A laboratory technician needs to determine whether a newly synthesized polymer block will float on the surface of a sample of oil. Which pair of quantities does the technician need to compare?
The density of the oil and the mass of the polymer block.
The density of the polymer block and the density of the oil.
The density of the polymer block and the mass of the oil.
The mass of the polymer block and the mass of the oil.
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.