Question # 1

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

Choose an answer

3

24

126

200

An axis of rotation

Choose an answer

Is a straight line

Is normal to the plane of rotation

Passes through pivot point O

All of them

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

Choose an answer

Along the tangent

Towards the centre

Away from the centre

None of them

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

Choose an answer

No work is done on it

No acceleration is produced in the body

Velocity remains constant

None of these

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

Centripetal acceleration is also called ______ acceleration:

Choose an answer

Tangential

Radial

Angular

None of them

Angular velocity is a:

Choose an answer

Scalar quantity

Vector quantity

Complex quantity

None of these

A disc rolls down a hill and its speed at bottom is found to be 11.4 m/sec. Height of the hill is then nearly:

Choose an answer

10 m

12 m

13 m

15 m

Conventionally the angular velocity is directed at an angle of

Choose an answer

90° to the axis of rotation

30° to the axis of rotation

0° to the axis of rotation

None of the above

Conventional the angular Velocity is Directed at an angle of:

Choose an answer

90° to the axis of rotation

30° to the axis of rotation

0° to the axis of rotation

None of above

Centripetal acceleration is also called ________ acceleration

Choose an answer

Tangential

Radial

Angular

None of these

The useful unit of angular replacement in SI unit is:

Choose an answer

Degree

Revolution

Radian

Metre

A point on the rim of a wheel moves 0.2 m where the wheel turns through an angle is 14.3 degrees. The radius of the wheel is:

Choose an answer

0.05 m

0.08 m

0.8 m

0.008 m

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:

Choose an answer

22/7

7

14

21

The center of mass of a sphere lies at:

Choose an answer

The axis of the sphere

Circumference of sphere

Center of the sphere

None of them

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

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:

Choose an answer

8.1 X 10⁷N

625 N

6250 N

None of these

Angular momentum is a:

Choose an answer

vector quantity

Imaginary quantity

Complex Quantity

Scalar Quantity

Centripetal acceleration is also called _______ acceleration:

Choose an answer

Tangential

Radial

Angular

None of them

More Classes

Other Links

ECAT Pre General Science 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