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

Choose an answer

0.05 m

0.08 cm

0.8 m

0.008 m

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

Choose an answer

Gravitational force

Coulomb force

Frictional force

None of these

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:

Choose an answer

22/7

7

14

21

Centripetal acceleration is also called ______ acceleration

Choose an answer

Tangential

Radial

Angular

None of them

Moment of linear momentum is called.

Choose an answer

Moment arm

Moment of inertia

Inertia

Angular momentum

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 9.8 m sec^-2comes out to be

Choose an answer

980 N

580 N

1380 N

Zero

When angular acceleration is positive, the body rotates:

Choose an answer

Slower

Slowest

Faster

None of these

Angular momentum is a:

Choose an answer

vector quantity

Imaginary quantity

Complex Quantity

Scalar Quantity

Direction of motion _________ in circular motion

Choose an answer

Changes off and on

Changes continously

Does not change

None of them

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

Choose an answer

980 N

580 N

1380 N

Zero

One radian is equal to:

Choose an answer

30.3°

45.3°

50.3°

57.3°

The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are

Choose an answer

3

24

126

200

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

Choose an answer

3

24

126

200

Which one is related to angular motion:

Choose an answer

Moment of a force

Moment of inertia

Moment of momentum

None of these

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

Choose an answer

Increase

Decrease

Remain constant

None of these

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

Choose an answer

Along the tangent

Toward the centre

Away from the centre

None of them

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

Choose an answer

Positive

Negative

Zero

Infinity

Centripetal acceleration is also called ________ acceleration

Choose an answer

Tangential

Radial

Angular

None of these

Angular velocity is a:

Choose an answer

Scalar quantity

Vector quantity

Complex quantity

None of these

More Classes

Other Links

ECAT Physics Chapter 5 Circular Motion Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer