This hooke s law diagram demonstrates That stress and strain take various forms in different situations. Hooke's Law shows that stress and strain are proportional to each other for small deformations, as illustrated in this hooke s law diagram. When elastic materials are stretched, the atoms and molecules deform until stress is applied, and then they return to their original form when the stress is removed. Depending on the material, different springs will have different constants, which can be calculated. The figure depicts three situations: the spring in its stable state, the spring elongated to an amount x under a load of 1 N, and the spring elongated to 2x under a pack of 2 N.