What occurs to the frequency of particle collisions with container walls when the volume of a gas decreases (Pressure in gases (physics only)) ? P43-051 Pressure in gases (physics only) checkpoint

The correct answer is The frequency increases ? P43-051 density measurement and calculation.

Comparison lens: State both sides of the comparison so the contrast is explicit rather than implied. This question asks: What occurs to the frequency of particle collisions with container walls when the volume of a gas decreases (Pressure in gases (physics only)) ?. The correct response is The frequency increases ? P43-051 density measurement and calculation, because density links mass and volume, so the answer must preserve which quantity is being calculated. In Pressure in gases (physics only), the marking point should connect directly to (Physics only) Interpret pressure-volume data for a fixed mass of gas at constant temperature. 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 569 is distinct because it uses this exact question context and the comparison lens rather than a generic particle-model sentence.