NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1273 - 1279 of 2000

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Question number: 1273

» Physics » Work, Energy & Power

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Question

When a ball reaches the ground, its velocity is , from a height . What is the value of ?

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Choice (4) Response

a.

b.

c.

d.

Question number: 1274

» Chemistry » Atoms & Molecules

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Question

The number of moles present in 5 grams of is:

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Choice (4) Response

a.

b.

c.

d.

Question number: 1275

» Chemistry » Atoms & Molecules

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Question

What is the weight of 16 gram atoms of sulphur?

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Choice (4) Response

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b.

c.

400g

d.

Question number: 1276

» Physics » Work, Energy & Power

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Question

The kinetic energy in terms of the momentum is given as:

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Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 1277

» Physics » Motion

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Question

If a freely falling body travels a distance in the last second, equal to the distance travelled by in the first 2 seconds, the approximate time of its travel is:

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Choice (4) Response

a.

b.

c.

d.

Question number: 1278

» Physics » Gravitation & Pressure

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Question

The weight of an object of mass is:

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Choice (4) Response

a.

b.

c.

d.

Question number: 1279

» 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:

Choices

Choice (4) Response

a.

b.

c.

d.

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