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Quiz: Efficiency Calculations and Improving Efficiency
AQA GCSE Combined Science specification.
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Welcome! Building on what you've learned about energy transfers and conservation, this quiz will test your knowledge of efficiency calculations and ways to improve efficiency. Let’s get started!
What is the formula for calculating efficiency?
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Which of the following methods can improve efficiency in a system? (Select all that apply)
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The efficiency of a device is always less than {{blank0}} because some energy is {{blank1}} as heat.
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Match the items on the left with their correct pairs on the right
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Match the items on the left with their correct pairs on the right
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Which energy transfer method often causes energy loss in machines?
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Which of the following devices are designed to improve efficiency? (Select all that apply)
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Match the items on the left with their correct pairs on the right
A Sankey diagram visually represents energy transfers, showing {{blank0}} energy and {{blank1}} energy.
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