Topic 8 – Energy – forces doing work


8.1 Describe the changes involved in the way energy is stored when systems change 

8.2 Draw and interpret diagrams to represent energy transfers 

8.3 Explain that where there are energy transfers in a closed system there is no net change to the total energy in that system

8.4 Identify the different ways that the energy of a system can be changed

a through work done by forces

b in electrical equipment

c in heating 

8.5 Describe how to measure the work done by a force and understand that energy transferred (joule, J) is equal to work done (joule, J) 

8.6 Recall and use the equation:  work done (joule, J) = force (newton, N) × distance moved in the direction of the…


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