Question

Notes on friction-A necessity




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Answer 1

Answer:

Friction-A necessity

Friction plays an important part in many everyday processes. For instance, when two objects rub together, friction causes some of the energy of motion to be converted into heat. This is why rubbing two sticks together will eventually produce a fire.

Friction is also responsible for the wear and tear on bike gears and other mechanical parts. That's why lubricants, or liquids, are often used to reduce the friction — and wear and tear — between moving parts.

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Answer 2

Answer:

I have attached my notes on friction, do go through it!

Explanation:

Let me tell you further,

So basically it is friction which slows down any moving object on a surface as it acts in the opposite direction of the movement of the body therefore opposing it's motion (brings it to an end).

Because of friction we can..

• Write on paper with a pen without it slipping.
• We can walk without falling on the ground.
• Things can stay at a place instead of rolling or sliding down a surface.
• Provides something we call grip (water, oil or a smooth covering can reduce the impact of frictional force.)

What we can conclude.

• Friction is a necessary evil
• We cannot live without it, nothing would be stable and the simplest of simplest day to day activities will be extremely hard.
• Eventhough friction brings about wear and tear and damage and difficulty to move things, without it we will never get a grip on a surface.

We cannot possibly live in a frictionless world...

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