What is an alloy?

• A pure metal

• A mixture of two or more elements, at least one of which is a metal

• A non-metallic compound

• A type of fossil fuel

What is the primary use of aluminium in manufacturing?

• Building construction

• Creating sports cars and aeroplane shells

• Producing kitchen utensils

• Making jewellery

What is the main component of stainless steel?

• Gold

• Lead

• Iron

• Copper

What is the role of chromium in stainless steel?

• To make it heavier

• To prevent corrosion

• To make it more flexible

• To give it a gold color

What is the definition of 'ore'?

• A type of fossil fuel

• A finished metal product

• A rock containing enough quantities of a mineral for extraction

• A type of metal

Why is recycling metal important?

• Metals are renewable resources

• Metal ores are non-renewable and finite

• Recycling is not important for metals

• Recycling increases the weight of metals

What is a characteristic of lead?

• It is lightweight

• It is soft and dense

• It is shiny and reflective

• It is transparent

What is the cost calculation for a 1 m length of 20 mm² aluminium bar weighing 1 kg if aluminium costs £1,450 per tonne?

• £1.45

• £14.50

• £0.145

• £145.00

What is the weight of a 1 m length of 20 mm² section aluminium bar?

• 1.04 kg

• 3.00 kg

• 2.60 kg

• 0.52 kg

What is the aesthetic quality of metals?

• They can be polished to a mirror-like finish

• They are always dull

• They are always rough

• They cannot be machined