14+ Hooke's Law Graph Images. Hooke's law is a law of physics that states that the force (f) needed to extend or compress a spring by some distance (x) scales linearly with respect to that distance—that is, fs = kx, where k is a constant factor characteristic of the spring (i.e., its stiffness). Because hooke's law is linear, we expect that if we double the mass hanging on a spring, the length of the spring will double.
Provided that the limit of proportionality is not exceeded, a graph of stretching force against extension is a straight line through.
Hooke's law states that for an elastic spring, the force and displacement are proportional to each other. When the elastic materials are stretched, the atoms and molecules deform until. It states that when a force is applied to a spring, the displacement of that spring will be directly proportional to the amount. (isotropic means that it has equal stiffness in every direction.)