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

Circular motion is an example of motion in:

Question # 2

A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:

Question # 3

Conventional the angular Velocity is Directed at an angle of:

Question # 4

A body can have constant velocity when it follows:

Question # 5

Centripetal acceleration is also called ______ acceleration:

Question # 6

Direction of motion _________ in circular motion

Question # 7

Centripetal acceleration is also called ______ acceleration

Question # 8

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

Question # 9

One radian is:

Question # 10

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

Question # 11

Moment of inertia depends upon:

Question # 12

A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:

Question # 13

Conventionally the angular velocity is directed at an angle of

Question # 14

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:

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 Satellites are held in orbits around Earth by its:
A. Gravitational field
B. Magnetic field
C. Own orbital motion
D. Own spin motion
2 One radian is
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of these
3 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
4 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
5 A rotating body tends to be slower, when its angular acceleration is:
A. Positive
B. Negative
C. Zero
D. Infinity
6 Direction of motion ______ in circular motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
7 ______ 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
8 Direction of motion _________ in circular motion
A. Changes off and on
B. Changes continously
C. Does not change
D. None of them
9 If a gymnast 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. Remain constant
D. None of these
10 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these

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