Physics p1.1/p1.2

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  • Created by: mollyj
  • Created on: 05-10-15 11:38

1. how do you calculate the efficiency of a device?

  • (useful output/total input)*100%
  • (total input/useful output)*100%
  • (useful output*100%)/total input
  • (useful output/100%)*total input
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Other questions in this quiz

2. which of the following energy transfer processes do not require particles?

  • evaporation
  • conduction
  • radiation
  • convection

3. what objects are best at emitting infrared radiation?

  • dark, dull materials
  • dark, shiny materials
  • light, dull materials
  • light, shiny materials

4. what is transmission?

  • an object giving out energy
  • energy travelling through a material
  • energy being transferred from one object to another
  • an object taking in energy

5. which of the following is not a property of liquids?

  • can be compressed
  • medium density
  • fit the shape of their container
  • flow easily

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