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Online Tests
ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers
Question # 1
Angular momentum
Choose an answer
Scalar
Axial vector
Polar vector
At 45
° angle
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Question # 2
Acceleration of a body at any particular instant during its motion is known as
Choose an answer
average acceleration
uniform acceleration
instantaneous acceleration
all of them
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Question # 3
Tick the conservation force:
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Tension in a string
Air resistance string
Elastic spring force
Frictional force
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Question # 4
A body moving with uniform velocity has
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positive acceleration
negative acceleration
infinite acceleration
zero acceleration
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Question # 5
A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:
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10 m/sec
2
20 m/sec
2
30 m/sec
2
Zero
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Question # 6
The product of force and time is called
Choose an answer
acceleration
linear momentum
angular momentum
impulse
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Question # 7
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 # 8
The decrease in velocity per unit time is called:
Choose an answer
Variable Acceleration
Average Acceleration
Retardation
None of these
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Question # 9
Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s
2
Choose an answer
0.064 m
640 cm
64 cm
64 m
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Question # 10
Ethanol (alcohol) is a type of:
Choose an answer
Electric fuel
Bio fuel
Nuclear fuel
None of these
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Question # 11
A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be
Choose an answer
40 km/h
48 km/h
50 km/h
60 km/h
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Question # 12
The velocity of a body at any instant of its motion is known as
Choose an answer
average velocity
instantaneous velocity
uniform velocity
none of them
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Question # 13
A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is
Choose an answer
2100 m/s
2
1400 m/s
2
700 m/s
2
400 m/s
2
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Question # 14
Laws of motion are not valid in a system which is
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inertial
non-interial
at rest
moving with uniform velocity
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Question # 15
The artillery shells travel along parabolic paths under the influence of
Choose an answer
magnetic field
electric field
electromagnetic field
gravitational field
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Question # 16
Inertia mass and gravitational mass are
Choose an answer
opposite
identical
identical when there is no friction
all of them
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