NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1439 - 1443 of 2000

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Question number: 1439

» Physics » Motion

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MCQ▾

Question

Points and are in a vertical line such that . A ball at the top most point is allowed to fall freely. What is the ratio of the times of descent through and ?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1440

» Physics » Motion

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MCQ▾

Question

A car starts from rest with a uniform acceleration. It travels a distance in the first and a distance in the next . Then:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1441

» Biology » Diversity of Living Organisms

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MCQ▾

Question

In which of the following organism internal fertilization takes place

Choices

Choice (4) Response

a.

Earthworm

b.

Mosquito

c.

Frog

d.

Starfish

Question number: 1442

» Physics » Force & Laws of Motion

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MCQ▾

Question

Two bodies are in contact. When whole system is moving, due to friction on constant surfaces both bodies are at rest with respect to each other. Then friction is –

Choices

Choice (4) Response

a.

Sliding friction

b.

Kinetic friction

c.

Static friction

d.

Question does not provide sufficient data or is vague

Question number: 1443

» Physics » Force & Laws of Motion

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MCQ▾

Question

If two different forces applied on a body, because of these the body accelerates and respectively. Then which one is correct?

Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

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