A student wants to identify an irregular metal pendant found in a workshop.
The student determines the density of the metal pendant to be 8.60±0.25 g/cm38.60 \pm 0.25\text{ g/cm}^38.60±0.25 g/cm3.
What are the maximum and minimum values for the density of the metal?
Table 1 shows the density values of five different metals.
| Metal | Density in g/cm3\text{g/cm}^3g/cm3 |
|---|---|
| Iron | 7.87±0.157.87 \pm 0.157.87±0.15 |
| Brass | 8.53±0.158.53 \pm 0.158.53±0.15 |
| Bronze | 8.80±0.108.80 \pm 0.108.80±0.10 |
| Copper | 8.96±0.088.96 \pm 0.088.96±0.08 |
| Nickel | 8.90±0.038.90 \pm 0.038.90±0.03 |
Which two metals in Table 1 could be the metal of the pendant?
Describe a method using a displacement (Eureka) can that the student could use to determine the volume of this irregular metal pendant.
22 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.