Loading…
Loading…
GCSE Physics · key term
A substance placed between moving surfaces to reduce friction.
Used by AQA and Edexcel
Specification 4.1.2.1 · Paper 1
Revise: Reducing Unwanted Energy TransfersA lubricant such as oil forms a layer between the surfaces. This reduces direct contact between their irregular surfaces and therefore reduces friction. Less work is then done against friction, so less energy is dissipated by heating.
Specification 3.9, 9.10 · Paper 1, Paper 2
A substance such as oil or grease placed between moving surfaces to reduce friction.
Create a free account to read GCSE Physics revision notes for your exam board and track your progress.
A lubricant such as oil or grease is placed between the moving surfaces. It allows them to move past one another with less friction. Less work is then done against friction, so less energy is transferred by heating and dissipated to the surroundings.
A substance placed between surfaces to reduce friction as they move over one another.