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 motion

Question # 2

Which one is related to angular motion:

Question # 3

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

Question # 4

Centripetal acceleration is also called ______ acceleration

Question # 5

A 1000 Kg car travelling with a speed of 90 km/hr turns around a curve of radius 0.1 km. The necessary centripetal force comes out to be:

Question # 6

Centripetal force performs:

Question # 7

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

Question # 8

A rotating body tends to be slower, when its angular acceleration is:

Question # 9

The useful unit of angular replacement in SI unit is:

Question # 10

Moment of inertia depends upon:

Question # 11

A stone is tied to the end of a 20 cm along string is whirled in a horizontal circle.
if centripetal acceleration is 9.8 m/sec2, then its angular velocity in rad/sec is:

Question # 12

Direction of motion ______ in circular motion:

Question # 13

One radian is:

Question # 14

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 # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is:
A. 0.05 m
B. 0.08 m
C. 0.8 m
D. 0.008 m
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 Centripetal force performs:
A. Maximum work
B. Negative work
C. Positive work
D. None of these
4 The center of mass of a sphere lies at:
A. The axis of the sphere
B. Circumference of sphere
C. Center of the sphere
D. None of them
5 In rotational motion, analogue of force F us called:
A. Couple
B. Torque
C. Mass
D. Moment of intertia
6 Direction of motion _______ in circular motion
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
7 Centripetal acceleration is also called ______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
8 Conventionally the angular velocity is directed at 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 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
10 When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:
A. Zero
B. Its average velocity
C. Its angular displacement
D. None of these

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