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Online Tests
Physics ECAT Pre Engineering Chapter 5 Circular Motion Online Test MCQs With Answers
Question # 1
Moment of linear momentum is called.
Choose an answer
Moment arm
Moment of inertia
Inertia
Angular momentum
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Question # 2
Einstein's theory about gravity if better than Newton's because it gave explanation of:
Choose an answer
Inverse square law
Bending of light
Both A and B
None of above
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Question # 3
In rotational motion, analogue of force F us called:
Choose an answer
Couple
Torque
Mass
Moment of intertia
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Question # 4
Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.
Choose an answer
Greater than
smaller than
Equal to
None of these
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Question # 5
The number of "Earth stations" which transmit signals to satellites and receive signals from them are:
Choose an answer
3
24
126
200
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Question # 6
If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will
Choose an answer
Increase
Decrease
Remain constant
None of these
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Question # 7
The number of countries who manage the largest satellite system is:
Choose an answer
3
24
126
200
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Question # 8
Centripetal acceleration is also called ________ acceleration
Choose an answer
Tangential
Radial
Angular
None of these
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Question # 9
The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 9.8 m sec
-2
comes out to be
Choose an answer
980 N
580 N
1380 N
Zero
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Question # 10
A disc rolls down a hill and its speed at bottom is found to be 11.4 m/sec. Height of the hill is then nearly:
Choose an answer
10 m
12 m
13 m
15 m
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Question # 11
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 # 12
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 # 13
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 # 14
Angular momentum is a:
Choose an answer
vector quantity
Imaginary quantity
Complex Quantity
Scalar Quantity
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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
When angular acceleration is positive, the body rotates:
Choose an answer
Slower
Slowest
Faster
None of these
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