Question 2

The ability of an substance to resist any deformation or the ability to undergo damage when pressure is applied is defined as the hardness or softness of that substance.

(a) A substance which is very hard is used in jewellery. Identify substance.

(b) Which substance is harder: steel pipe or wooden piece?

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Solution

(a) Diamond is a very hard substance used in jewellery.

(b) Wooden pieces are harder.

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Question 2

The ability of an substance to resist any deformation or the ability to undergo damage when pressure is applied is defined as the hardness or softness of that substance.

(a) A substance which is very hard is used in jewellery. Identify substance.

(b) Which substance is harder: steel pipe or wooden piece?

Question 2

The ability of an object to resist any deformation or the ability to undergo damage when pressure is applied is defined as the hardness or softness of that object.

(a) An object which is very hard is used in jewellery. Identify the object.

(b) Which object is harder: steel pipe or wooden piece?

Q. Is a substance which can be compressed soft or hard?

When Iron is alloyed with a non-metal, a hard substance called as steel is formed. The substance which is used to make it hard is ___ .

Q. Sugar candies are very hard. In order to make them soft, a substance is added, that also has a slightly sweet taste. Identify the substance.

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(a) Diamond is a very hard substance used in jewellery. (b) Wooden pieces are harder.

(a) Diamond is a very hard substance used in jewellery.

(b) Wooden pieces are harder.