Metals

Question 1

Explain how metals are made

Answer 1

metal is made by extracting metal ores from rocks in the Earth’s crust by mining

Question 2

Explain how many categories of metals there are

Answer 2

two

Question 3

Explain what a ferrous metal is

Answer 3

metals that contain iron

Question 4

Explain what a non-ferrous metal is

Answer 4

metals that do not contain iron

Question 5

Explain why you need to treat a ferrous metal with a suitable surface coating such as paint, oil or wax

Answer 5

otherwise they will corrode quickly because of their iron content

Question 6

True or false – the majority of ferrous metals are also magnetic so will be attracted to a magnetic force

Answer 6

True

Question 7

True or false - non-ferrous metals are much more resistant to corrosion than ferrous metals

Answer 7

True

Question 8

Which metals are generally more expensive? Ferrous or non-ferrous?

Answer 8

non - ferrous

Question 9

In general, are ferrous metals or non-ferrous metals better electrical conductors?

Answer 9

non - ferrous

Question 10

Name two ferrous metals

Answer 10

carbon steel and stainless steel

Question 11

Name two non-ferrous metals

Answer 11

aluminium, copper and tin

Question 12

Explain what an alloy is

Answer 12

a metal that is mixed with other substances to make it stronger, harder or lighter

Question 13

Name two alloys

Answer 13

brass

bronze

Question 14

Explain what the term ‘stock profile’ means

Answer 14

The standard size the metal is processed to

Question 15

Name two types of ‘stock profile’ metal comes in

Answer 15

• rod
• tube
• bar