A student wants to determine the density of steel by performing measurements on a sample of 100 small steel ball bearings, each with an estimated diameter of approximately 1.5 mm. To minimize percentage uncertainty, which pair of apparatus is most appropriate to measure the dimensions of a single ball bearing and the total mass of the sample?
Vernier calipers and displacement can
Micrometer screw gauge and digital balance
Measuring cylinder and spring balance
Metre ruler and top-pan balance
29 exam-style questions on OCR GCSE Physics The particle model. Each one has a worked solution and a mark scheme showing where the marks go.