NCERT Class 9 Science-Force and Laws of Motion[Momentum] [NCERT Based General Studies (GS)]: Questions 1 - 5 of 5

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Question 1

Question MCQ▾

Recoil velocity of a gun is:

Choices

Choice (4)Response

a.

F = m a

b.

P = m X V

c.

d.

None of the above

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Question 2

Question MCQ▾

It is difficult for a fireman to hold a hose, which ejects large amounts of water at a high velocity why?

Choices

Choice (4)Response

a.

Large momentum in the direction of water flow

b.

Because large amount of water is ejected at a high velocity from a hose of a fireman

c.

Both a. and b. are correct

d.

None of the above

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Question 3

Question MCQ▾

Motion of a jet aeroplane and propulsion of a rocket based on the law of:

Choices

Choice (4)Response

a.

Conservation of momentum

b.

Inertia of rest

c.

Inertia of direction

d.

Question does not provide sufficient data or is vague

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Question 4

Question MCQ▾

Law of conservation of momentum is:

Choices

Choice (4)Response

a.

To every action, there is an equal and opposite reaction

b.

For an isolated system, the total momentum of the system remains conserved

c.

Under the effect of balance forces, the shape and size of an object at rest may change

d.

All of the above

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Question 5

Question MCQ▾

Momentum is defined as:

Choices

Choice (4)Response

a.

Momentum of an object is the product of its mass and velocity

b.

Product of its mass and velocity

c.

Inherent property of an object to oppose any change in its state of rest by itself

d.

None of the above

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