Gravitation:

The most interesting and important Subject Physics of 9th Class Chapter-05. Student want to know the important Questions and  physics notes for 9th class , to prepare it according to BISE Punjab. We are providing the Solution of Student Problems.

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Physics Ch-05, 9th

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1 / 30

Which one of the following converts light energy into electrical energy?

Electrical Generator

Electrical cell

Photocell

Electric Bulb

2 / 30

Value of g increases with the ___________

increase in altitude

Increase in mass of body

Decrease in altitude

none of these

3 / 30

Speed of GPS Satellite is______

3.87 kms-1

5.0 kms-1

7.9 kms-1

5.6 kms-1

4 / 30

When an object is at a height equal to radius of Earth above the surface of the earth. What is the value of gn?

9/4

4g

2g

9/2

5 / 30

The orbital speed of a low orbit satellite is _____________

1. Zero
2. 8ms^-1
3. 800ms^-1
4. 8000ms^-1

which is Correct option ?

Option-2

Option-1

Option-4

Option-3

6 / 30

The altitude of geostationary orbits in which communications satellites are launched above the surface of Earth is ____________

850km

6400km

42300km

1000km

7 / 30

In System International, the value of G is________

1. 6.4 x 10⁶ Nm²kg^-2
2. 6.4.x 10^-11 Nm²kg^-2
3. 6.67 x 10¹¹ Nm²kg^-2
4. 6.67 x 10^-11 Nm²kg^-2

which is the Correct Answer ?

Option-4

Option-3

Option-1

Option-2

8 / 30

Weight of the body of Mass 10-kg on the surface of Moon_______

16N

160 N

1.62 N

None of these

9 / 30

What is not true about g?

g is greater at poles

g decrease as go higher

g is less at poles

g is different at different places

10 / 30

Height of the Geostationary Satellite above the surface of earth is_________

36000 km

42300 km

1000 km

3600 km

11 / 30

Unit of Gravitational Field Strength is_____

N kg-1

N

J

Nm

12 / 30

If the distance between two masses is half, then the Force of Gravitation becomes_______

Four Times

Doubled

One Fourth

Half

13 / 30

As we go up the value of G becomes_________

Decreases

Unchanged

Doubled

Increases

14 / 30

Radius of Earth is________

1. 6.4.x 10⁶ km
2. 6.4x10⁶m
3. 6x 10⁶m
4. 6 x 10⁶ km

which is the Correct Option ?

Option-3

Option-4

Option-2

Option-1

15 / 30

The SI unit of gravitational force is______

ms-2

None of these

Nm2kg-2

Newton

16 / 30

If the weight of an object on the surface of earth is W. Its weight on the surface of moon will be___________

W/8

W/6

6W

W/4

17 / 30

Gravitational Force on the surface of Earth is equal to_______

W

G

All of these

g

18 / 30

An Artificial Satellite keeps on revolving around the earth in different orbits with uniform speed due to the?

 

Coulomb Force

Frictional Force

Gravitational Force

Electromagnetic Force

19 / 30

What will be the value of G if Mass of the Earth becomes Four Times_______

One Fourth

Doubled

Four Times

No Change

20 / 30

If a Rocket is fired vertically with a speed of ________, it will start revolving around the earth.

8 kms-1

9.8 ms-1

8 ms-1

11.2 kms-1

21 / 30

The value of g at a height one earth’s radius above the surface of Earth is _________

1/2g

1/4g

1/3g

2g

22 / 30

Earth’s Gravitational force of attraction vanishes at_________

1000km

6400km

42300km

Infinity

23 / 30

If Mass of two bodies is 1kg and distance between their centers is 1m then the gravitational force will be equal to________

g

G

V

None of these

24 / 30

The Force which pulls the object towards the center of circle is known as ________force.

Gravitational

Frictional

Coulomb

Centripetal

25 / 30

_________predicted about artificial satellites about 300 years ago.

Einstein

Galileo

Newton

Faraday

26 / 30

The mass of Earth is approximately_________

1. 6.9 x 10²⁴ kg
2. 6.0 x 10^-24 kg
3. 6.0x 10²⁴ kg
4. 5500 x 10²⁴ kg

which one is Correct Answer ?

Option-4

Option-2

Option-1

Option-3

27 / 30

Distance of Moon from Earth is________

3,000,000 km

3,80,000 km

30,000 km

38,000 km

28 / 30

The value of g on moon’s surface is 1.6ms^-2. What will be the weight of a 100kg body on the surface of the moon?

1600N

1000N

160N

100N

29 / 30

On Mountains our weight will be _________ as compared to Weight on the surface of Earth

Greater

None of these

Less

Equal

30 / 30

Relative velocity of Geostationary satellite with respect to earth is_______

Zero

9.8 ms-1

7.9 kms-1

11.2 kms-1

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MCQs PHYSICS 9TH CHAPTER 05

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NUMERICALS PHYSICS 9TH CHAPTER 05

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LONG QUESTIONS PHYSICS 9TH CHAPTER 05

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TEXT BOOK EXERCISE SOLUTION PHYSICS 9TH CHAPTER 05

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Physics Notes, Numerical for Class 9th

If your are talking about the Study material of Class 9th Physics Notes chapter-05, Physics Notes for 9th Class Chapter-05, eStudent.pk is providing same helpful content against each chapter of Physics Class 9 notes pdf downloadable format of PTB book. For each chapter  there are short questions, long question, multiple-choice questions, and numerical. Similarly, in the case of extra material, there are long questions, short questions, and multiple-choice questions. So, every student can check these notes and prepare for exams.

How did we prepare from these notes? any Student of 9th class should prepared all the long question of each chapter first and practiced all the numerical as well in good grip. Then he should skimmed through all the multiple-choice question and short questions of same chapter. That should be enough for him to prepare a chapter and secure good marks in exams. All reader should use this technique if you like this.

Chapter wise PDF Notes / Problems / Numerical Solution of Physics

                 Chapter-01 – Physical Quantities and Measurements

                 Chapter-02 -Kinematics

                 Chapter-03 – Dynamics

                 Chapter-04 – Turning Effect of Forces

                 Chapter-05 – Gravitation

                 Chapter-06 – Work and Energy

                 Chapter-07 – Properties of Matter

                 Chapter-08 – Thermal Properties of Matter

                 Chapter-09 – Transfer of Heat

                 Pairing Scheme for 2021 – Physics 9th Class