Question

Match the diagrams with their popular application of friction.

• A. Wear and tear
• B. Holding things
• C. Heat generation

Answer 1

• Friction causes wear and tear. Because of this, soles of shoes wear out over long period of time.
• When we hammer a nail into a wall, it is friction which holds the nail in the wall.
• When we rub our hands together, our hands feel warm. This is a very common example where heat is produced due to friction.