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  • Heat can be transferred from place to place by conduction, convection and radiation.
  • dark matt sufaces are better at absorbing heat enegry than light shiny surfaces.
  • energy can be lost from homes in many different ways but there are ways to solve this.

Heat transfer by conduction and convention

  • Heat is a thermal energy.
  • it can be transferred from one place to another by conduction, convention and radiation.
  • conduation and convention involve particles, but radiation involves electromagnetic waves.


  • Heat energy can move through a substance by conduction.
  • Metals are good conductors of heat, but non-metals and gases are poor conductors.
  • Poor conductors of heat are called insulators.
  • The electrons in a piece of metal can leave their atoms and move about in the metal as free electrons.


  • Liquids and gases are fluids.
  • convention accours when particles with alot of heat energy in a lquid or gas move and take the place of particles with less energy.
  • Liquids and gases expand when they are heated.


  • All objects give out and take in thermal radiation, which is also called infrared radiation.
  • the hotter the object is the more infrared radiation it emits.
  • some surfaces are better than others at reflecting and absorbing…


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