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Conservation of energy
Efficiency and Energy Resources
Efficiency Equation
Efficiency Equation
Edexcel GCSE Physics (1PH0) — Conservation of energy
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
useful energy transferred by the device
Revision Notes
1
Efficiency Equation
7 key terms
Practise with Past Papers
Key Terms & Definitions
Previous Topic: Conservation and Dissipation
Thermal Conductivity and Cooling
Next Subtopic
Increasing Efficiency
