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5.4 Uses and dangers of EM radiation

5.4 Uses and dangers of EM radiation

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Question 7

The following descriptions describe waves from different parts of the electromagnetic spectrum.

Complete each description by writing the name of the wave.

Use the name of each wave only once. Each description refers to a different part of the electromagnetic spectrum.

a.

Description 1

  • used in sunbeds to induce a suntan
  • can cause premature aging of the skin and increase the risk of skin cancer
  • typical wavelength 3.2 × 10-7 m
  • name of wave: .....
[1]
b.

Description 2

  • used to image internal bone structures and check for fractures
  • used in airport security scanners
  • typical wavelength 5.0 × 10-11 m
  • name of wave: .....
[1]
c.

Description 3

  • used in photography and optical fibre communication
  • is the only part of the electromagnetic spectrum detected by human eyes
  • typical wavelength 6.0 × 10-7 m
  • name of wave: .....
[1]
d.

Description 4

  • used in satellite TV communications and mobile networks
  • can readily pass through the Earth's atmosphere to reach orbiting systems
  • typical wavelength 2.0 × 10-2 m
  • name of wave: .....
[1]
Markscheme

5.4 Uses and dangers of EM radiation Questions

  1. GCSE
  2. /Physics
  3. /5.4 Uses and dangers of EM radiation

25 exam-style questions on Edexcel GCSE Physics 5.4 Uses and dangers of EM radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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