Question

Different methods to reduce and increase friction

Answer 1

Answer:

Methods to reduce friction—

1. Polishing
2. Lubricating (oiling/greasing)
3. By using ball bearings

Methods to increase friction—

1. By applying coarse powder
2. By making the surface rough

Answer 2

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Methods of increasing friction:-

1) By making the surface rough.

2)By removing all the lubricants.

3)By increasing the mass of the body

Methods of decreasing friction:-

1)By using lubricants.

2)By making the body streamlined

3)By using ball bearings.