Pure gold has a density of 19 300 kg/m319\,300\ \text{kg/m}^{3}19300 kg/m3.
A gold bar has a volume of 0.00050 m3.
Calculate the mass of the gold bar.
A jeweller tests a crown that is said to be made of pure gold.
The mass of the crown is 1.93 kg.
The jeweller lowers the crown into a displacement can. The volume of water collected is 125 cm3.
Give 125 cm3 in m3\text{m}^{3}m3.
Use 1 m3=1 000 000 cm31\ \text{m}^{3} = 1\,000\,000\ \text{cm}^{3}1 m3=1000000 cm3.
Deduce whether the crown is made of pure gold.
You must show your working.
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.