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

When a body moves with a constant speed in a circle:

Question # 2

Moment of inertia depends upon:

Question # 3

When a body moves with a constant speed in a circle:

Question # 4

Einstein's theory about gravity if better than Newton's because it gave explanation of:

Question # 5

The center of mass of a sphere lies at:

Question # 6

In case of planets, the necessary acceleration is provided by:

Question # 7

Which one is related to angular motion:

Question # 8

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 # 9

Conventionally the angular velocity is directed at an angle of

Question # 10

Centripetal acceleration is also called ______ acceleration:

Question # 11

One radian is equal to:

Question # 12

One radian is:

Question # 13

Centripetal acceleration is also called _______ acceleration:

Question # 14

Centripetal acceleration is also called ______ acceleration

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 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:
A. 38 m/sec
B. 3.8 m/sec
C. 0.6 m/sec
D. None of these
2 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:
A. Radius of the circle
B. Twice the radius
C. Thrice the radius
D. None of these
3 Direction of motion _______ in circular motion
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
4 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
5 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
6 When body moves along a circular path with constant speed, it has an acceleration, which is always directed;
A. Along the tangent
B. Towards the centre
C. Away from the centre
D. None of them
7 The number of countries who manage the largest satellite system is:
A. 3
B. 24
C. 126
D. 200
8 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
9 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of these
10 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:
A. 5 rad/sec2
B. -10 rev/sec2
C. -10 rad/sec2
D. -5 rev/sec2

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