During a long journey, friction with the road causes the air inside a car tyre to heat up, which increases the air pressure. The volume of the tyre remains constant and there are no air leaks.
Why does the pressure increase?
The air molecules in the tyre move more quickly.
The air molecules in the tyre increase in size.
The air molecules in the tyre stop colliding.
The volume of the air in the tyre decreases.
321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.