example each for Reduced friction and increase friction
Answers
Answered by
2
Explanation:
REDUCING FRICTION
Grease is added between the moving parts in machines,
INCREASING FRICTION
When ball bearings are introduced between two surfaces friction is reduced because of the freely rotating metal balls. To increase friction, the surfaces in contact have to be made rough.
Hope it will help you
Answered by
1
Explanation:
Grease is added between the moving parts in machines, to reduce friction
eg: between door to reduce friction and loosen it
To increase friction, the surfaces in contact have to be made rough.
eg : when 2 stones were used to light fire
Similar questions