Quiz: Useful vs Wasted Energy (and Sankey Diagrams)
AQA GCSE Combined Science specification.
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Building on what you've learned about energy transfers and conservation, let's test your understanding of useful vs wasted energy and Sankey diagrams!
What does a Sankey diagram show?
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Which of the following are examples of wasted energy in everyday appliances? (Select all that apply)
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Useful energy is energy transferred to perform a {{blank0}} task, while wasted energy is energy transferred to {{blank1}} forms.
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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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What happens to wasted energy in a system?
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Match the items on the left with their correct pairs on the right
Which factors can reduce wasted energy in a system? (Select all that apply)
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If an appliance has an efficiency of 75%, this means {{blank0}}% of the energy is wasted as {{blank1}} energy.
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