Calculate changes in energy when a system is changed by heating.

Heating calculations centre on E = mc??. In the Energy stores and systems subtopic, the evidence is a material changing temperature, so the quantities are mass, specific heat capacity, and temperature change. This is not a force-distance calculation and not an electrical transfer question. A clear solution names the thermal or internal energy store, substitutes kg, J/kg?C and ?C or K correctly, calculates joules, and explains that energy has been transferred by heating into or out of the material. In exam answers, include the named Energy stores and systems context, state the relevant equation or energy principle, and finish with a sentence that explains what has physically changed in the system.