How does compressing a gas quickly affect its temperature?

The correct answer is The temperature increases..

Boundary lens: Keep this separate from nearby specification points that use similar words but test a different idea. This question asks: How does compressing a gas quickly affect its temperature. The correct response is The temperature increases., because gas pressure comes from particle collisions with container walls. In Increasing the pressure of a gas (physics only) (HT only), the marking point should connect directly to (Physics only) (HT only) Explain that increasing internal energy can increase the temperature of a gas. 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 Particle model and pressure, 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 598 is distinct because it uses this exact question context and the boundary lens rather than a generic particle-model sentence.