A metal block has a thermal energy change of 5000 J when its temperature increases by 25 °C. If the specific heat capacity of the metal is 200 J/kg°C, calculate the mass of the metal block (Temperature changes in a system and specific heat capacity)

1 kg

Cause lens: Name the cause, then state the effect on particles, pressure, density, or energy. This question asks: A metal block has a thermal energy change of 5000 J when its temperature increases by 25 °C. If the specific heat capacity of the metal is 200 J/kg°C, calculate the mass of the metal block (Temperature changes in a system and specific heat capacity). The correct response is 1 kg, because density links mass and volume, so the answer must preserve which quantity is being calculated. In Temperature changes in a system and specific heat capacity, the marking point should connect directly to calculate mass when thermal energy change, specific heat capacity and temperature change are known. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Internal energy and energy transfers, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 304 is distinct because it uses this exact question context and the cause lens rather than a generic particle-model sentence.