Alloys

Question 0

Describe properties of steel

Answer 0

Alloy of iron and carbon
Stronger
Less likely to rust
Used for bridges, engine parts, cutlery, ships, saucepans etc

Question 1

What is an alloy?

Answer 1

Mixture of 2 or more materials (like brass or bronze)
Mixture of metal and non-metal (steel)
Have properties different from raw metal / materials - new properties more useful

Question 2

Describe brass and it’s properties

Answer 2

Brass is alloy of copper and zinc
Harder
Used for musical instruments, screws, doorknobs etc

Question 3

Describe bronze and it’s properties

Answer 3

Bronze is alloy of copper and tin
Harder, stronger, resistant to corrosion
Used for springs, bells, sculpture

Question 4

Describe solder and it’s properties

Answer 4

Alloy of lead and tin
Gradually solidifies as it cools
Used to solder things!

Question 5

What is amalgam?

Answer 5

Alloy containing mercury

Used for filling teeth - now use white resin instead!

Question 6

What is a smart alloy?

Answer 6

National - alloys with shape memory
Return to original shape when bent
Used for glasses