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Online Tests
ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers
Question # 1
The horizontal component of a projectile moving with initial velocity of 500 ms
-1
at an angle 60
° to x-axis is
Choose an answer
500 ms
-1
1000 ms
-1
250 ms
-1
Zero
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Question # 2
A train is moving with a velocity of 25 m/s and a car is moving behind it by a velocity of 8 m/s in same direction. The relative velocity of train with respect to car is
Choose an answer
17 m/s
33 m/s
17.5 m/s
none
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Question # 3
The product of force and time is called
Choose an answer
acceleration
linear momentum
angular momentum
impulse
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Question # 4
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 # 5
If the values of instantaneous and average velocities are equal, the body is said to be moving with
Choose an answer
uniform acceleration
uniform speed
variable velocity
uniform velocity
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Question # 6
A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh
-1
. its acceleration will be
Choose an answer
7.71 m s
-2
0.5m s
-2
0.15m s
-2
0.092m s
-2
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Question # 7
A body of mass 5 kg is acted upon by a total change n momentum will be:
Choose an answer
10 NS
100 NS
140 NS
200 NS
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Question # 8
Dimensions of velocity are
Choose an answer
[L]
[T]
[LT
-1
]
[LT
-2
]
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Question # 9
A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:
Choose an answer
First
Second
Third
None of these
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Question # 10
The motion of a body in a straight line is the motion in
Choose an answer
one dimension
two dimension
three dimension
four dimension
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Question # 11
Blomass includes:
Choose an answer
Crop residue
Natural vegetation
Animal dung
All of these
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Question # 12
The magnitude of the force producing an acceleration of 10 m/sec
2
in a body of mass 500 grams is:
Choose an answer
3 N
4 N
5 N
6 N
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Question # 13
If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
Choose an answer
20 m
400 m
1440 m
2880 m
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Question # 14
A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:
Choose an answer
10 NS
100 NS
140 NS
200 NS
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Question # 15
Newton's first law is also called:
Choose an answer
Law of torque
Law of force
Law of inertia
None of these
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Question # 16
If the acceleration of a body is not uniform, then velocity-time graph will be:
Choose an answer
Curve
Straight line
Sphere
All of these
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