A baker uses a spring scale to measure some sugar in a bowl and records the reading. He then replaces the sugar with some flour. The reading on the spring scale, with just the flour, is exactly the same as it was with the sugar.
Which quantity must be the same for both the sugar and the flour?
density
volume
temperature
weight
209 exam-style questions on CIE IGCSE Physics Mass and weight, covering Mass and weight. Each one has a worked solution and a mark scheme showing where the marks go.