Heating and Cooling Quiz

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1. Which of the following phrases about heat transfer properties best matches the use of a plastic handle for a fryingpan?

  • poor reflector of heat radiation
  • good absorber of heat radiation
  • poor reflector of heat radiation
  • good conductor of heat
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2. Which best describes what happens to the particles of water when it evaporates

  • They lose energy and escape into the atmosphere
  • They gain energy and gain freedom to move about
  • The higher kinetic energy particles increase their freedom to move without significant attraction
  • They lose energy and lose freedom to move about

3. Problems can arise with railway steel track from changes in temperature. Small gaps are left between each rail section to allow for changes in length. Which of the following is TRUE about the steel rails and change in temperature?

  • expansion happens when the steel atoms lose vibration energy
  • if no gap is made the rail can get longer becoming dangerously distorted
  • on average the rail track will contract more in the summer than the winter
  • on average the gap will be smaller in the winter than the summer

4. Which temperature could be that of a bread oven?

  • 37oC
  • 150oC
  • 28oC
  • 1oC

5. Which of the following types of heat transfer matches cooling by sweating?

  • evaporation
  • conduction
  • radiation
  • convection


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