Why does a gas get hotter when compressed quickly?

The correct answer is The work done on the gas increases particle kinetic energy.

Boundary lens: Keep this separate from nearby specification points that use similar words but test a different idea. This question asks: Why does a gas get hotter when compressed quickly. The correct response is The work done on the gas increases particle kinetic energy, 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) Link work done on gas particles to increased particle kinetic energy. 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 610 is distinct because it uses this exact question context and the boundary lens rather than a generic particle-model sentence.