EDEXCEL PHYSICS ADDITIONAL P2 QUIZ VARIOUS TOPICS

Please don't use this quiz as a staple revision source. I have made flash cards for P2 (not electronically) and when filtering through which answers I know and which I don't, this quiz is based on all the flash cards I didn't know. 

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1. How do coolants control chain reactions?

  • Changing thermal energy into electrical energy to power turbines
  • By slowing down fast moving electrons
  • Removing the thermal energy produced in fission reactions so it can be used to heat water to produce steam to power turbines
  • By using kinetic energy
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Other questions in this quiz

2. What is cold fusion?

  • Slow moving electrons
  • Fusion that is cold
  • A theory that nuclear fusion could be done at room temperature (however it was rejected as it couldn't be validated)
  • Fission

3. Disadvantages of nuclear power?

  • Expensive, bad reputation with the public, waste is radioactive for years
  • Expensive and renewable
  • Lots of background radiation produced, waste is hard to deal with
  • High risk of nuclear accidents

4. What is exponential decay in half life?

  • When a quarter of the nuclei will decay in half the time etc etc.
  • When the nuclei decays
  • When all the nuclei decays in 3 hours
  • When a quarter of the nuclei will decay in an hour

5. How do moderators increase rates of fission?

  • Slowing down fast-moving neutrons because slow moving neutrons are more likely to be absorbed by the uranium atom
  • Slowing down fast-moving protons because slow moving protons are more likely to be absorbed by the uranium atom
  • Removing the thermal energy produced in fission reactions so it can be used to heat water to produce steam to power turbines
  • Slowing down fast-moving electrons because slow moving electrons are more likely to be absorbed by the uranium atom

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