GCSE Physics - Waves Revision
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The electromagnetic spectrum
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  • All waves in the electromagnetic spectrum are transverse.

  • The waves all travel at 3 x 108ms-2 known commonly as the speed of light.
  • The following table puts waves in order of increasing wavelength and decreasing frequency.

Wave

Uses / notes

Cosmic Rays

Hazard

Gamma Rays

Killing Cancer Cells

X-Rays

Medical Uses (X-Raying People)

Ultra Violet

Sterilising and sun tanning

Visible Light

Violet light has a higher frequency and lower wavelength than red light.

Infra-Red Light

Night Vision, short distance communication and heating

Microwaves

Cooking, communication

Radio Waves

Include short wave radio, medium wave and long wave radio waves.

Other Notes in this Category

  1. Gamma Rays
  2. Infra-red Light
  3. Introduction
  4. Microwaves
  5. Radio Waves
  6. Reflection, Refraction, Total internal Reflection
  7. The electromagnetic spectrum
  8. Ultraviolet Light
  9. Visual Light
  10. X-Rays

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