Sometimes, friction is useful to us

Due to lack of friction,there may be risk of accident

We may need to increase friction to prevent slipping and function properly

This is done by various methods as shown below

 

Example 1

Sole of shoe is grooved(rough). This increase friction and prevents us from slipping

Example 2

Tyres are treaded so that it does not skid and stop immediately when brakes are applied

 

Example 3

Studs (Football shoes) have spikes in it

This also helps in increases friction

When the footballer runs,it prevents him from slipping

 

Example 4

Kabaddi Player wipe their hand with dry sand

This is done to increase friction in hands of player

So their hands do not skid when they touch other player's sweaty hands and legs

 

Example 5

Bowlers wipe ball with dry cloth

When there is dew,bowlers are not able to spi the ball because bal is wet and there is less friction and they are not able to hold it properly.

So they wipe ball with dry cloth to increase friction and make ball spin

Increasing Friction.jpg

  1. Class 8
  2. Chapter 12 Class 8 - Friction

About the Author

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 9 years and a teacher from the past 16 years. He teaches Spoken English, Written English, Grammar and Vocabulary at Englishtan.