Ductility

1. See whether the object becomes a wire. 2. If yes, write ductility. 3. If the object becomes a sheet, do not choose ductility. 4. Add a suitable metal example if needed.

A sketch of a metal rod passing through smaller holes and becoming a wire helps fix the idea.

Malleability is the common wrong answer because students remember sheet and wire properties together but mix their meanings.

Ductility is the property of a metal by which it can be drawn into wires without breaking.

Ductility is the property of a metal by which it can be drawn into wires without breaking. Rule: metals that can be drawn into wires are ductile; this is a physical property. Copper wire used in house wiring is made because copper is ductile.

Ductility is useful because many metals can stretch under controlled pulling and form long thin wires. Copper and aluminium are common examples used in electrical wiring. This property is different from malleability, which is about making sheets. Rule: metals that can be drawn into wires are ductile; this is a physical property. Copper is pulled through dies to make thin electrical wire. Since it becomes a long wire instead of a sheet, the metal is ductile. The exam may ask for the property of metals used in making wires or may ask to distinguish ductility from malleability. Malleability is the common wrong answer because students remember sheet and wire properties together but mix their meanings.