Alloys

Question 1

Are alloys stronger or weaker than pure metals? Why?

Answer 1

Stronger because different metals have different size atoms. different sizes of atoms disrupts the orderly layers of atoms and makes it more difficult for the layers to slide over each other.

Question 2

What does steel contain?

Answer 2

Iron and carbon

Question 3

What is steel used for?

Answer 3

Stabilising railways, buildings and bridges, roads

Question 4

What does solder contain?

Answer 4

Tin and lead

Question 5

What are the uses of solder?

Answer 5

Soldering, sheet metal work, plumbing, electronics

Question 6

What does brass contain?

Answer 6

Copper and zinc

Question 7

What are the uses of brass?

Answer 7

Door handles, gears, electrical bearings, pipes, musical instruments

Question 8

What does amalgam contain?

Answer 8

Mercury, silver, tin and copper

Question 9

What are the uses of amalgam?

Answer 9

Teeth fillings

Question 10

What does magnallium contain?

Answer 10

magnesium and aluminium

Question 11

What are the uses of magnallium?

Answer 11

Wheels, aeroplanes and automobile parts