1.4.27 - Hooke’s law

Be able to use the Hooke’s law equation, ∆F = k∆x, where k is the stiffness of the object.

Use - hooke’s law to connect the rule to the data and decision in the question.

This matters because - hooke’s law determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - hooke’s law to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Hooke’s law is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.