Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 19 - 24 of 285

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Question number: 19

» Physics » Gravitation & Pressure

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Question

The weight of an object of mass is:

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Choice (4)Response

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d.

Question number: 20

» Physics » Sound

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Question

If speed of sound in air is and an echo is heard in after the emission of sound, then the distance of the reflecting surface from the source is:

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Choice (4)Response

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Question number: 21

» Physics » Gravitation & Pressure

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Question

Calculate the height, at where weight of a body becomes of weight, when it is on the surface of earth. The radius of earth is .

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Choice (4)Response

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b.

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r

d.

Question number: 22

» Physics » Gravitation & Pressure

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Question

If an object floats with of its volume inside the water and of its volume inside the liquid, then the relative density of the liquid is:

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3

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2

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d.

Question number: 23

» Physics » Force & Laws of Motion

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Question

A force of is distributed uniformly on one face of a cube of edge . The pressure on this surface is approximately:

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Question number: 24

» Physics » Motion

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MCQ▾

Question

The initial position of a man was with respect to his house at . If he walked on straight line and covered distance and reached on a final position at , then what is the final position of this man with respect to his house.

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Choice (4)Response

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