A student wants to find the volume of a small, irregularly shaped stone.
Which method should the student use?
Measure its length, width and height with a ruler and multiply them
Find its mass on a balance and divide by the density of water
Wrap string around it, measure the string and cube that length
Lower it into water in a measuring cylinder and record the rise
44 exam-style questions on OCR GCSE Physics 1.1 The particle model, covering 1.1.1 Development of the atomic model, 1.1.2 Structure of the atom, 1.1.3 The size of atoms and small molecules, 1.1.4 Density, 1.1.5 Density and the states of matter, and 1.1.6 Density, mass and volume. Each one has a worked solution and a mark scheme showing where the marks go.