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Online Tests
ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers
Question # 1
When a force is applied on a body, several effects are possible Which of the following effect could not occur?
Choose an answer
the body rotates
the body speeds up
the mass of the body decreases
the body changes its direction
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Question # 2
A body is thrown from a height h with speed u, it hits the ground with speed V
Choose an answer
The value of V is maximum if the body is thrown vertically downward
The value of V is maximum if the body is thrown vertically upwards
The value of V is minimum if the body is thrown horizontally
The value of V does not depend on the direction of which it is thrown
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Question # 3
To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined
Choose an answer
Parallel
Antiparallel
At angle 60
°
Perpendicular to each other
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Question # 4
Work done along a closed path in a gravitational force is:
Choose an answer
maximum
Minimum
Zero
Unity
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Question # 5
An aircraft is moving with a velocity of 300 ms
-1
. If all the forces acting on it are balanced, then
Choose an answer
It still moves with the same velocity
It will be just floating at the same point in space
It will be fall down instantaneously
It will lose its velocity gradually
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Question # 6
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?
Choose an answer
150 m
250 m
350 m
400 m
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Question # 7
An inertial frame of reference is that frame of reference in which
Choose an answer
a
= 0
a
> 0
a
< 0
all of them
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Question # 8
Force is a:
Choose an answer
Scalar quantity
Base quantity
Derived quantity
None of these
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Question # 9
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 # 10
A body moving with uniform velocity has
Choose an answer
positive acceleration
negative acceleration
infinite acceleration
zero acceleration
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Question # 11
If a ball comes back to its starting point after bouncing off the wall several times, then its
Choose an answer
total displacement is zero
average velocity is zero
none of them
both of them
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Question # 12
A railway engine (mass 10
4
kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is
Choose an answer
3,600 N
7,200 N
10,000 N
100,000 N
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Question # 13
A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after
Choose an answer
10 s
20 s
5 s
40 s
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Question # 14
A ball is dropped from a height of 4.2 meters. To what height will take it rise if there is no loss of KE after rebounding?
Choose an answer
4.2 m
8.4 m
12.6 m
none of these
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Question # 15
For maximum linear distance of travel, a projectile must be fired at an angle of
Choose an answer
0
°
45
°
90
°
60
°
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Question # 16
In the expression F x t, the force F is
Choose an answer
total force
instantaneous force
average force
all of them
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