Question

What are the methods of reducing friction

Answer 1

Answer:

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.

Answer 2

We now know that, in many situations friction is undesirable and we would want to minimise it.

There are many methods of reducing fiction.But, some of them which are common are given here :

1. Polishing – When we polish a surface, its roughness decreases there. The surface of that place become smooth and friction get reduced there. We also sometimes rub the surface with a fine sandpaper to reduce their roughness.

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2. Lubrication – We all know that when a few drops of oil are poured on the hinges of a door, the door moves much more smoothly. Bicycle and motor mechanic use grease between the moving parts of these machines. In all these cases, we want to reduce friction in order to increase efficiency. Oil-like substances, which help to reduce friction when put on a surface are known as lubricants.

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3. Ball-Bearings – We know that rolling friction is smaller than the sliding friction. Sliding can be replaced by rolling, (in most machines), by use of ball bearings. For example, we use ball-bearings in shafts of motor, dynamos, axles of vehicles, and so on.

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Therefore, this was some methods for reducing friction which were given here.