1.3.18 - Kinetic energy

Use Ek = ½mv² for the kinetic energy of a body.

Use - kinetic energy to connect the rule to the data and decision in the question.

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

Example: apply - kinetic energy to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Kinetic energy is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.