Linear Momentum ( Law of Conservation of Linear Momentum and its Applications) NEET Questions

Physics - Laws of Motion

Linear Momentum ( Law of Conservation of Linear Momentum and its Applications) MCQ Questions


1.
Linear momentum is defined as the product of:
A.
Mass and velocity
B.
Force and time
C.
Mass and acceleration
D.
Work and time
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ANSWER :
A. Mass and velocity
2.
The SI unit of momentum is:
A.
kg·m/s²
B.
kg·m/s
C.
N·s
D.
Both B & C
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ANSWER :
D. Both B & C
3.
The law of conservation of linear momentum states that:
A.
Momentum is always increasing
B.
Momentum remains constant if no external force acts
C.
Momentum is always zero
D.
Momentum depends on acceleration
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ANSWER :
B. Momentum remains constant if no external force acts
4.
Newton’s Second Law states that force is equal to:
A.
Mass × Velocity
B.
Mass × Acceleration
C.
Momentum × Time
D.
Velocity × Time
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ANSWER :
B. Mass × Acceleration
5.
A force F is acting at a point r. The value of α for which angular momentum about origin is conserved is:

NEET - 2015

A.
Zero
B.
1
C.
-1
D.
2
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ANSWER :
C. -1
6.
The impulse acting on an object is equal to:
A.
Change in velocity
B.
Change in momentum
C.
Change in acceleration
D.
Work done
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ANSWER :
B. Change in momentum