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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
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Question # 1
A body moving along the circumference of a circle of radius R completes one revolution. The radius of a covered path to the angle subtended at the centre is:
Question # 2
Radian is defined as the angle subtended at the center of a circle by an arc of:
Question # 3
Direction of motion ______ in circular motion:
Question # 4
An axis of rotation
Question # 5
The instantaneous acceleration of a body moving with constant speed in a circle:
Question # 6
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 # 7
When angular acceleration is positive, the body rotates:
Question # 8
Conventional the angular Velocity is Directed at an angle of:
Question # 9
Direction of motion _________ in circular motion
Question # 10
Satellites are held in orbits around Earth by its:
Question # 11
A rotating body tends to be slower, when its angular acceleration is:
Question # 12
Centripetal acceleration is also called ________ acceleration
Question # 13
A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:
Question # 14
If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will
Question # 15
The number of "Earth stations" which transmit signals to satellites and receive signals from them are:
Top Scorers Of Physics ECAT Pre Engineering Chapter 5 Circular Motion MCQ`s Test
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D Deuspeu 24 - Sep - 2024 00 Min 49 Sec 60/60 -
M M Umer Arain 06 - Nov - 2024 00 Min 15 Sec 55/60 -
M Muhammad Rameez 15 - Sep - 2024 02 Min 50 Sec 55/60 -
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A Abdullah Zubair 18 - Dec - 2024 06 Min 29 Sec 50/60 -
A Aarij 09 - Dec - 2024 01 Min 36 Sec 45/60 -
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E Eraj Abeer 06 - Dec - 2024 16 Min 49 Sec 45/60 -
M Malaika Abeer 30 - Mar - 2026 05 Min 40 Sec 44/60 -
R Rashid Bhatti 20 - Nov - 2024 02 Min 54 Sec 40/60 -
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Z zeeshan khan 27 - Oct - 2024 12 Min 38 Sec 35/60
ECAT Physics Chapter 5 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | A rotating body tends to be slower, when its angular acceleration is: |
A. Positive
B. Negative
C. Zero
D. Infinity
|
| 3 | One radian is equal to: |
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
|
| 4 | Which of the following pairs does not have identical dimensions? |
A. Torque and energy
B. Energy and work
C. Momentum and impulse
D. Mass and moment of inertia
|
| 5 | The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is: |
A. 2.5 sec
B. 0.06 sec
C. 15.7 sec
D. 0.4 sec
|
| 6 | In case of planets, the necessary acceleration is provided by: |
A. Gravitational force
B. Coulomb force
C. Frictional force
D. None of these
|
| 7 | Conventionally the angular velocity is directed to an angle of: |
A. 90° to the axis of rotation
B. 30° to the axis of rotation
C. 0° to the axis of rotation
D. None of the above
|
| 8 | The useful unit of angular replacement in SI unit is: |
A. Degree
B. Revolution
C. Radian
D. Metre
|
| 9 | 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
|
| 10 | A stone tied to the end of a 20 cm long string is whirled in a horizontal circle. If centripetal acceleration is 9.8 m/sec2, then its angular velocity is rad/sec is: |
A. 22/7
B. 7
C. 14
D. 21
|
Test Questions
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Ahmed Qureshi
14 Feb 2018wt