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

  • The KE faces air resistance
  • 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
  • When KE just powers turbines
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2. How do moderators increase rates of fission?

  • Slowing down fast-moving electrons because slow moving electrons 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
  • Slowing down fast-moving neutrons because slow moving neutrons 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. Disadvantages of nuclear power?

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

4. What is terminal velocity?

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

5. What happens in radiotherapy?

  • A gamma source of iodine is used to target cancerous cells by rotating an intense beam of gamma rays, most cancer cells can be killed with little damage to healthy cells.
  • A gamma source of cobalt is used to target cancerous cells by rotating an intense beam of gamma rays, most cancer cells can be killed with little damage to healthy cells.
  • An alpha source of cobalt is used to target cancerous cells by rotating an intense beam of gamma rays, most cancer cells can be killed with little damage to healthy cells.
  • A beta source is used to target cancerous cells by rotating an intense beam of gamma rays, most cancer cells can be killed with little damage to healthy cells.

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