What happens when you pull a spring?

When you pull a spring, it stretches and stores potential energy due to the deformation of its material. This elastic potential energy is a result of the spring's tendency to return to its original shape when the force is removed. The force exerted by the spring is proportional to the distance it is stretched, according to Hooke's Law, which states that the force is equal to the spring constant multiplied by the displacement. If the spring is pulled beyond its elastic limit, it may become permanently deformed.