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 and wasted energy, as well as Sankey diagrams!
What is useful energy?
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Which of the following describe wasted energy? (Select all that apply)
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In a Sankey diagram, the {{blank0}} arrow shows useful energy, while the {{blank1}} arrow shows wasted energy.
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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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A Sankey diagram represents energy transfers. What does the width of the arrows represent?
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Which statements about efficiency are correct? (Select all that apply)
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Match the items on the left with their correct pairs on the right
An electric kettle converts {{blank0}} energy into {{blank1}} energy, with some wasted as {{blank2}} energy.
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