Properties Of Metals

Question 1

What are the basic properties of a metal?

Answer 1

They are strong but can be bent or hammered into different shapes

They’re good conductors of heat and electricity

Question 2

Why do these properties make them useful?

Answer 2

Strength makes them good for car bodies
Heat conductor makes them good for saucepans
Electricity conductor makes them good for electrical wires

Question 3

What are the properties of copper?

Answer 3

A good conductor of electricity (ideal for electrical wires)

It’s hard and strong but can be bent

It doesn’t react with water

Question 4

What are the properties of aluminium?

Answer 4

Corrosion-resistant
Low density
Pure aluminium isn’t that strong but forms hard strong alloys

Question 5

What are the properties of titanium?

Answer 5

Low density metal
Very strong
Corrosion resistant

Question 6

What is a use of copper?

Answer 6

Plumbing because it can be bent to make pipes and it’s below hydrogen in reactivity so doesn’t react with water

Question 7

What is a use of aluminium?

Answer 7

Making aeroplanes because it’s a bit strong and can be bent into shape but it also needs to be light

Question 8

What is a use of titanium?

Answer 8

Replacement hips because it has to be non corrosive, light and not too bendy

Question 9

What is a disadvantage of metals?

Answer 9

Some corrode when exposed to air and water so they need to be protected, if they corrode they lose their strength and hardness

Question 10

What is metal fatigue?

Answer 10

When stresses and strains are repeatedly put on a metal it’s known as metal fatigue and leads to the break down of the metal which can be dangerous