1.3.19 - Gravitational potential energy

Be able to use the equation ∆Egrav = mg∆h for the difference in gravitational potential energy near the Earth’s surface.

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

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

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

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