MEDIUM
9th Maharashtra Board
IMPORTANT
Earn 100

If an object has zero momentum, does it have kinetic energy? Explain your answer.

Important Questions on Work and Energy

HARD
9th Maharashtra Board
IMPORTANT

Why is the work done on an object moving with uniform circular motion zero?

MEDIUM
9th Maharashtra Board
IMPORTANT

For work to be performed, energy must be:

MEDIUM
9th Maharashtra Board
IMPORTANT

Joule is the unit of:

MEDIUM
9th Maharashtra Board
IMPORTANT

Which of the forces involved in dragging a heavy object on a smooth, horizontal surface, have the same magnitude?

MEDIUM
9th Maharashtra Board
IMPORTANT

Power is a measure of the:

MEDIUM
9th Maharashtra Board
IMPORTANT

While dragging or lifting an object, negative work is done by:

MEDIUM
9th Maharashtra Board
IMPORTANT

The potential energy of your body is least when you are _____.

(Choose from: sitting on a chair, sitting on the ground, sleeping on the ground, standing on the ground)

MEDIUM
9th Maharashtra Board
IMPORTANT

The total energy of an object falling freely towards the ground _____.

(Choose from: decreases, remains unchanged, increases, increases in the beginning and then decreases)