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Online Tests
Physics ECAT Pre Engineering Chapter 5 Circular Motion Online Test MCQs With Answers
Question # 1
One radian is equal to:
Choose an answer
30.3°
45.3°
50.3°
57.3°
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Question # 2
The number of countries who manage the largest satellite system is:
Choose an answer
3
24
126
200
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Question # 3
A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is
Choose an answer
0.05 m
0.08 cm
0.8 m
0.008 m
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Question # 4
Direction of motion ______ in circular motion:
Choose an answer
Changes off and on
Changes continuously
Does not change
None of them
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Question # 5
Direction of motion _______ in circular motion
Choose an answer
Changes off and on
Changes continuously
Does not change
None of them
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Question # 6
Angular velocity is a:
Choose an answer
Scalar quantity
Vector quantity
Complex quantity
None of these
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Question # 7
Direction of motion_______ in circular of motion:
Choose an answer
Changes off and on
Changes continuously
Does not change
None of them
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Question # 8
Radian is defined as the angle subtended at the center of a circle by an arc of:
Choose an answer
Length equal to its diameter
Length equal to its radius
Any length
None of these
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Question # 9
One radian is equal to:
Choose an answer
30.3
°
45.3
°
50.3
°
57.3
°
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Next
Question # 10
A point on the rim of a wheel moves 0.2 m where the wheel turns through an angle is 14.3 degrees. The radius of the wheel is:
Choose an answer
0.05 m
0.08 m
0.8 m
0.008 m
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Question # 11
The angular speed of a particle moving along a circular path is 5 Pie rad sec
-1
, Its period of motion is:
Choose an answer
2.5 sec
0.06 sec
15.7 sec
0.4 sec
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Question # 12
When a body moves with a constant speed in a circle:
Choose an answer
No work is done on it
No acceleration is produced in the body
Velocity remains constant
None of these
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Question # 13
Moment of inertia depends upon:
Choose an answer
Mass
Selection of axis of rotation
Both of them
None of these
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Question # 14
When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:
Choose an answer
Zero
Its average velocity
Its angular displacement
None of these
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Question # 15
When angular acceleration is positive, the body rotates:
Choose an answer
Slower
Slowest
Faster
None of these
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Question # 16
INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:
Choose an answer
KHz
MHz
GHz
BHz
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Question # 17
A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:
Choose an answer
38 m/sec
3.8 m/sec
0.6 m/sec
None of these
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Question # 18
When body moves along a circular path with constant speed, it has an acceleration, which is always directed;
Choose an answer
Along the tangent
Towards the centre
Away from the centre
None of them
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Question # 19
The useful unit of the angular displacement in SI unit is:
Choose an answer
Degree
Revolution
Radian
Metre
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