ECAT Pre Computer Science Chapter 5 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 5 Circular Motion

Try The MCQ's Test For ECAT Physics Chapter 5 Circular Motion

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ECAT Physics Chapter 5 Circular Motion

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Question # 1

One radian is:

Question # 2

The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is:

Question # 3

The center of mass of a sphere lies at:

Question # 4

A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:

Question # 5

A body can have constant velocity when it follows:

Question # 6

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 # 7

A toy car moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed V of the car is:

Question # 8

Direction of motion _________ in circular motion

Question # 9

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 # 10

Direction of motion_______ in circular of motion:

Question # 11

Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.

Question # 12

One radian is:

Question # 13

The useful unit of the angular displacement in SI unit is:

Question # 14

Direction of motion _______ in circular motion

Question # 15

Angular momentum is a:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of
A. KHz
B. MHz
C. GHz
D. BHz
2 ______ plays the same role during angular motion as played by the mass in linear motion
A. Torque
B. Angular Momentum
C. Moment of a force
D. Moment of inertia
3 Satellites are held in orbits around Earth by its:
A. Gravitational field
B. Magnetic field
C. Own orbital motion
D. Own spin motion
4 Conventionally 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 the above
5 Centripetal acceleration is also called ______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
6 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
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 When a body moves with a constant speed in a circle:
A. No work is done on it
B. No acceleration is produced in the body
C. Velocity remains constant
D. None of these
9 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
10 The number of countries who manage the largest satellite system is:
A. 3
B. 24
C. 126
D. 200

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