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

  • Total Questions30

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ECAT Pre General Science Physics Chapter 5 Circular Motion

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Question # 1

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

Question # 2

A body can have constant velocity when it follows:

Question # 3

Direction of motion _______ in circular motion

Question # 4

Direction of motion_______ in circular of motion:

Question # 5

When a body moves along a circular path with constant speed, it has an acceleration, which is always directed

Question # 6

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:

Question # 7

One radian is:

Question # 8

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 # 9

Centripetal acceleration is also called ________ acceleration

Question # 10

Centripetal acceleration is also called _______ acceleration:

Question # 11

Satellites are held in orbits around Earth by its:

Question # 12

Which of the following pairs does not have identical dimensions?

Question # 13

The number of countries who manage the largest satellite system is:

Question # 14

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

Question # 15

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

Question # 16

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 # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

Centripetal force performs:

Question # 22

When body moves along a circular path with constant speed, it has an acceleration, which is always directed;

Question # 23

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 # 24

Direction of motion _________ in circular motion

Question # 25

When angular acceleration is positive, the body rotates:

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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 # 30

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

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