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

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:

Question # 2

A body can have constant velocity when it follows:

Question # 3

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

Question # 4

Moment of linear momentum is called.

Question # 5

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 # 6

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 # 7

The center of mass of a sphere lies at:

Question # 8

One radian is:

Question # 9

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

Question # 10

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

Question # 11

When angular acceleration is positive, the body rotates:

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

Which one is related to angular motion:

Question # 14

Direction of angular momentum is determined by:

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 Direction of angular momentum is determined by:
A. Right hand rule
B. Head to tail rule
C. Left hand rule
D. None of them
2 A car is turning around a corner at 10 m/sec as it travels along an arc of circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path:
A. 1 m
B. 5 m
C. 10 m
D. 15 m
3 Moment of inertia depends upon:
A. Mass
B. Selection of axis of rotation
C. Both of them
D. None of these
4 ______ 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
5 Centripetal acceleration is also called ______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
6 In case of planets, the necessary acceleration is provided by:
A. Gravitational force
B. Coulomb force
C. Frictional force
D. None of these
7 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
8 The useful unit of the angular displacement in SI unit is:
A. Degree
B. Revolution
C. Radian
D. Metre
9 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:
A. KHz
B. MHz
C. GHz
D. BHz
10 Centripetal acceleration is also called ________ acceleration
A. Tangential
B. Radial
C. Angular
D. None of these

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