· 4.5 describe a variety of everyday and scientific devices and situations, explaining the fate of the input energy in terms of the above relationship (see 4.4), including their representation by Sankey diagrams
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[cid:image003.png@01CC30D5.57D66F20] Created with Microsoft OneNote 2010 by MABA
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Energy Value: Wasted heat – 400J, heat to water – 1000J, sound energy – 600J
Kettle efficiency: 0.5
Energy converted to useful energy: 120J
Computer efficiency: 0.8 
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> Inserted from: >
[cid:image002.png@01CC30D5.57D66F20]
[cid:image003.png@01CC30D5.57D66F20] Created with Microsoft OneNote 2010 by MABA
One place for all your notes and information
Energy Value: Wasted heat – 400J, heat to water – 1000J, sound energy – 600J
Kettle efficiency: 0.5
Energy converted to useful energy: 120J
Computer efficiency: 0.8
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