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

Conventionally the angular velocity is directed at an angle of

Question # 2

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

Question # 3

The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are

Question # 4

Centripetal force performs:

Question # 5

Angular momentum is a:

Question # 6

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

Question # 7

Formula for calculating moment of inertia of the bodies of one pair is same. Tick the answer.

Question # 8

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

Question # 9

Direction of motion _________ in circular motion

Question # 10

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 # 11

Which of the following pairs does not have identical dimensions?

Question # 12

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:

Question # 13

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

Question # 14

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

Question # 15

Moment of inertia depends upon:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 The instantaneous acceleration of a body moving with constant speed in a circle:
A. Remains constant
B. Is called centripetal acceleration
C. Tangential acceleration
D. None of these
2 The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are
A. 3
B. 24
C. 126
D. 200
3 A rotating body tends to be slower, when its angular acceleration is:
A. Positive
B. Negative
C. Zero
D. Infinity
4 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
5 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
6 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
7 If a gymnast is sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will:
A. Increase
B. Decrease
C. Remains constant
D. None of these
8 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
9 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
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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