Radiation is when energy is emitted from a source and is transmitted across a space to another object which absorbs it. The electromagnetic spectrum contains a range of radiations.

In this topic you need to know about the following: -

  • What types of radiation the electromagnetic spectrum contains (and the order in wavelengths.)
  • What happens when radiation hits an object.
  • How some types of radiation can be ionising and the damage that this can cause.
  • The uses of different parts of the electromagnetic spectrum.
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