Multiple choice

Which of the following is not a negative effect of friction?

  1. A child is able to write with a pencil.

  2. Worn out soles in an old shoe

  3. Wearing out of tyres of vehicles

  4. Ball bearing in a machine wearing out

  5. Machine working for a long time producing too much heat
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Writing with a pencil or pen will not be possible without friction.

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