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MCQ's Test For Physics ECAT Pre Engineering Chapter 5 Circular Motion
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 5 Circular Motion
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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 5 Circular Motion
00:00
Question # 1
When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:
Question # 2
The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are
Question # 3
If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will
Question # 4
INTELSAT operates at frequencies 4, 6, 11, 14 having unit of
Question # 5
The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec-2comes out to:
Question # 6
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:
Question # 7
An axis of rotation
Question # 8
One radian is equal to:
Question # 9
The instantaneous acceleration of a body moving with constant speed in a circle:
Question # 10
A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path:
Question # 11
Centripetal acceleration is also called ______ acceleration:
Question # 12
When angular acceleration is positive, the body rotates:
Question # 13
When a body moves with a constant speed in a circle:
Question # 14
Einstein's theory about gravity if better than Newton's because it gave explanation of:
Question # 15
Satellites are held in orbits around Earth by its:
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ECAT Physics Chapter 5 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | One radian is equal to: |
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
|
| 2 | If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will |
A. Increase
B. Decrease
C. Remain constant
D. None of these
|
| 3 | A car is turning around a corner at 10 m/sec as it travels along an arc of circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path: |
A. 1 m
B. 5 m
C. 10 m
D. 15 m
|
| 4 | The instantaneous acceleration of a body moving with constant speed in a circle: |
A. Remains constant
B. Is called centripetal acceleration
C. Tangential acceleration
D. None of these
|
| 5 | The useful unit of the angular displacement in SI unit is: |
A. Degree
B. Revolution
C. Radian
D. Metre
|
| 6 | A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be: |
A. 49 rad/sec2
B. 1 rad/sec2
C. 0.16 rev/sec2
D. Both A and C
|
| 7 | In case of planets, the necessary acceleration is provided by: |
A. Gravitational force
B. Coulomb force
C. Frictional force
D. None of these
|
| 8 | A body can have constant velocity when it follows: |
A. A circular path
B. A rectilinear path
C. Trajectory of a projectile
D. None of these
|
| 9 | Moment of inertia depends upon: |
A. Mass
B. Selection of axis of rotation
C. Both of them
D. None of these
|
| 10 | The number of countries who manage the largest satellite system is: |
A. 3
B. 24
C. 126
D. 200
|
Test Questions
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Ahmed Qureshi
14 Feb 2018wt