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 equal to:

Question # 2

Which of the following pairs does not have identical dimensions?

Question # 3

A car is turning around a corner at 10 m/sec as it travels along an arc of circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path:

Question # 4

INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:

Question # 5

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

Question # 6

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 # 7

One radian is equal to:

Question # 8

If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will

Question # 9

An axis of rotation

Question # 10

Moment of linear momentum is called.

Question # 11

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

Question # 12

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

Question # 13

Direction of motion _______ in circular motion

Question # 14

A disc rolls down a hill and its speed at bottom is found to be 11.4 m/sec. Height of the hill is then nearly:

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 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
2 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of these
3 When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:
A. Along the tangent
B. Toward the centre
C. Away from the centre
D. None of them
4 Satellites are held in orbits around Earth by its:
A. Gravitational field
B. Magnetic field
C. Own orbital motion
D. Own spin motion
5 ______ 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
6 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
7 Direction of motion _______ in circular motion
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
8 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of
A. KHz
B. MHz
C. GHz
D. BHz
9 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
10 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

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