Some skateboard decks are made from composite materials, while others are made from maple wood.
The table below contains information about a carbon fibre composite and maple wood:
| Property | Carbon fibre composite | Maple wood |
|---|---|---|
| Relative strength | 92 | 41 |
| Relative cost | High | Low |
| Density in kg/m3\text{kg/m}^3kg/m3 | 1600 | 750 |
| Disposal at end of life | Difficult to recycle | Can be burned as fuel |
Carbon fibre composite consists of carbon fibres surrounded by a plastic resin.
What type of material is carbon fibre composite?
Calculate the volume of maple wood in a skateboard deck of mass 1.20 kg1.20\text{ kg}1.20 kg.
Use the table and the equation:
Density=MassVolume \text{Density} = \frac{\text{Mass}}{\text{Volume}} Density=VolumeMass18 exam-style questions on AQA GCSE Chemistry 10.3 Using materials, covering 10.3.1 Corrosion and its prevention, 10.3.2 Alloys as useful materials, and 10.3.3 Ceramics, polymers and composites. Each one has a worked solution and a mark scheme showing where the marks go.