#8
4.1.2.2 Efficiency
Paper 1 · Higher combined
Spec reference: 4.1.2.2 (HT only).
Triple-only content in this dot
- Describe ways to increase efficiency of an intended energy transfer.
- Use efficiency equations as decimal or percentage and justify design choices (insulation, lubrication, reduced resistance/friction).
Exam quick-check
- Can I identify this as a triple-only point from wording in the question?
- Can I apply the correct equation/idea with units and a clear conclusion?