Question

List down the methods to increase and to redues
friction
Method
to​

Answer 1

Answer:

What are the methods of reducing friction ? Explain

1)By using lubricants: friction increases as the roughness of the surface increases. ...

2)Polishing surfaces: It makes the surfaces even and hence reduces friction.

3)By using ball bearings: Rotating machines can be mounted on ball bearings. ...

4)By streamlining: streamlining reduces the area of contact and thus reduces friction

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Answer 2

Answer:

Methords of Increasing Friction are :

• One is by making the surface rough.
• The other is by increasing the mass of the object that is moving.

Methords of Decreasing Friction are :

• BY POLISHING - polishing surface reduce friction .
• By lubrication - friction is reduced by lubricating the surface with oil and grese .

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