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 amount of KE energy produced in fission
  • The TIR.
  • The minimum mass of fissile material (uranium) that is able to sustain a chain reaction.
  • The maximum mass of fissile material (uranium) that is able to sustain a chain reaction.
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2. How do moderators increase rates of fission?

  • Slowing down fast-moving protons because slow moving protons are more likely to be absorbed by the uranium atom
  • Slowing down fast-moving neutrons because slow moving neutrons are more likely to be absorbed by the uranium atom
  • Slowing down fast-moving electrons because slow moving electrons 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

3. What is terminal velocity?

  • A constant velocity - when air resistance is equal to the weight of the object and the resultant force is now 0
  • An alternating velocity
  • A slow velocity
  • A constant velocity - when resultant force is 100

4. 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)
  • Fusion that is cold
  • Fission
  • Slow moving electrons

5. How does the KE produced from fission, in nuclear power stations, power turbines?

  • The KE faces air resistance
  • When KE just powers turbines
  • When KE is turned into heat and used to boil water to make steam - the steam powers turbines
  • The KE is changed to electrical energy which powers the turbines

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