Multiple choice question I — task. Science CBSE, Class 9.

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1. Negative value of work done indicates that

(A) Force and displacement are in the same direction
(B) More than one force is acting on the object
(C) Displacement and force are in opposite directions
(D) Both (B) and (C)

2. A body moves through a distance of \(3\ m\) in the following different ways. In which case is the maximum work done?

when pushed over an inclined plane
when lifted vertically upward
when pushed over smooth rollers
when pushed on a plane horizontal surface.

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