Question

Write any four methods for reducing friction

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Answer 1

1)Friction can be reduced by making the surface smooth by polishing.

2)Friction can be reduced by applying lubricants (like oil or grease) to the rubbing surface.

3)Friction can be reduced by using wheels to move objects.

4)Friction can be reduced by using ball bearing between the moving parts of machine.

Answer 2

Answer:

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Methods for decreasing friction:

• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.
• Lubrication is another way to make a surface smoother. ...
• Make the object more streamlined. ...
• Reduce the forces acting on the surfaces. ...
• Reduce the contact between the surfaces.