Explain that heating changes the energy stored within a system by increasing particle energy.

Explain that heating changes the energy stored within a system by increasing particle energy. Graph lens: Read the trend, flat section, gradient, or axis labels before explaining the physical meaning. In Internal energy, this means the particle model explains the observable property using particles. The answer should use the approved wording from Internal energy and energy transfers, include heating, system, and avoid drifting into another section of Particle model of matter. For revision, practise saying the exact objective aloud, then add the one calculation, particle movement, collision, graph, or practical detail that makes the statement true. A strong exam response for checkpoint 32 is specific to explain that heating changes the energy stored within a system by increasing particle energy and does not reuse a generic explanation from a neighbouring objective.