Question

Which of the following is considered as work in terms of science?

• A. Rohan lifitng his school bag
• B. Roshan waiting at the bus stop
• C. Pritish is thinking a lot to solve a question
• D. Puja tries to push a wall which doesn't move

Answer 1

The correct option is A

Rohan lifitng his school bag

In terms of science, we consider work to be done whenever we apply a force causing a change in the position of an object.

If Rohan lifts his school bag, here he applies force causing the movement of his school bag.

But on the other hand, all the three cases, there is no change in position, hence, scientifically no work is done.