Which of the following quantities is measured in Joules?

The correct choice is work, which is measured in Joules. In physics, the Joule is the SI unit of work and energy. When work is done, it refers to the transfer of energy that occurs when an object is moved over a distance due to an applied force. The relationship is defined mathematically as work equal to force applied over a distance in the direction of the force (W = F × d).

This connection between work and energy is fundamental because work done on an object results in a change in its energy. For example, when lifting an object off the ground, the energy supplied in the form of work increases the gravitational potential energy of the object.

Power, while related, is not measured in Joules; rather, it is the rate at which work is done or energy is transferred, typically measured in Watts. Force is measured in Newtons, and energy has the same unit as work, Joules, but it encompasses a broader range of forms beyond just the work done on an object.