M3.2.1 - Elastic strings and springs

Elastic strings and springs.; Hooke’s law.

Use elastic strings and springs to connect the rule to the data and decision in the question.

This matters because elastic strings and springs determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply elastic strings and springs to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: Elastic strings and springs is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.