Check sibling questions

Give examples to show that friction is both a friend and a foe.

Answer

Friction is both a friend and a foe to us

frication-is-necessary-evil.jpg

Friction is a friend because

It helps us walk without slipping

Moving objects Stop

Picking and Holding Things

Writing

Lighting a matchstick

Fixing a Nail in Wall

 

Common image of advantages form Theory

 

Friction is our foe because

It wears out different products like

  • Soles of shoe
  • When we wear shoes,soles wear out after some time because of friction
  • Steps of bridges
  • Ball bearings
  • Tyres of car

 

It increases heat which may damage machines

It Slows down speed of Object

 

 

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo