How does increasing temperature affect the average kinetic energy of particles (Internal energy)

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

Particle lens: Describe arrangement, motion, spacing, collisions, or energy changes only when they are relevant here. This question asks: How does increasing temperature affect the average kinetic energy of particles (Internal energy). The correct response is It increases the average kinetic energy., because changes of state are explained by particle energy and arrangement. In Internal energy, the marking point should connect directly to explain why energy transfer can change temperature without changing state. 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 252 is distinct because it uses this exact question context and the particle lens rather than a generic particle-model sentence.