The newest 19 of 19 written questions. Open one to see it on the real paper.
As the motorcycle moves along the road, the air in the tyres warms up. Describe how the motion of the air particles in the tyres changes as the air warms up.
See it on the paper →Which row describes the most likely conditions that exists at midday?
See it on the paper →What happens to the pressure of the gas and what happens to the average speed of the gas particles?
See it on the paper →The temperature of a fixed volume of hydrogen gas is increased. State the effect of this increase on the pressure of the hydrogen gas.
See it on the paper →State what happens to the motion of the air particles as the air warms up. (b) The temperature of the air in the tyres increases during the journey.
See it on the paper →The steam in the boiler has a constant volume. State what happens to the pressure of the steam if the temperature of the steam is increased.
See it on the paper →As the cyclist rides along the road, the temperature of the air in the tyres increases. Describe the change in the motion of the air molecules.
See it on the paper →Candidates often stated that either the temperature or volume had increased rather than talking about the effect on pressure. Other candidates described the effect on the particles rather than the effect on pressure. Candidates need to answer the specific question asked, in this case the effect on pressure.
— Examiner report, May/June 2025, 0654/31 Q5(c) (Cambridge)
Many candidates described increased collisions rather than describing the change in motion. Others just gave the idea of particles having more energy which was too vague as a response describing kinetic energy or speed of particles was required.
— Examiner report, May/June 2025, 0654/33 Q9(b) (Cambridge)
Many candidates correctly described the change in motion of the air molecules as moving faster.
— Examiner report, October/November 2023, 0654/33 Q12(b)(ii) (Cambridge)
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The refrigerator uses the compression and expansion of gases in order to transfer thermal energy to the outside of the refrigerator. Complete Table 6.1 to show how the pressure of a fixed mass of gas changes with temperature and with volume. Table 6.1 temperature volume increases kept constant remains constant increase...
Explain, in terms of particle movement, why the marble expands.
See it on the paper →On a hot, sunny day the marble steps feel cold because of conduction. Describe the process of conduction in marble.
See it on the paper →Explain why conduction causes the marble to feel cold.
See it on the paper →Describe the results shown in Fig. 12.3.
See it on the paper →A student suggests repeating the experiment with a non-flammable balloon filled with gas rather than a sealed container. Explain why this method would not produce the graph shown in Fig. 12.3.
See it on the paper →Which change increases the sensitivity of a liquid-in-glass thermometer?
See it on the paper →Fig. 12.2 shows a syringe filled with a gas similar to the sample shown in Fig. 12.1. The syringe is attached to a pressure gauge which measures the pressure of the gas. cm 3 pressure gauge 20 15 10 5 syringe Fig. 12.2 Describe what causes the pressure in the sample of gas in terms of molecular motion.
See it on the paper →Use Fig. 12.3 to determine the volume of the sample of gas when the pressure is 500 kPa. volume = cm 3
See it on the paper →Explain why increasing the temperature of a sample of gas, while keeping the volume constant, causes an increase in pressure.
See it on the paper →What is happening to the liquid?
See it on the paper →How do the boiling point and the melting point of this substance compare with 65 °C?
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