Uses of metals depend on their properties.
Which property is necessary for the use given?
use of the metal
property of the metal
car bodies
ductile
cutlery
conducts heat
food containers
resists corrosion
overhead electrical cables
high density
The diagram shows a section of an overhead power cable.
Which statement explains why a particular substance is used?
Aluminium has a low density and is a good conductor of electricity.
Ceramic is a good conductor of electricity.
Steel can rust in damp air.
Steel is more dense than aluminium.
Which statements about the uses of metals are correct?
1 Iron is used to make aircraft because iron has a low density.
2 Copper is used to make electric cables because copper is a good conductor of electricity.
3 Aluminium is used to make brass because aluminium is strong and hard.
4 Iron is mixed with additives to make an alloy used in chemical plant.
1 and 2
3 and 4
1 and 3
2 and 4