A glider carries an air sampler while descending from 6000 m to 1500 m and then to ground level. At each altitude, it collects the same volume of surrounding air.
Which sample contains the fewest air molecules?
The sample collected at 6000 m
The sample collected at ground level
The three samples contain equal numbers of molecules
The sample collected at 1500 m
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.