Stiffness

Stiffness refers to the resistance of an object to deformation when a force is applied. In simpler terms, it measures how much an object will bend, stretch, or compress under pressure. For example, a stiff material like steel will not change shape easily when you push or pull on it, while a softer material like rubber will stretch or compress more easily. Stiffness is an important concept in engineering and physics, as it influences how structures and materials behave under various loads and stresses, ensuring they maintain their shape and strength in different conditions.