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A force that acts on an object moving along a circle and is always directed towards the centre of the circle is called:
ATangential force
BCentrifugal force
CFrictional force
DCentripetal force
Answer & Solution
Correct answer: D. Centripetal force
1. An object moving along a circle continuously changes its direction of motion, so a force must act on it.
2. While whirling a stone tied to a string, we pull it towards the centre of the circle.
3. This centre-seeking force directed towards the centre is the centripetal force.
4. ('Centripetal' literally means centre seeking.)
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 1 "Gravitation", p.11_
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