1
Q
Friction
A
Two surfaces in contact with each other
2
Q
State the five ways of reducing friction
A
Streamlining Polishing Rolling Blowing gas between two surfaces Lubricating
3
Q
Viscosity
A
The amount of internal friction in a liquid - it affects how fast an object can move through it
4
Q
Air resistance
A
Friction, or drag, that acts on something moving through air
5
Q
What effects friction produces
A
Heat
Wear and Tear
Speed
Year 7 Forces 2022
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