Unit 3 - Materials and their working properties

Which of the following is a unit of board measurement?

• Kilogram

• Micron

• Micrometre

• Grams per square metre

Which type of material is most suitable for drainpipes?

• PVC

• Acrylic

• Wool

• Copper

Which two of the following properties make ink-jet paper suitable for printing?

• Special coating so the ink sits on the surface

• Bleached paper

• Glossy finish

Which two of the following are textiles surface treatments?

• Weaving

• Stain protection

• Waterproofing

• Embroidery

Which of the following is the definition of a "tough" material?

• A material that can absorb more energy before breaking.

• A material which is likely to shatter or crack upon impact.

Which of the following is the definition of a "brittle" material?

• A material that can absorb more energy before breaking.

• A material which is likely to shatter or crack upon impact.

Which of the following are examples of natural fibres?

• Silk

• Acrylic

• Nylon

• Cotton

Which two are examples of synthetic textiles fibres?

• Acrylic

• Wool

• Polyester

• Cotton

Which one of the following materials has a high absorbency?

• Cotton

• Ash

• Copper

• Iron

Select the correct definition of a "ductile" material.

• A metal which is malleable

• A metal which can be drawn out into a thin wire

• A metal which can be retract into it's original shape when heated