A student places 20 identical small metal objects into a measuring cylinder. The reading increases from 50 cm3 to 75 cm3. Each object has a mass of 10 g. What is the density of the metal?
8.0 g/cm38.0\ \mathrm{g/cm^3}8.0 g/cm3
0.40 g/cm30.40\ \mathrm{g/cm^3}0.40 g/cm3
2.7 g/cm32.7\ \mathrm{g/cm^3}2.7 g/cm3
0.125 g/cm30.125\ \mathrm{g/cm^3}0.125 g/cm3
87 exam-style questions on Edexcel GCSE Physics 14.1 Density and states of matter, covering 14.1.1 Kinetic theory and states of matter, 14.1.2 Density, and 14.1.3 Density and changes of state. Each one has a worked solution and a mark scheme showing where the marks go.