Hooke's Law

What is Hooke's Law?

Hooke's law states that the extension of a spring is directly proportional to the load applied, provided the limit of proportionality is not exceeded. It is written F = kx, where k is the spring constant, defined as force per unit extension and measured in newtons per metre.

This definition is part of the Motion, Forces and Energy chapter in Cambridge O Level Physics.

Concepts related to Hooke's Law

• extension
• limit of proportionality
• elastic strain energy
• force meter