NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1544 - 1550 of 2000

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Question number: 1544

» Physics » Work, Energy & Power

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MCQ▾

Question

If momentum of a particle becomes times, then kinetic energy of the particle increases by factor:

Choices

Choice (4) Response

a.

12

b.

6

c.

3

d.

9

Passage

A train is moving between A and B. The distance – time graph of journey of train is shown as below.

Distance – time graph of a scooter

Distance – Time Graph of a Scooter

In figure distance – time graph of a scooter is shown.

Question number: 1545 (1 of 3 Based on Passage) Show Passage

» Physics » Motion

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MCQ▾

Question

The speed of the train during first is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1546 (2 of 3 Based on Passage) Show Passage

» Physics » Motion

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MCQ▾

Question

The distance travelled by the train in end of 15 min is:

Choices

Choice (4) Response

a.

b.

c.

d.

Cannot determined

Question number: 1547 (3 of 3 Based on Passage) Show Passage

» Physics » Motion

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MCQ▾

Question

After , the speed of train:

Choices

Choice (4) Response

a.

Remains same

b.

Increases

c.

Becomes zero

d.

Decrease

Question number: 1548

» Physics » Gravitation & Pressure

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MCQ▾

Question

Two objects are placed apart, then the gravitational force between them is . After some time they are placed apart, then the gravitational force between them is . Find the ratio of these gravitational forces .

Choices

Choice (4) Response

a.

9

b.

c.

d.

3

Question number: 1549

» Physics » Sound

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MCQ▾

Question

A speed of a sound is and its wavelength is . Then sound is:

Choices

Choice (4) Response

a.

Ultrasonic

b.

Infrasonic

c.

Audible

d.

None of the above

Question number: 1550

» Physics » Force & Laws of Motion

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MCQ▾

Question

If two forces of and act on a body in opposite direction in a straight line as shown in figure, then the resultant force is:

Two forces applied on a body

Two Forces Applied on a Body

In figure two forces applied on a body is shown.

Choices

Choice (4) Response

a.

in the direction from to

b.

in the direction from to

c.

in the direction from to

d.

in the direction from to

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