Technology. Materials. Revision

MDF is an example of

• a hardwood.

• a manufactured board.

• a softwood.

• a thermoplastic.

Manufactured boards are made by cutting up solid timber wood and sticking it back together again in different ways. Which board is made by sticking together very thin layers of hardwood?

• MDF
• plywood
• chipboard
• hardboard

Which board is made by gluing and pressing together very small pieces of softwood?

• MDF
• plywood
• chipboard
• hardboard

What is this material?

• Blockboard

• Plywood

• M.D.F.

Plywood has layers, called plies or a single ply, that are layered ...

• In opposite directions
• In the same direction
• In varying directions

A veneer is ...

• a thin layer of chipboard
• a thin layer of material, usually wood or plastic
• a thick layer of wood that is glued on
• a thick layer of plastic added to wood

Which of these is a property of metals?

• It's malleable
• It can't conduct electricity
• They are used in food
• It's very brittle

Which object is least likely to contain aluminium?

• a bicycle frame

• a saucepan

• a hammer

• an aeroplane body

An alloy is the mixture of metals with metals only.

• TRUE

• FALSE

What colour does copper turn when it oxidises?

• Green

• Brown

• Bronze

• Blue