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Energy flow diagrams

Energy flow diagrams can illustrate how energy is transformed from one form of energy to other forms of energy.

There is often branching where one form of energy can be transformed into two or more other forms at the same time. The diagram shows a mobile phone in use.

Energy flow diagram for a mobile phone in use

Sketch energy flow diagrams for the following:

  1. matchstick that has just been struck
  2. portable laptop computer
  3. person running up a staircase
  4. gun being fired
  5. electric knife cutting bread
  6. netball player shooting a goal
  7. a television set.

You do not have to draw pictures of the devices. Boxes can be used to represent the devices.



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