Which statement explains why atmospheric pressure increases as you descend from a high mountain to sea level?
The number of air molecules in the atmosphere above you increases, which increases the weight of the air pushing down.
The density of the air decreases as you descend.
The temperature of the atmosphere decreases as you get closer to sea level.
The force of gravity decreases as you get closer to the center of the Earth.
33 exam-style questions on OCR GCSE Physics Pressure. Each one has a worked solution and a mark scheme showing where the marks go.