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Transfer of Heat:

The most interesting and important Subject Physics of 9th Class. 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.

Here is important MCQs for 9th Class, Physics Chapter # 09

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Physics Ch-09, 9th

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1 / 30

Feathers of the birds are__________

Conductor

Insulators

None of these

Semi-conductor

2 / 30

Transmission of heat by waves without affecting medium on its way__________

Radiation

Convection

Conduction

All of these

3 / 30

Movement of water on heating is shown by the crystal of_______

Calcium Carbonate

None of these

Sodium Chloride

Potassium Permanganate

4 / 30

Which one is/are the insulator (s)?

All of these

Cork

Cotton

Rubber

5 / 30

Unit of thermal conductivity is _____________

Wm^-1K^-1
Wm^-1K^-2
W m^-2 K^-1
W m² K^-1

Which Option is Correct ?

Option-4

Option-1

Option-3

Option-2

6 / 30

The gases in the Earth’s atmosphere, which causes the greenhouse effect_________

None of them

Carbon dioxide

Both "Carbon dioxide" & "Water vapors"

Water vapors

7 / 30

Transfer of heat by the actual movement of molecules____

All of these

Conduction

Radiation

Convection

8 / 30

Which of the following is a good radiator of heat?

A White Surface

A Shining Silvered Surface

A Dull Black Surface

A Green Colored Surface

9 / 30

Black surfaces are _________ emitter.

Worst

Good

Poor

Best

10 / 30

Ventilation in our houses is only possible due to____________

Convection

Radiation

Conduction

All of these

11 / 30

Room are heated using gas heater by_________

Convection and Radiation

Conduction Only

Convection Only

Radiation Only

12 / 30

Global warming in the world is due to_____

Greenhouse Effect

Land and Sea Breezes

Radiation

None of These

13 / 30

Colored surfaces are ___________ absorber.

Poor

Best

Worst

Good

14 / 30

What happens to the thermal conductivity of a wall if its thickness is doubled?

Becomes Half

Becomes One Forth

Remains the Same

Becomes Double

15 / 30

Convection of heat is the process of heat transfer due to the _________ of the molecules.

Free Movement

Downward Movement

Upward Movement

Random Motion

16 / 30

Styrofoam is a __________________

Conductor

None of These

Bad Conductor

Semi-conductor

17 / 30

False Ceiling is done due to _____________

Insulate the Ceiling

Lower the Height of Ceiling

Cool the Room

Keep the Roof Clean

18 / 30

Which of the following is best for insulation?

Glass

Fiber glass

Brass

Air

19 / 30

Land and sea breezes are due to___________

Radiation

All of these

Conduction

Convection

20 / 30

Heat from sun reaches us by _________

All of these

Radiation

Conduction

Convection

21 / 30

Water is a_____________

Poor conductor

Good conductor

Insulator

Super Conductor

22 / 30

In gases, heat is mainly transferred by____________

Convection

radiation

Conduction

Molecular collision

23 / 30

In solids, heat is transferred by_______

Absorption

Conduction

Convection

Radiation

24 / 30

Ice is an___________

Good Conductor

Perfect Conductor

None of these

Bad Conductor

25 / 30

Geysers work on the principle of___________

Convection

Radiation

All of these

Conduction

26 / 30

Transmission of heat from one body to another body by the interaction of atoms and electrons____

Radiation

Convection

All of these

Conduction

27 / 30

Land breeze blows from____________

Sea to Land During the Day

Land to Sea During the Day

Land to Sea During Night

See the Land During Night

28 / 30

Shinning silvered surfaces are __________ reflector.

Good

Worst

Best

Poor

29 / 30

Metals are good conductor of heat due to the____________

big size of their molecules

Free Electrons

rapid vibration of their atoms

small size of their molecules

30 / 30

There are _________methods of transmission of heat.

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Result:

User Name	Start	Score
ghazala ehsan	08:35:39 Feb 08, 2025	86%
ghazala ehsan	08:28:30 Feb 08, 2025	36%
slimshady	14:13:17 Mar 18, 2024	76%
Fahim Ul Abbas	23:52:42 Feb 23, 2024	76%
Ayesha	22:28:31 Feb 13, 2024	70%
Zaib	01:45:53 Feb 12, 2024	86%
Lun	01:40:17 Feb 12, 2024	43%
mubeen ahmed	22:01:21 Feb 11, 2024	86%
Ahmad	10:51:54 Jan 30, 2024	80%
Ayesha shafaqat	07:15:15 Dec 11, 2023	56%
Annie	12:15:21 Dec 06, 2023	90%
Syed Muhammad Hassan	19:27:21 Nov 29, 2023	93%
Syed Muhammad Hassan	19:22:16 Nov 29, 2023	80%
Raju	19:04:05 Apr 18, 2023	66%
ffff	14:13:36 Feb 21, 2023	76%
Syeda amina	14:55:14 Feb 11, 2023	26%
Zainab	05:52:09 Jan 27, 2023	93%
Zainab	05:48:42 Jan 27, 2023	80%
Shuja Rehman	15:55:16 Jan 26, 2023	60%
M.Shawaiz	20:36:38 Dec 17, 2022	73%
Eman	18:45:00 Sep 20, 2022	50%
Faryal	12:59:22 May 14, 2022	66%
Amna	21:31:05 Apr 15, 2022	83%
Farwa	18:59:53 Apr 13, 2022	70%
Hassan	17:17:39 Aug 07, 2021	23%
Afzaal	15:05:29 Jul 29, 2021	33%

MCQs in PDF Format Chapter -09

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Physics Notes for Class 9th

if your are talking about the course material of Class 9th Physics Notes. eStudent.pk is providing some helpful content against each chapter of Physics Class 9 notes pdf downloadable of our 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.