5.5.143 - Condition for simple harmonic motion

Understand that the condition for simple harmonic motion is F = − kx, and hence understand how to identify situations in which simple harmonic motion will occur.

Use - condition for simple harmonic motion to connect the rule to the data and decision in the question.

This matters because - condition for simple harmonic motion determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - condition for simple harmonic motion to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Condition for simple harmonic motion is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.