Spec 1PH0
Revise Edexcel GCSE Physics 9.3.1 Reducing unwanted energy transfer through lubrication with the revision guides.
Explain ways of reducing unwanted energy transfer through lubrication Use of mathematics ● Make calculations using ratios and proportional reasoning to convert units rates (1c, 3c). ● Use vector diagrams to illustrate resolution of forces, a net force, equilibrium situations (scale drawings only) (4a, 5a, 5b). Suggested practicals ● Investigate levers and gears.
