ECAT Pre General Science Physics Chapter 5 Circular Motion

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  • Chapter NameCh 5 - Circular Motion

ECAT Pre General Science Physics Chapter 5 Circular Motion

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ECAT Pre General Science Physics Chapter 5 Circular Motion

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Question # 1

Which one is related to angular motion:

Question # 2

Moment of linear momentum is called.

Question # 3

When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:

Question # 4

Einstein's theory about gravity if better than Newton's because it gave explanation of:

Question # 5

A rotating wheel accelerates up to the value of 0.75 rev/sec2after 2 seconds of its start. Its angular velocity becomes:

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

Centripetal acceleration is also called ______ acceleration

Question # 8

The rear wheels of an automobile are rev/sec which is reduced to 38 rad/sec in 5 seconds when brakes are applied. Its angular acceleration is:

Question # 9

An axis of rotation

Question # 10

Centripetal acceleration is also called _______ acceleration:

Question # 11

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

Question # 12

Conventionally the angular velocity is directed at an angle of

Question # 13

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

Question # 14

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 # 15

The useful unit of angular replacement in SI unit is:

Question # 16

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 # 17

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

Question # 18

When angular acceleration is positive, the body rotates:

Question # 19

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

Question # 20

Which of the following pairs does not have identical dimensions?

Question # 21

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 # 22

Direction of motion_______ in circular of motion:

Question # 23

In case of planets, the necessary acceleration is provided by:

Question # 24

One radian is equal to:

Question # 25

Direction of motion _________ in circular motion

Question # 26

A body can have constant velocity when it follows:

Question # 27

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

Question # 28

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

Question # 29

Centripetal force performs:

Question # 30

Conventionally the angular velocity is directed to an angle of:

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