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

Question # 2

A point on the rim of a wheel moves 0.2 m where the wheel turns through an angle is 14.3 degrees. The radius of the wheel is:

Question # 3

In rotational motion, analogue of force F us called:

Question # 4

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

Question # 5

Conventionally the angular velocity is directed at an angle of

Question # 6

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

Question # 7

One radian is equal to:

Question # 8

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

Question # 9

The center of mass of a sphere lies at:

Question # 10

Which of the following pairs does not have identical dimensions?

Question # 11

An axis of rotation

Question # 12

The number of countries who manage the largest satellite system is:

Question # 13

Centripetal acceleration is also called ______ acceleration

Question # 14

The number of "Earth stations" which transmit signals to satellites and receive signals from them are:

Question # 15

When angular acceleration is positive, the body rotates:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is:
A. 2.5 sec
B. 0.06 sec
C. 15.7 sec
D. 0.4 sec
2 An axis of rotation
A. Is a straight line
B. Is normal to the plane of rotation
C. Passes through pivot point O
D. All of them
3 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
4 The useful unit of the angular displacement in SI unit is:
A. Degree
B. Revolution
C. Radian
D. Metre
5 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these
6 Direction of motion ______ in circular motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
7 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
8 Centripetal acceleration is also called _______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
9 The useful unit of angular replacement in SI unit is:
A. Degree
B. Revolution
C. Radian
D. Metre
10 In rotational motion, analogue of force F us called:
A. Couple
B. Torque
C. Mass
D. Moment of intertia

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