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

______ plays the same role during angular motion as played by the mass in linear motion

Question # 2

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

Question # 3

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

Question # 4

One radian is:

Question # 5

Direction of motion_______ in circular of motion:

Question # 6

Direction of motion ______ in circular motion:

Question # 7

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 # 8

Direction of motion _________ in circular motion

Question # 9

Circular motion is an example of motion in:

Question # 10

Conventionally the angular velocity is directed at an angle of

Question # 11

The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is:

Question # 12

Moment of inertia depends upon:

Question # 13

When a body moves with a constant speed in a circle:

Question # 14

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

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 Centripetal acceleration is also called ________ acceleration
A. Tangential
B. Radial
C. Angular
D. None of these
2 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:
A. Radius of the circle
B. Twice the radius
C. Thrice the radius
D. None of these
3 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
4 Centripetal acceleration is also called _______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
5 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 cm
C. 0.8 m
D. 0.008 m
6 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
7 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:
A. KHz
B. MHz
C. GHz
D. BHz
8 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
9 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
10 Satellites are held in orbits around Earth by its:
A. Gravitational field
B. Magnetic field
C. Own orbital motion
D. Own spin motion

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