elasticity in physics

Elasticity in physics refers to the ability of a material to return to its original shape and size after being deformed by an external force, such as stretching, compressing, or bending. When the force is removed, an elastic material restores itself without permanent deformation, obeying Hooke’s Law for small strains. The degree of elasticity varies among materials; metals and rubber are highly elastic, while glass and plastics are less so. Elasticity is essential in many applications, like suspension systems and musical instruments, enabling materials to absorb and release energy efficiently.