A rectangular block measures 4.0 cm by 5.0 cm by 2.0 cm and has a mass of 336 g. What is the density of the block in kg/m3\text{kg/m}^3kg/m3?
8.4 kg/m38.4\ \text{kg/m}^38.4 kg/m3
840 kg/m3840\ \text{kg/m}^3840 kg/m3
84 000 kg/m384\,000\ \text{kg/m}^384000 kg/m3
8400 kg/m38400\ \text{kg/m}^38400 kg/m3
40 exam-style questions on AQA GCSE Physics 3.1 Changes of state and the particle model, covering 3.1.1 Density of materials and 3.1.2 Changes of state. Each one has a worked solution and a mark scheme showing where the marks go.