This study notes covers Sankey diagram — energy flow within Efficiency for GCSE Physics. Revise Efficiency in Energy for GCSE Physics with 19 exam-style questions and 4 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 14 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 14
Practice
19 questions
Recall
4 flashcards
Figure: Sankey diagram — energy flow
Keep building this topic
Read this section alongside the surrounding pages in Efficiency. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Efficiency
Which equation correctly defines efficiency?
Explain one method that can be used to reduce unwanted energy transfers in a machine and state how it reduces waste.
Quick Recall Flashcards
19 questions on Efficiency — practise free
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