Y8 Ceramics and other materials

What are polymers made up of?

• Atoms

• Monomers

• Ions

• Crystals

Which of the following is a synthetic polymer?

• Cotton

• Rubber

• Polyester

• Keratin

Why are polymers considered lightweight?

• They have a high density

• They have a low density

• They are made of metal

• They are hollow

Which property of ceramics makes them suitable for making building bricks?

• Flexibility

• High electrical conductivity

• Strong in compression

• Lightweight

What is the main component of a composite material called?

• Fibre

• Matrix

• Particle

• Alloy

What is the role of steel rods in reinforced concrete?

• To make it lighter

• To improve its flexibility

• To strengthen it in tension

• To make it waterproof

Which natural composite is made of cellulose fibres and lignin?

• Rubber

• Wood

• Cotton

• Silk

Why are metals good for making electrical wiring? (2)

• They are brittle

• They have high thermal conductivity

• They are ductile

• They are lightweight

• They have high electrical conductivity

What happens to ceramics when they are hit with a strong force?

• They bend

• They melt

• They snap

• They stretch

Which of the following is NOT a property of ceramics?

• Heat-resistant

• Corrosion-resistant

• Malleable

• Brittle