Multiple choice

Which of the following is not a method of increasing friction?

  1. It can be increased by making grooves in shoe soles.

  2. It can be increased by making treads in tyres of vehicles.

  3. It can be increased by making the surfaces smooth.

  4. It can be increased by providing spikes in shoes of players and athletes.

  5. It can be increased by the use of some coarse substance on the hands of gymnasts.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option as this is not a method to increase friction. Friction can be reduced by making the surfaces smooth by polishing.

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