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Efficiency Equation — Power and Efficiency — Edexcel GCSE Physics 1PH0
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Physics
Edexcel GCSE Physics
Energy – forces doing work
Power and Efficiency
Efficiency Equation
Edexcel GCSE Physics · 1PH0
Efficiency Equation
What you need to know
Recall and use the equation for efficiency:
efficiency
=
useful energy transferred by the device
total energy supplied to the device
\text{efficiency} = \frac{\text{useful energy transferred by the device}}{\text{total energy supplied to the device}}
efficiency
=
total energy supplied to the device
Revision notes
1
Efficiency Equation
4 key terms
Practise with past papers
Key terms & definitions
Previous subtopic
Watt Definition
Next section: Forces and their effects
Object Interactions
useful energy transferred by the device
