What happens to the internal energy of a substance when it is heated ? P43-014 Temperature changes in a system and specific heat capacity checkpoint

The correct answer is It increases ? P43-014 density measurement and calculation.

Cause lens: Name the cause, then state the effect on particles, pressure, density, or energy. This question asks: What happens to the internal energy of a substance when it is heated ?. The correct response is It increases ? P43-014 density measurement and calculation, 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 identify change in thermal energy in joules, mass in kilograms, specific heat capacity in joules per kilogram per degree Celsius and temperature change in degrees Celsius. 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 292 is distinct because it uses this exact question context and the cause lens rather than a generic particle-model sentence.