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


Friction is both a friend and a foe to us


Friction is a friend because

It helps us walk without slipping

Moving objects Stop

Picking and Holding Things


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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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.