ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test

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  • Chapter NameCh 5 - Circular Motion
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ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test

  • Total Questions30

  • Time Allowed30

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ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test

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Question # 1

A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path:

Question # 2

Centripetal acceleration is also called ______ acceleration:

Question # 3

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 # 4

Conventionally the angular velocity is directed at an angle of

Question # 5

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

Question # 6

Centripetal acceleration is also called _______ acceleration:

Question # 7

A body can have constant velocity when it follows:

Question # 8

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 # 9

Conventionally the angular velocity is directed to an angle of:

Question # 10

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

Question # 11

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

Question # 12

One radian is equal to:

Question # 13

Direction of motion ______ in circular motion:

Question # 14

When angular acceleration is positive, the body rotates:

Question # 15

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

Question # 16

A toy car moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed V of the car is:

Question # 17

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

Question # 18

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

Question # 19

Angular velocity is a:

Question # 20

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

Question # 21

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 # 22

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

Question # 23

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 # 24

The number of "Earth stations" which transmit signals to satellites and receive signals from them are:

Question # 25

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 # 26

One radian is:

Question # 27

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

Question # 28

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

Question # 29

Angular velocity is a:

Question # 30

The center of mass of a sphere lies at:

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