A weather balloon rises from the ground up into the upper atmosphere. What happens to the atmospheric pressure acting on the balloon?
It increases steadily
It decreases steadily
It stays the same
It increases then falls
108 exam-style questions on AQA GCSE Physics 5.5 Pressure and pressure differences in fluids, covering 5.5.1 Pressure in a fluid and 5.5.2 Atmospheric pressure. Each one has a worked solution and a mark scheme showing where the marks go.