A rigid, sealed metal canister filled with gas is moved from a warm room into a cold freezer.
What happens to the average speed of the gas molecules and to the pressure of the gas in the canister as the temperature decreases?
Average speed falls; gas pressure falls
Average speed falls; gas pressure rises
Average speed rises; gas pressure falls
Average speed rises; gas pressure rises
126 exam-style questions on CIE IGCSE Physics 2.1.3a The absolute scale of temperature. Each one has a worked solution and a mark scheme showing where the marks go.