A student is given four different objects of known mass and a metre rule. She is asked to determine the densities of the materials from which the four objects are made.
The objects are:
Using only the metre rule to make measurements, she is able to find the densities of only three of the four materials.
Which three materials are these?
brass, wood, and iron
brass, wood, and slate
brass, iron, and slate
wood, iron, and slate
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.