Physics 0625 · IGCSE · Transfer of thermal energy

Transfer of thermal energy — practice question

The diagram illustrates the space between a hot surface and a cold surface. That space may be filled with air, solid iron, a vacuum or liquid water. Which row indicates whether heat may move between the surfaces by conduction and convection?

  • Aair (gas): conduction yes, convection no
  • Biron (solid): conduction yes, convection no
  • Cvacuum: conduction no, convection yes
  • Dwater (liquid): conduction yes, convection no

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