Quiz: Efficiency Calculations and Improving Efficiency

AQA GCSE Combined Science specification.

11 Steps9 Questions

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Building on what you've learned about energy transfers and power, let's test your knowledge of efficiency calculations and how to improve efficiency!

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What is the formula used to calculate efficiency?

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Which of the following are ways to improve efficiency? (Select all that apply)

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Efficiency can never be greater than {{blank0}}%. This is because some energy is always {{blank1}}.

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Which of the following is an example of wasted energy?

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Which of these factors can reduce wasted energy? (Select all that apply)

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An efficient machine has a high proportion of useful energy and a low amount of {{blank0}} energy.

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Math EquationInteractive

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