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🔬 Science 13 minLesson 12 of 50
Energy & transfers
Stores, pathways and efficiency.
What you will learn
- Energy is conserved: it transfers between stores, it is never used up.
- Useful energy is the output you wanted; the rest is wasted as heat.
- Efficiency equals useful output divided by total input.
GCSE Physics: Revision Guide | Energy Stores and Transfers
Flash Revision Lab · plays in StudyAI
Watch once, then work through the practice sheet.
Practice sheets
3 printable PDFs1
Recall drill
5 questions · write-in answer lines
2
Apply it
4 questions · write-in answer lines
3
Test yourself
4 questions · write-in answer lines
Interactive quiz
Question 1 of 2Energy is…
