A ship sails from the sea into a freshwater river. Sea water has a greater density than fresh water. What happens to the ship?
It sits lower, because more water must be displaced in the river
It sits higher, because more water must be displaced in the river
It sits lower, because less water must be displaced in the river
It sits higher, because less water must be displaced in the river
41 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.