Lesson: Chapter 11 — Turning Effect of a Force

11.1. Moment of a force 10 of 16 Reset answers

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Question 10

If the perpendicular distance is doubled while the force stays the same, what happens to the moment?

A It stays the same B It is halved C It is doubled D It becomes four times as large

The right answer is the one marked above.

It is doubled. Since moment = force × distance, doubling one of the two factors doubles the product.

It becomes four times as large only if both the force and the distance are doubled. Here only one factor changed.

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