A student says that a gas becomes warmer when it is compressed because the molecules have less room and so collide with each other more often. Which statement explains why the student is wrong?
The molecules of a gas do not collide with each other when compressed.
The temperature rises because work done by the piston raises the energy.
Collisions between gas molecules always transfer energy to the walls.
The molecules of a compressed gas move more slowly than they did before.
40 exam-style questions on AQA GCSE Physics 3.3 Particle model and pressure, covering 3.3.1 Particle motion in gases, 3.3.2 Pressure in gases, and 3.3.3 Increasing the pressure of a gas (HT only). Each one has a worked solution and a mark scheme showing where the marks go.