How does increasing temperature affect the average kinetic energy of particles (Temperature changes in a system and specific heat capacity)

The correct answer is It increases the average kinetic energy of particles.

Boundary lens: Keep this separate from nearby specification points that use similar words but test a different idea. This question asks: How does increasing temperature affect the average kinetic energy of particles (Temperature changes in a system and specific heat capacity). The correct response is It increases the average kinetic energy of particles, 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 recall and apply the equation change in thermal energy = mass x specific heat capacity x temperature change. 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 286 is distinct because it uses this exact question context and the boundary lens rather than a generic particle-model sentence.