A 2 kg block of copper is kept in a school's science laboratory. In another room of the same school building, there is a 2 kg block of granite.
Which of the following physical quantities must these two blocks always have in common?
their volume
their density
their temperature
their 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.