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6. What is gamma radiation blocked by?

  • Thick lead
  • Any type of thick metal
  • A few metres of glass
  • Thick wood

7. Which type of radiation is stopped by paper and air?

  • Gamma
  • Alpha
  • Beta

8. What is a beta particle?

  • A high energy electron
  • An electromagnetic wave
  • Identical to a helium atom
  • Duh a particle

9. Which of these answers is a correct example of where background radiation comes from?

  • Sound waves
  • Rocks
  • Pollen
  • Water

10. What is the order of most - least ionising radiation?

  • Gamma, alpha, beta
  • Alpha, beta, gamma
  • Beta, alpha, gamma
  • Gamma, beta, alpha