8.4 COMPOSITE MATERIALS

Which of the following is a composite material?

• ALLOY

• OPTICAL FIBRE

• GLASS

• CERAMICS

Which composite material is used to build the bridge?

• Reinforced concrete

• Photochromic glass

• Superconductor

• Optical fibre

Which of the following substances can be added to make it become a composite material that will change colour when the intensity of light changes?

• Lead (II) chloride

• Silver chloride

• Sodium chloride

• Aluminium chloride

Photochromic glass and superconductors are composite materials. State the 2 components in photochromic glass?

What are the advantages of using composite materials?