Hooke’s Law describes how elastic materials like springs behave when stretched or compressed. It states that the restoring force required to change the length of a spring is directly proportional to the displacement from its original, or equilibrium, position.
In simple terms, the more you pull or push on a spring, the more force it resists with—and that force increases linearly as long as the spring isn’t stretched beyond its elastic limit. This linear relationship holds true for many elastic materials within a certain range of deformation.
Hooke’s Law is fundamental in engineering and physics because it helps predict how materials will respond to forces. It’s used in designing everything from suspension systems and measuring instruments (like force sensors) to understanding vibrations in mechanical systems.