Q 2
Question

State whether the following statements are True or False. (i) A force is always required to change the speed of motion of an object. (ii) Due to friction, the speed of a ball rolling on a flat ground increases. (iii) There is no force between two charged objects placed at a small distance apart.

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Answer
(i) True, (ii) False, (iii) False.

Explanation

  • (i) True — a force is needed to change an object's speed.
  • (ii) False — friction decreases the ball's speed, it does not increase it.
  • (iii) False — charged objects do exert an electrostatic force on each other across a distance.
Force changes speed; friction slows things; charges do exert force from a distance.
← Back to concept: 5.2 What Can a Force Do to Objects?
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