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. What is critical mass?

  • The maximum mass of fissile material (uranium) that is able to sustain a chain reaction.
  • The amount of KE energy produced in fission
  • The minimum mass of fissile material (uranium) that is able to sustain a chain reaction.
  • The TIR.
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2. What will experience air resistance?

  • All objects moving in the air experience air resistance
  • Stationary objects
  • Nothing
  • All objects moving undergroud

3. How do coolants control chain reactions?

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

4. What is exponential decay in half life?

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

5. What is cold fusion?

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

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