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

Direction of motion_______ in circular of motion:

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

When body moves along a circular path with constant speed, it has an acceleration, which is always directed;

Question # 4

One radian is

Question # 5

One radian is:

Question # 6

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 # 7

The center of mass of a sphere lies at:

Question # 8

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:

Question # 9

A body moving along the circumference of a circle of radius R completes one revolution. The radius of the covered path to the angle subtended at the center is:

Question # 10

______ plays the same role during angular motion as played by the mass in linear motion

Question # 11

When angular acceleration is positive, the body rotates:

Question # 12

When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:

Question # 13

Centripetal acceleration is also called ______ acceleration

Question # 14

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

Question # 15

When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
2 In case of planets, the necessary acceleration is provided by:
A. Gravitational force
B. Coulomb force
C. Frictional force
D. None of these
3 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of these
4 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
5 Einstein's theory about gravity if better than Newton's because it gave explanation of:
A. Inverse square law
B. Bending of light
C. Both A and B
D. None of above
6 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:
A. 38 m/sec
B. 3.8 m/sec
C. 0.6 m/sec
D. None of these
7 A body can have constant velocity when it follows:
A. A circular path
B. A rectilinear path
C. Trajectory of a projectile
D. None of these
8 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
9 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
10 Circular motion is an example of motion in:
A. One dimension
B. Two dimensions
C. Three dimensions
D. None of these

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