Hooke’s Law - GCSE Physics Definition

Hooke’s Law is a fundamental principle in physics which states that, for elastic materials within their limit of elasticity, the extension or compression of a spring is directly proportional to the force applied to it.

This means that if you double the force on an elastic object, the extension will also double, provided the material is not stretched beyond its elastic limit. The relationship can be expressed with the formula:

F = k × e

where :

• F = force in newtons (N)

• k = spring constant in newtons per metres (N/m)

• e = extension in metres (m)

Understanding Hooke’s Law is crucial for GCSE Physics students as it helps explain everyday phenomena like the operation of springs and elastic bands.