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Efficiency
AQA GCSE Physics (8463) — Energy
What You Need to Know
Calculate energy efficiency for any energy transfer using the equation:
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efficiency = \frac{useful\ output\ energy\ transfer}{total\ input\ energy\ transfer}
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Calculate efficiency using the equation:
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efficiency = \frac{useful\ power\ output}{total\ power\ input}
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Describe ways to increase the efficiency of an intended energy transfer (HT only).
Revision Notes
1
Efficiency
12 key terms
Practise with Past Papers
Key Terms & Definitions
Previous Subtopic
Energy transfers in a system
Next Topic: Energy Resources
National and global energy resources
