Which of the following units is used to measure work?

The unit used to measure work is Joules. Work is defined in physics as the product of force applied to an object and the distance over which that force is applied. Mathematically, work can be expressed as W = F × d, where W is work, F is force, and d is distance.

In the International System of Units (SI), the unit of measurement for work is the Joule. One Joule is equal to the work done when a force of one Newton is applied over a distance of one meter. This relationship highlights the relevance of the Joule in calculating work, as it directly incorporates both the force and distance involved.

While other units like Pascals, Watts, and Newtons are related to different physical quantities—Pascals measure pressure, Watts measure power (the rate of doing work), and Newtons measure force—none of these units measure work directly. Thus, Joules is the correct answer for measuring work.