What is the SI unit of measure for work?

The SI unit of measure for work is the Joule. In physics, work is defined as the transfer of energy that occurs when a force is applied to an object causing it to move in the direction of the force. Mathematically, work is calculated by the product of force and displacement in the direction of the force, expressed as W = F × d, where W is work, F is force, and d is displacement.

One Joule is equivalent to the amount of work done when a force of one Newton displaces an object one meter in the direction of the force. This definition links the unit of work directly to the units used for force (Newtons) and distance (meters), adhering to the SI standards for measurement.

While other options like Newtons, Kilowatts, and Foot pounds are measurements relevant to different physical concepts, they do not serve as the SI unit for work. Newtons measure force, Kilowatts relate to power (which is work done over time), and Foot pounds, used primarily in the Imperial system, is a measure of work but not in the SI framework. Hence, the correct answer relating specifically to work measurement within the International System of Units is indeed the Joule.