ECAT Pre General Science Chapter 5 online mcq test with answers for Physics chapter 5 (Circular Motion)

ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test

Try the ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test.

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ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test

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Question # 1

One radian is:

Greater than one degree A
Less than one degree B
Equal to one degree C
None of them D

Question # 2

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

Gravitational force A
Coulomb force B
Frictional force C
None of these D

Question # 3

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:

0.05 m A
0.08 m B
0.8 m C
0.008 m D

Question # 4

An axis of rotation

Is a straight line A
Is normal to the plane of rotation B
Passes through pivot point O C
All of them D

Question # 5

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

Positive A
Negative B
Zero C
Infinity D

Question # 6

One radian is equal to:

30.3° A
45.3° B
50.3° C
57.3° D

Question # 7

A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:

49 rad/sec² A
1 rad/sec² B
0.16 rev/sec² C
Both A and C D
Both B and C E

Question # 8

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

KHz A
MHz B
GHz C
BHz D

Question # 9

The useful unit of angular replacement in SI unit is:

Degree A
Revolution B
Radian C
Metre D

Question # 10

The rear wheels of an automobile are rotating with an angular velocity of 14 rev/sec which is reduced to 38 rad/sec in 5 second when brakes are applied. Its angular acceleration is:

5 rad/sec² A
-10 rev/sec² B
-10 rad/sec² C
-5 rev/sec² D

Question # 11

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:

1 m A
5 m B
10 m C
15 m D

Question # 12

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

Inverse square law A
Bending of light B
Both A and B C
None of above D

Question # 13

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

No work is done on it A
No acceleration is produced in the body B
Velocity remains constant C
None of these D

Question # 14

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

No work is done on it A
No acceleration is produced in the body B
Velocity remains constant C
None of these D

Question # 15

Centripetal acceleration is also called ______ acceleration:

Tangential A
Radial B
Angular C
None of them D

Question # 16

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:

Radius of the circle A
Twice the radius B
Thrice the radius C
None of these D

Question # 17

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

Disc, sphere A
sphere, hoop B
Thin rod, hoop C
Hoop,disc D

Question # 18

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:

10 m A
12 m B
13 m C
15 m D

Question # 19

The center of mass of a sphere lies at:

The axis of the sphere A
Circumference of sphere B
Center of the sphere C
None of them D

Question # 20

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

Degree A
Revolution B
Radian C
Metre D

Question # 21

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

Zero A
Its average velocity B
Its angular displacement C
None of these D

Question # 22

Satellites are held in orbits around Earth by its:

Gravitational field A
Magnetic field B
Own orbital motion C
Own spin motion D

Question # 23

One radian is:

Greater than one degree A
Less than one degree B
Equal to one degree C
None of these D

Question # 24

In rotational motion, analogue of force F us called:

Couple A
Torque B
Mass C
Moment of intertia D

Question # 25

Direction of motion _______ in circular motion

Changes off and on A
Changes continuously B
Does not change C
None of them D

Question # 26

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

3 A
24 B
126 C
200 D

Question # 27

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

3 A
24 B
126 C
200 D

Question # 28

Direction of motion _________ in circular motion

Changes off and on A
Changes continously B
Does not change C
None of them D

Question # 29

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:

0.05 m A
0.08 m B
0.8 m C
0.008 m D

Question # 30

Moment of linear momentum is called.

Moment arm A
Moment of inertia B
Inertia C
Angular momentum D

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ECAT Pre General Science Physics Chapter 5 MCQ Test With Answer for Physics chapter 5 (Circular Motion)

ECAT Pre General Science Physics Chapter 5 Test

ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test

ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test

One radian is:

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

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:

An axis of rotation

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

One radian is equal to:

A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:

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

The useful unit of angular replacement in SI unit is:

The rear wheels of an automobile are rotating with an angular velocity of 14 rev/sec which is reduced to 38 rad/sec in 5 second when brakes are applied. Its angular acceleration is:

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:

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

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

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

Centripetal acceleration is also called ______ acceleration:

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:

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

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:

The center of mass of a sphere lies at:

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

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

Satellites are held in orbits around Earth by its:

One radian is:

In rotational motion, analogue of force F us called:

Direction of motion _______ in circular motion

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

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

Direction of motion _________ in circular motion

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:

Moment of linear momentum is called.

Prepare All ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test MCQs With Answers

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Test Questions

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: