Energy for the Home P1:A - Heat Basics

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1. What is a thermogram?

  • It is a picture which shows heat signatures through the use of colours
  • A picture that shows electrical signatures
  • A different name for a fax
  • A way to insulate the house by using thick materials
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2. What is the best surface for emitting and absorbing heat radiation?

  • Matt black
  • Shiny Black
  • Matt white
  • Shiny white

3. What is convection?

  • When more energetic particles move from the hotter region to the cooler region taking their energy with them
  • When more energetic particles pass on their energy to neighbouring particles
  • When heat is transferred through a vacuum by infrared waves
  • The net movement of particles against the concentration difference

4. More efficient machines ....

  • Do the job better
  • Waste less energy
  • Waste more energy
  • Don't break as easily

5. Define Specific Heat Capacity

  • The amount of energy needed to change the state of 1kg of substance without a change in temperature
  • The amount of energy needed to raise the temperature of 1kg of substance by 1*C
  • Stuff
  • How much energy stuff can store
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