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

Satellites are held in orbits around Earth by its:

Question # 2

Moment of inertia depends upon:

Question # 3

Moment of linear momentum is called.

Question # 4

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

Question # 5

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

Question # 6

One radian is

Question # 7

One radian is equal to:

Question # 8

Angular velocity is a:

Question # 9

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec-2comes out to:

Question # 10

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 # 11

The center of mass of a sphere lies at:

Question # 12

Centripetal acceleration is also called _______ acceleration:

Question # 13

An axis of rotation

Question # 14

Centripetal force performs:

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 The useful unit of angular replacement in SI unit is:
A. Degree
B. Revolution
C. Radian
D. Metre
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 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
4 The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are
A. 3
B. 24
C. 126
D. 200
5 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
6 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
7 Moment of linear momentum is called.
A. Moment arm
B. Moment of inertia
C. Inertia
D. Angular momentum
8 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
9 Centripetal acceleration is also called ________ acceleration
A. Tangential
B. Radial
C. Angular
D. None of these
10 Moment of inertia depends upon:
A. Mass
B. Selection of axis of rotation
C. Both of them
D. None of these

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