Properties and uses of metals (Grade 10)

Metals can be easily shaped into wires. This property of metals is called

• malleability

• conductivity

• ductility

• productivity

Which of the following statement is false?

• Metals are good conductor of heat and electricity

• Non-metals are non-sonorous.

• Non-metals are malleable

• Metals are lustrous

Easily breaks into pieces when it falls.

• malleable

• lustre

• ductile

• brittle

Why is iron a useful metal?

• It is useful because it is hard and strong.

• It is useful because it rusts easily.

• It is useful because it is very light.

• It is useful because it is very brittle.

What metal is used in electrical wires?

• copper

• silver

• gold

• iron

Which metal is used in the aircraft industry as it is very light?

• aluminium

• copper

• iron

• brass