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

In rotational motion, analogue of force F us called:

Question # 2

Conventional the angular Velocity is Directed at an angle of:

Question # 3

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

Question # 4

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

Question # 5

Angular momentum is a:

Question # 6

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

Question # 7

Centripetal acceleration is also called _______ acceleration:

Question # 8

A body moving along the circumference of a circle of radius R completes one revolution. The radius of the covered path to the angle subtended at the center is:

Question # 9

The instantaneous acceleration of a body moving with constant speed in a circle:

Question # 10

Angular velocity is a:

Question # 11

Radian is defined as the angle subtended at the center of a circle by an arc of:

Question # 12

Satellites are held in orbits around Earth by its:

Question # 13

Direction of motion_______ in circular of motion:

Question # 14

Direction of motion _________ in circular motion

Question # 15

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:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 Angular momentum is a:
A. vector quantity
B. Imaginary quantity
C. Complex Quantity
D. Scalar Quantity
2 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:
A. 8.1 X 107N
B. 625 N
C. 6250 N
D. None of these
3 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of them
4 The useful unit of the angular displacement in SI unit is:
A. Degree
B. Revolution
C. Radian
D. Metre
5 When body moves along a circular path with constant speed, it has an acceleration, which is always directed;
A. Along the tangent
B. Towards the centre
C. Away from the centre
D. None of them
6 Direction of motion _________ in circular motion
A. Changes off and on
B. Changes continously
C. Does not change
D. None of them
7 Centripetal force performs:
A. Maximum work
B. Negative work
C. Positive work
D. None of these
8 Centripetal acceleration is also called _______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
9 Conventional 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 above
10 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:
A. 0.05 m
B. 0.08 m
C. 0.8 m
D. 0.008 m

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