Metals

Question 1

What are the 2 types of metals?

Answer 1

Ferrous or Non-ferrous

Question 2

what are ferrous metals?

Answer 2

They contain iron e,g steel

Question 3

What are non ferrous metals?

Answer 3

Don’t contain iron e.g aluminium/ gold

Question 4

What is a pure metal?

Answer 4

Element eg copper, gold

Question 5

What is an alloy metal?

Answer 5

Mixture of 2+ elements eg (carbon) to make another metal

Question 6

What are the 5 most used metals?

Answer 6

Iron, aluminium, copper, zinc,manganese

Question 7

What are the properties of metals?

Answer 7

Hard/strong
Solids at room temp (except mercury)
Shiny lustre when polished
Good conductors of heat
Good conductors of electricity
Dense
Malleable + ductile

Question 8

What are the properties and uses of copper?

Answer 8

Good conductor of electricity, ductile
USED FOR ELECTRICAL CABLES

Question 9

What are the properties and uses of gold + silver?

Answer 9

Malleable + ductile + unreactive
USED FOR JEWELLERY THAT DOESN’T TARNISH

Question 10

What are the properties and uses of iron + steel?

Answer 10

Hard + strong. Disadvantage is iron tends to rust whereas steel doesn’t.
USED TO CONSTRUCT BUILDINGS + BRIDGES

Question 11

What are the properties and uses of aluminium?

Answer 11

Good conductor of heat + electricity, very light ( low density) , malleable. Not easily corroded when exposed to air/water. Forms strong alloys.
USES- SAUCEPANS + THINFOIL

Question 12

what is solder?

Answer 12

Mixture of tin + lead. Lower melting point than pure metals.
USED FOR CONNECTING ELECTRICAL CIRCUITS