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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
A rotating wheel accelerates up to the value of 0.75 rev/sec2after 2 seconds of its start. Its angular velocity becomes:
Question # 2
Radian is defined as the angle subtended at the center of a circle by an arc of:
Question # 3
Angular momentum is a:
Question # 4
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:
Question # 5
A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:
Question # 6
A body can have constant velocity when it follows:
Question # 7
The useful unit of the angular displacement in SI unit is:
Question # 8
One radian is:
Question # 9
Direction of motion ______ in circular motion:
Question # 10
When a body moves with a constant speed in a circle:
Question # 11
A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:
Question # 12
A rotating body tends to be slower, when its angular acceleration is:
Question # 13
Which of the following pairs does not have identical dimensions?
Question # 14
The rear wheels of an automobile are rotating with an angular velocity of 14 rev/sec which is reduced to 38 rad/sec in 5 second when brakes are applied. Its angular acceleration is:
Question # 15
When angular acceleration is positive, the body rotates:
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 -
K Kashaf Naqvi 12 - Mar - 2026 01 Min 44 Sec 52/60 -
A Abdullah Zubair 18 - Dec - 2024 06 Min 29 Sec 50/60 -
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E Eraj Abeer 06 - Dec - 2024 16 Min 49 Sec 45/60 -
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R Rashid Bhatti 20 - Nov - 2024 02 Min 54 Sec 40/60 -
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M MUHAMMAD MUSA MUEED 10 - Oct - 2025 17 Min 42 Sec 36/60 -
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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 | 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
|
| 2 | Angular velocity is a: |
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
|
| 3 | The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 9.8 m sec-2comes out to be |
A. 980 N
B. 580 N
C. 1380 N
D. Zero
|
| 4 | A 1000 Kg car travelling with a speed of 90 km/hr turns around a curve of radius 0.1 km. The necessary centripetal force comes out to be: |
A. 8.1 X 107N
B. 625 N
C. 6250 N
D. None of these
|
| 5 | The useful unit of angular replacement in SI unit is: |
A. Degree
B. Revolution
C. Radian
D. Metre
|
| 6 | Conventional the angular Velocity is Directed at 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 above
|
| 7 | The useful unit of the angular displacement in SI unit is: |
A. Degree
B. Revolution
C. Radian
D. Metre
|
| 8 | Direction of motion _______ in circular motion |
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
|
| 9 | Centripetal force performs: |
A. Maximum work
B. Negative work
C. Positive work
D. None of these
|
| 10 | When angular acceleration is positive, the body rotates: |
A. Slower
B. Slowest
C. Faster
D. None of these
|
Test Questions
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Ahmed Qureshi
14 Feb 2018wt