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Online Tests
ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers
Question # 1
An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
Choose an answer
100 m/sec
140 m/sec
1960 m/sec
196 m/sec
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Question # 2
In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is
Choose an answer
8
4
6
7
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Question # 3
Which quantity has the same dimension as that of impulse?
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KE
Power
Momentum
Work
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Question # 4
The vertical and horizontal range will be equal id angle of projection is
Choose an answer
76
°
45
°
60
°
120
°
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Question # 5
If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have
Choose an answer
different values
same values
zero valves
constant valves
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Question # 6
During the upward motion of the projectile, the vertical component of velocity:
Choose an answer
Decreases
Increases
Remains constant
None of these
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Question # 7
One KWh is equal to:
Choose an answer
3.6 x 10
2
J
3.6 KJ
3,6 x 10
1
KJ
3,6 MJ
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Question # 8
A body whose momentum is constant must have constant
Choose an answer
Acceleration
Velocity
Force
None of these
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Question # 9
The projectile motion is composed of
Choose an answer
horizontal motion only
vertical motion only
horizontal and vertical motion
none of them
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Question # 10
A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
Choose an answer
1.46 m sec
-1
2.44 m sec
-1
3.42 m sec
-1
4.43 m sec
-1
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Question # 11
Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60
° is
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22 m
6 m
33 m
7.8 m
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Question # 12
The mass of the object is a quantities measure of its
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speed
velocity
acceleration
inertia
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Question # 13
Essential characteristic of equilibrium is
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Momentum equal to zero
Acceleration equal to zero
Kinetic energy equal to zero
Velocity equal to zero
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Question # 14
Velocity is a
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scalar quantity
vector quantity
constant quantity
none of them
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Question # 15
The entity which measures the quantity of motion in a body is called
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force
energy
momentum
power
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Question # 16
The three equation of motions are useful only for
Choose an answer
linear motion with increasing acceleration
line motion with uniform acceleration
linear motion with zero acceleration
linear motion with varying acceleration
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