Multiple choice

Which of the following statements is false?

  1. Friction can slow things down.

  2. Friction is never useful.

  3. Friction depends on the nature of surfaces in contact.

  4. Friction can stop things from moving.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Friction is sometimes useful. It is important for many of our activities like writing with a pen, fixing a nail on the wall, tying a knot, etc.

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