In physics, work done is measured in joules. A joule is defined as the amount of work done when a force of one newton is applied over a distance of one meter in the direction of the force. This relationship highlights the connection between force, distance, and work, making joules the standard unit for measuring work in the International System of Units (SI).
Other units mentioned, such as pascals, newtons, and watts, do not measure work directly. Pascals are used to measure pressure, newtons measure force, and watts measure power, which is the rate at which work is done over time. Understanding these distinctions is crucial for grasping the fundamentals of physics and how work is quantified.