Particle Model & Pressure Quiz
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5 questions, one answer each
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1. What causes the pressure exerted by a gas on its container?
- A. The weight of the gas
- B. Particles colliding with the container walls
- C. Friction between particles
- D. Gravity pulling particles down
2. What is absolute zero on the Celsius scale?
- A. 0 °C
- B. −100 °C
- C. −273 °C
- D. −373 °C
3. Convert 27 °C to kelvin.
- A. 27 K
- B. 246 K
- C. 300 K
- D. 273 K
4. A fixed mass of gas at constant temperature has its volume halved. What happens to its pressure?
- A. Halves
- B. Stays the same
- C. Doubles
- D. Quadruples
5. A bicycle pump gets noticeably warm when the outlet is blocked and the plunger pushed in quickly. What best explains this?
- A. Friction between the pump and the ground
- B. Work done compressing the gas increases particle kinetic energy, raising temperature
- C. The gas loses pressure
- D. The plastic pump material generates heat on its own