Uses Of Metals

Question 1

What properties do iron, copper, and aluminium have in common

Answer 1

Good conductors of heat energy and electricity
They have high melting points
They are malleable and can be hammered into different shapes
They are strong and hard to break

Question 2

What are the uses of copper

Answer 2

Good conductor of heat and electricity
Used in heating systems
Using in electrical components as it has low resistance so can efficiently transfer electricity

Question 3

What are the uses of iron

Answer 3

Malleable so used as gates and railings
Corrodes easily

Question 4

What are the properties of aluminium

Answer 4

Reacts with oxygen in the air to form aluminium oxide which provides a protective layer to the aluminium below, preventing any further reaction from taking place
Light so can be used for bikes and aeroplanes
Doesn’t corrode so can be useful for products that come into contract with water e.g. drink cans

Question 5

What are alloy, why are they harder than pure metals, and what are their uses

Answer 5

When other elements are added to a metal
Different elements have different atoms sizes so the new atoms distort the layers of metal atoms, making it more difficult for them to slide over each other, making them harder to
E.g. steel which is used for bridges, car bodies, and cutlery