In physics many times words have meanings that are not consistent with how these same words are used in everyday life.
Work relates to how a force acts while a system undergoes a displacement.
If no displacement occurs, then in the realm of physics, no work is done. For the same displacement, a larger force does more work. However, work in the physics sense is even more strange because if the force is perpendicular to the displacement then no work is done. Suppose the displacement is a differential displacement given by, d r . Previously we studied adding and subtracting vectors.