Question

what is Increasing and Reducing Friction ​

Answer 1

Answer:

There are two methods of increasing friction: one is by making the surfaces rough and the other by increasing the mass of the object that is moving. For example, the tyres of vehicles have treads (these are the 'designs' that you can see on the tyre surface), which increase the friction between the tyre and the road.

Friction can be reduced by. Polishing the rough surface. Oiling or lubricating with graphite or grease the moving parts of a machine. Providing all bearings or wheels between the moving parts of a machine or vehicles reduce friction and allow smooth movement as rolling friction is less than sliding friction.

Answer 2

• Friction may be increased by roughening surfaces and increasing the mass of the moving object.
• Treads (the 'pattern' visible on the rubber surface) on vehicle tyres, for example, increase tyre-road friction.
• Friction may be reduced by lowering the friction coefficient.
• The roughness of the surface will be smoothed off. The moving components of a machine are lubricated with graphite or grease.
• Because rolling friction is less than sliding friction, having all bearings or wheels between moving parts of a machine or vehicle decreases friction and allows for smooth operation.