Metals

Question 1

What is a ferrous metal?

Answer 1

A metal that contains mostly iron.

Question 2

What is a non-ferrous metal?

Answer 2

Metals that do not contain iron; they are not magnetic and usually more resistant to corrosion than ferrous metals.

Question 3

List the names of common metals.

Answer 3

• Silver
• Stainless steel
• Iron
• Brass
• Copper
• Pewter

Question 4

Describe the properties and potential uses of iron.

Answer 4

• Cast iron is brittle and can snap, so is likely to break/shatter if dropped.

Cast iron might be used to make garden furniture, house numbers or vices.

Question 5

Describe the properties and potential uses of stainless steel?

Answer 5

• Tough, and resistant to rust and stains.
• Does not corrode.
• Used for cutlery, medical instruments, pots and pans.

Question 6

What is an alloy?

Answer 6

A metal is combined with other substances to improve its properties or characteristics.

Question 7

Describe the properties and potential uses of aluminium?

Answer 7

• Ductile, soft, malleable, lightweight and resistant to corrosion.
• Used in aircraft, drinks cans and window frames.

Question 8

Describe the properties and potential uses of copper.

Answer 8

• Ductile, can be beaten into shape as it is soft. It is a good electrical conductor.
• Therefore, often used in electrical wiring, tubing, kettles, pipes and plumbing.

Question 9

Describe the properties and potential uses of brass.

Answer 9

• Conducts electricity, surface tarnishes slowly on contact with air. Resists corrosion. Golden colour.
• Electrical fittings, engineering, ornaments and musical instruments.

Question 10

Describe the properties and potential uses of Pewter.

Answer 10

• Pewter is soft, malleable alloy that has a low melting point. As a result, suitable for casting.
• Used for making tankards and decorative pieces.

Question 11

Name two methods of finishing a metal.

Answer 11

• Enameling

- Dip coating