Question

Pick the INCORRECT statement among the following.

• A. The soles of the shoe are grooved to provide less friction while walking.
• B. Kabaddi players rub their hands with rough soil for better grip.
• C. Writing on a rough board is easy because a rough surface rubs off chalk easily.
• D. It is difficult to hold things with oily hands because a smooth surface provides less friction.

Answer 1

The correct option is A The soles of the shoe are grooved to provide less friction while walking.

Friction is a necessary evil required for different day-to-day activities.
Soles of shoes are grooved, as they provide more friction and a better grip to walk.
Friction also helps us to sit, hold things etc in our day-to-day activities.