Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 99 - 105 of 285

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Question number: 99

Physics
Edit

Question

MCQ▾

If a car moves with uniform velocity, then its acceleration is –

Choices

Choice (4)Response

a.

0

b.

c.

d.

Question number: 100

Edit

Question

MCQ▾

Because of impulse, the change in momentum of an object is . If the time of impulse is , the force produced in it is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 101

Physics
Edit

Question

MCQ▾

A block is left free on a frictionless inclined plane as shown in the figure. It takes to reach the bottom of the plank. What time would it take to slide from point A to point B?

A block slide on inclined plane

A Block Slide on Inclined Plane

Loading Image

Choices

Choice (4)Response

a.

b.

c.

d.

Passage

The following table shows the data recorded for a bike rider. Study it carefully and answer the questions that are below the table.

Data recorded for bike rider

Question number: 102 (1 of 3 Based on Passage) Show Passage

Edit

Question

MCQ▾

The speed of bike is:

Choices

Choice (4)Response

a.

Uniform

b.

Can be uniform and non uniform

c.

Cannot be determined

d.

Non uniform

Question number: 103 (2 of 3 Based on Passage) Show Passage

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Question

MCQ▾

Which of the following correctly represented the Speed – Time graph for given data:

Choices

Choice (4)Response

a.

Graph of Speed – Time : Choice – A
Loading Image

b.

Graph of Speed – Time : Choice – B
Loading Image

c.

Graph of Speed – Time : Choice – C
Loading Image

d.

Graph of Speed – Time : Choice – D
Loading Image

Question number: 104 (3 of 3 Based on Passage) Show Passage

Edit

Question

MCQ▾

The bike rider moves with:

Choices

Choice (4)Response

a.

Variable acceleration

b.

Uniform speed

c.

Non-uniform speed

d.

Constant acceleration

Question number: 105

Edit

Question

MCQ▾

An engine of mass pulls a train of 4 wagons, each of mass , along a horizontal track. The force exerted by the engine is and force of friction offered by track is . The net acceleration of the wagons is:

Choices

Choice (4)Response

a.

b.

c.

d.