Thermal physics
376 past-paper questions on Thermal physics · examined 2020–2025.
20258 questions
A substance is heated. The substance changes state from a liquid to a gas. When the gas is cooled, it first becomes a liquid and finally a solid. What is the order of changes of state for this substance?
A glass bottle containing warm air is sealed with a screw cap and then cooled in cold water. The contraction of the glass bottle can be ignored. What remains the same during the cooling?
A gas is stored in a container of constant volume. The temperature of the gas is increased. What happens to the particles of the gas?
One end of a shiny metal rod is heated, and the other end quickly gets hot. Which statement describes why the other end quickly gets hot?
Vacuum flasks usually have silvered walls that help to keep the contents of the flask hot. Why are the walls silvered?
The temperature of the air in the atmosphere around us increases. Which row describes the change in the density of the air and which form of thermal energy transfer occurs as a result of this change?
A sample of a substance has a shape that is determined by its container. What are the possible states of this sample?
A stationary smoke particle is hit by a fast-moving nitrogen molecule. Which row describes the motion of the smoke particle and of the nitrogen molecule after the collision?
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