An automatic defrost system is tested using a block of ice on a removable tray. The ice melts completely, and no meltwater leaves the tray. Before melting, the ice has a mass of 0.184 kg. The measured volumes are shown in the table.
| Stage | Volume of contents (m3\text{m}^3m3) |
|---|---|
| Before melting | 2.00 × 10-4 |
| After melting | 1.84 × 10-4 |
Explain what happens to the mass of the contents of the tray as the ice melts.
Calculate the density of the ice before melting and the water after melting. Compare your answers.
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.