(a) What is meant by saying that the metals are malleable and ductile? Explain with examples.
(b) Name two metals which are both malleable and ductile.
(c) Which property of iron metal is utilised in producing iron sheets required fro making buckets?
(d) Which property of copper metal is utilised in making thin wires?
Answers
Malleable and Ductile property of material.
Explanation:
a)
Malleable Metals :- Material which can be converted into sheet by compression. Example : Copper, aluminium.
Ductile Metals :- Material which can be converted into wire by tensile force. Example : Copper, aluminium.
b) Example of material which have both property of ductile and malleable are copper, aluminium, silver and gold.
c) For converting iron metal to make buckets, we need two property of iron metal which are malleable and ductile.
First for converting metal block into sheet, there are need of malleable property of metal.
Second for converting sheet into bucket shape is possible by drawing into die in shape of bucket. Here ductile property is need for iron to drawn into die.
d) Ductile property is need for copper to change into wire.
Copper is Ductile to Make Thin Wires
Explanation:
(a) Metals are malleable - can be hammered to form thin sheets. For example, gold & silver whereas which are ductile - can be stretched to form thin wires. Example, copper & aluminium.
(b) Gold and copper are both malleable as well as ductile.
(c) The property of Iron which makes it be produced into sheets is its Malleability
(d) The Property that makes Copper be used in thin wire making is Ductility.