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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
Direction of motion_______ in circular of motion:
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
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 # 5
In rotational motion, analogue of force F us called:
Question # 6
When angular acceleration is positive, the body rotates:
Question # 7
The useful unit of the angular displacement in SI unit is:
Question # 8
Radian is defined as the angle subtended at the center of a circle by an arc of:
Question # 9
Which of the following pairs does not have identical dimensions?
Question # 10
INTELSAT operates at frequencies 4, 6, 11, 14 having unit of
Question # 11
The center of mass of a sphere lies at:
Question # 12
Direction of angular momentum is determined by:
Question # 13
A stone is tied to the end of a 20 cm along string is whirled in a horizontal circle.
A stone is tied to the end of a 20 cm along string is whirled in a horizontal circle.if centripetal acceleration is 9.8 m/sec2, then its angular velocity in rad/sec is:
Question # 14
One radian is
Question # 15
Direction of motion _______ in circular motion
Top Scorers Of Physics ECAT Pre Engineering Chapter 5 Circular Motion MCQ`s Test
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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 -
A Abdullah Zubair 18 - Dec - 2024 06 Min 29 Sec 50/60 -
A Aarij 09 - Dec - 2024 01 Min 36 Sec 45/60 -
H Hanan Cheema 31 - Dec - 2024 03 Min 50 Sec 45/60 -
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R Rashid Bhatti 20 - Nov - 2024 02 Min 54 Sec 40/60 -
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H Hp_Probook_4540s Fauji 17 - Nov - 2024 18 Min 21 Sec 35/60 -
S Samia 786 08 - Dec - 2025 04 Min 57 Sec 32/60
ECAT Physics Chapter 5 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The number of countries who manage the largest satellite system is: |
A. 3
B. 24
C. 126
D. 200
|
| 2 | The useful unit of angular replacement in SI unit is: |
A. Degree
B. Revolution
C. Radian
D. Metre
|
| 3 | Angular momentum is a: |
A. vector quantity
B. Imaginary quantity
C. Complex Quantity
D. Scalar Quantity
|
| 4 | Circular motion is an example of motion in: |
A. One dimension
B. Two dimensions
C. Three dimensions
D. None of these
|
| 5 | 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
|
| 6 | A rotating body tends to be slower, when its angular acceleration is: |
A. Positive
B. Negative
C. Zero
D. Infinity
|
| 7 | 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: |
A. 0.05 m
B. 0.08 m
C. 0.8 m
D. 0.008 m
|
| 8 | 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
|
| 9 | When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to: |
A. Zero
B. Its average velocity
C. Its angular displacement
D. None of these
|
| 10 | The rear wheels of an automobile are rev/sec which is reduced to 38 rad/sec in 5 seconds when brakes are applied. Its angular acceleration is: |
A. 5 rad/sec2
B. -10 rav/sec2
C. -10 rad/sec2
D. -5 rav/sec2
|
Test Questions
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Ahmed Qureshi
14 Feb 2018wt