Question detail
How does increasing the temperature of a gas affect the average kinetic energy of its particles (Pressure in gases (physics only))
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Particle model and pressure
Question
- A. It decreases the average kinetic energy
- B. It has no effect on the average kinetic energy
- C. It increases the average kinetic energy
- D. It causes the particles to stop moving
Answer
The correct answer is It increases the average kinetic energy.
Explanation
Comparison lens: State both sides of the comparison so the contrast is explicit rather than implied. This question asks: How does increasing the temperature of a gas affect the average kinetic energy of its particles (Pressure in gases (physics only)). The correct response is It increases the average kinetic energy, 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) Apply MS 3b, MS 3c and MS 4a skills when calculating or interpreting pressure-volume relationships. 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 581 is distinct because it uses this exact question context and the comparison lens rather than a generic particle-model sentence.
Common mistake
Misunderstanding Pressure-Volume Relationship
Students often confuse the relationship between pressure and volume, thinking that increasing the volume always increases the pressure.
Remember that for a fixed mass of gas at constant temperature, increasing the volume decreases the pressure, while decreasing the volume increases the pressure.
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