A sealed syringe contains a fixed amount of gas. The plunger of the syringe is pushed inwards, reducing the volume of the gas.
What happens to the mass and to the density of the gas inside the syringe?
Mass: decreases; density: decreases
Mass: decreases; density: increases
Mass: no change; density: decreases
Mass: no change; density: increases
169 exam-style questions on CIE IGCSE Physics Density, covering Density. Each one has a worked solution and a mark scheme showing where the marks go.