NCERT Class 9 Science-Gravitation[Density] [NCERT Based General Studies (GS)]: Questions 1 - 3 of 3

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Question 1

Question MCQ▾

Archimedes Principle applications are:

Choices

Choice (4)Response

a.

To determine the relative density of solids and liquids

b.

In designing ships and submarines

c.

Working of lactometer, hydrometers etc.

d.

All a., b. and c. are correct

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Question 2

Question MCQ▾

Relative density of a substance is the:

Choices

Choice (4)Response

a.

Ratio of the density of the substance to the density of water under similar conditions

b.

Mass of a unit volume of the substance

c.

Ratio of the mass of a given volume of that substance to the mass of an equal volume of water

d.

Both a. and c. are correct

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Question 3

Question MCQ▾

According to Archimedes Principle whenever an object immersed wholly or partially in a fluid:

Choices

Choice (4)Response

a.

It experiences an downward force of buoyancy due to that fluid and magnitude of this force is equal to the weight of the fluid displaced by it.

b.

It experience an upward force of buoyancy due to that fluid and magnitude of this force is the weight of the fluid displaced by it

c.

It experiences an upward force of buoyancy due to that fluid and magnitude of this force is equal to the weight of the fluid displaced by it.

d.

Question does not provide sufficient data or is vague

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