Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 227 - 233 of 285

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Question number: 227

Physics
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Question

MCQ▾

If a ball is thrown upward with a speed from the top of a building and It reaches the ground with velocity , then the height of the building is,

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 228

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Question

MCQ▾

If same force acted on two bodies of masses and , they accelerated and , respectively. Then the ratio

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 229

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Question

MCQ▾

A car is moving with uniform speed. If the external force applied on car is zero, then the car:

Choices

Choice (4)Response

a.

Must be accelerate

b.

Keep on moving with uniform speed as before

c.

Must stop

d.

None of the above

Question number: 230

Physics
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Question

MCQ▾

A gun is away from a man. If he observed the smoke from a gun before he hears the sound of shooting by same gun, then speed of the sound is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 231

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Question

MCQ▾

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

Loading Image

Question number: 232 (1 of 3 Based on Passage) Show Passage

Physics
Edit

Question

MCQ▾

The speed of the train during first is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 233 (2 of 3 Based on Passage) Show Passage

Physics
Edit

Question

MCQ▾

After , the speed of train:

Choices

Choice (4)Response

a.

Remains same

b.

Increases

c.

Becomes zero

d.

Decrease