heat transfer and efficiency

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Heat can be transferred from place to place by conduction, convection and radiation. Dark matt surfaces are better at absorbing heat energy than light shiny surfaces. Heat energy can be lost from homes in many different ways and there are ways of reducing these heat losses.

There are several different types of energy, and these can be transferred from one type to another. Energy transfer diagrams show the energy transfers in a process. More efficient devices transfer the energy supplied to them into a greater proportion of useful energy than less efficient devices do.

Conduction, convection, radiation
Reducing heat loss
Forms of energy
Energy transfer
Efficiency
Test on heat transfer & efficiency
Test on energy efficiency

[ This page has been adapted from www.bbc.co.uk/schools/gcsebitesize/science ]