Atoms and Ionising Radiation

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  • Created by: naomi2310
  • Created on: 23-12-14 22:40

1. Where does background radiation come from? 3 answers please.

  • a) Nuclear waste b) Fossil Fuels c) Cosmic Rays
  • a) Naturally occuring unstable isotopes e.g rocks, food, building material. b) space, cosmic rays, mostly coming from the sun. c) man made sources, e.g fallout from nuclear weapons tests- chernobyl or dumped nuclear waste.
  • a) Cosmic Ray Radiation b) Technology c) Nuclear explosions
  • a) The ionosphere b) Naturally occuring unstable isotopes e.g food and rocks c) Radiatiors
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Other questions in this quiz

2. What particles are beta particles? (think atomic model)

  • Nuclei
  • Protons
  • Electrons
  • Neutrons

3. Why are gamma rays weakly ionising?

  • Because they're short wavelength electromagnetic waves.
  • Because they tend to pass through materials rather than colliding with atoms.
  • Because they don't tend to penetrate far into materials rather than colliding with atoms.
  • Because they tend to collide with materials rather than colliding with atoms.

4. For every beta particle emitted....

  • A proton turns to a neutron in the nucleus. With a charge of -1
  • An electron turns to a proton in the nucleus. With a charge of -1
  • A neutron turns to a proton in the nucleus. With a charge of -1
  • A neutron turns to a electron in the nucleus. With a charge of +1

5. Where do radioactive substance give out radiation from? Is it random or regulated?

  • From the nucleus, it's a regulated process
  • From the nucleus, it's a random process
  • From electrons, it's a random process
  • From the protons, it's a random process

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