mobile Phone

  • Infrared

    Infrared

  • Airport X-ray Machine

    Airport X-ray Machine

  • X-ray

    X-ray

  • Night-vision goggles

    Night-vision goggles

  • Sunbed

    Sunbed

  • Frequency and Wavelength

    Frequency and Wavelength

  • UV and Earth's Atmosphere

    UV and Earth's Atmosphere

Learning materials

Film info

Film summary

The range of electromagnetic radiation in the electromagnetic spectrum is huge. Where does this radiation come from and how do the frequencies and wavelengths vary?

Key facts

  • Electromagnetic radiation is all around us and its power varies hugely.
  • Electromagnetic radiation is measured on the electromagnetic spectrum.
  • There are both natural and man-made sources .
  • It can be beneficial, harmless or extremely dangerous to us.

Transcript

Traveling at 3x108m/s, electromagnetic radiation is all around us, even in the vacuum of space, as it doesn't require any medium to move through.

Speed of electromagnetic radiation = 3x108m/s
This is the speed of light

Its energy is carried in the form of electric and magnetic fields, created by the movement of …

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