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ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers
Question # 1
When a shall explodes a mid-air, the total momentum of its fragments is
Choose an answer
less than the momentum of shell
equal to the momentum of shell
greater than the momentum of shell
none of them
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Question # 2
The shortest distance between two points directed from its initial point to final point is called:
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Velocity
Displacement
Speed
Distance
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Question # 3
A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:
Choose an answer
20 minutes
48 minutes
10 minutes
5 minutes
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Question # 4
A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is
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Moving forward and gaining speed
Moving forward and losing speed
Moving forward with uniform speed
Moving backward with uniform speed
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Question # 5
A body moving with an acceleration of 5 m/sec
2
started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?
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150 m
250 m
350 m
400 m
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Question # 6
When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.
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Becomes half
Becomes zero
Ramains same
Becomes double
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Question # 7
If the objects of different masses move with the same velocity, then it is more difficult to stop the
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lighter of the two
massive of the two
any one of them
both of them
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Question # 8
The SI units of momentum is
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kg m s
-2
kg ms
kg m s
2
N-s
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Question # 9
The horizontal range of projectile, at a certain place, depends upon
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the mass of the projectile
velocity of projection
angle of projection
angle as well as velocity of projection
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Question # 10
The direction of the acceleration is the same as that of
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speed
velocity
both of them
none of them
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Question # 11
A the top of the trajectory of a projectile, the directions of its velocity and acceleration are
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Perpendicular to each other
Parallel to each other
Inclined to each other at an angle of 45
°
Anitparallel to each other
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Question # 12
Biomass includes:
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Crop residue
Natural vegetation
Animal dung
All of these
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Question # 13
One newton is a force that produces an acceleration of 0.5 m/sec
2
in a body of mass:
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2 Kg
3 Kg
4 Kg
8 Kg
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Question # 14
If the velocity time graph is a straight line parallel to time-axis, then it means that:
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The body is moving with uniform velocity
The body is moving with uniform acceleration
The body is at rest
None of above
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Question # 15
Which one of the following is dimensionless.
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Acceleration
Velocity
Density
Angle
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Question # 16
Which of the following statements for an object in equilibrium is not true?
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The object must be at rest
The object can be at rest
The object is moving at constant speed
The acceleration of the object is zero
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