9th Class English Medium Physics Chapter 9 Transfer of Heat Short Questions With Answers

9th Class Physics Chapter 9 Online Preparation

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Online Short Questions For Chapter 9 "9th Class Physics English Medium Chapter 9 Preparation "

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Physics (New Book) - 9th Class Physics English Medium Chapter 9 Preparation

Question # 1

What is global warming?

Ans 1: During the recent years, the percentage of carbon dioxide has been increased considerably.This has caused an increase in the average temperature of the Earth by trapping more heat due to greenhouse effect.This phenomenon is known as global warming.

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Prepare Complete Set Wise Questions For Chapter 9 "9th Class Physics English Medium Chapter 9 Preparation "

Set 1

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Set 2

10 Questions
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Set 3

10 Questions
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Set 4

10 Questions
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Set 5

10 Questions
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Set 6

10 Questions
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Set 7

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Set 8

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Set 9

10 Questions
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9th Class Physics English Medium Chapter 9 Preparation - Set 1

Question # 1

What is global warming?

Ans 1: During the recent years, the percentage of carbon dioxide has been increased considerably.This has caused an increase in the average temperature of the Earth by trapping more heat due to greenhouse effect.This phenomenon is known as global warming.

Submit

9th Class Physics English Medium Chapter 9 Preparation - Set 2

Question # 1

Define radiation

Ans 1: Radiation: Radiation is the mode of transfer of heat from one place to another in the form of waves called electromagnetic waves
Radiation depends upon following three factors
Colour and texture of the surface
Surface temperature, Surface area

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9th Class Physics English Medium Chapter 9 Preparation - Set 3

Question # 1

What is the thermos flask

Ans 1: The thermos flask is a double walled glass vessel, that prevent heat to enter or leave the flask and maintain the temperature inside the flask

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9th Class Physics English Medium Chapter 9 Preparation - Set 4

Question # 1

What measurements do you suggest to converse energy in houses

Ans 1: Measurements to converse energy
We should switch off extra electric equipment's in
order to conserve energy in houses
The use to LED lights can also conserve electricity.

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9th Class Physics English Medium Chapter 9 Preparation - Set 5

Question # 1

Write the name some bad conductors.

Ans 1: Materials which trap air is wool, felt, feathers, polystyrene, fiber, glass are bad conductors.

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9th Class Physics English Medium Chapter 9 Preparation - Set 6

Question # 1

Write two examples of good and bad conductors each

Ans 1: Good Conductors of Heat is Iron, Copper, Aluminum Bad conductors of heat is Wool ,Fur, Air

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9th Class Physics English Medium Chapter 9 Preparation - Set 7

Question # 1

Write any two uses of conductors

Ans 1: Good Conductors are used when quick transfer of heat is required through a body Cookers, cooking plates, boiler, radiators and condensers of refrigerator etc, are made of metals such as aluminum and copper for the better conduction
Metal boxes are used for makijg ice and ice cream etc

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9th Class Physics English Medium Chapter 9 Preparation - Set 8

Question # 1

What is meant by convection current

Ans 1: The path of flow of current which is used for the transfer of heat by actual movement of molecules for hot place to a cold place is known as convection current

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9th Class Physics English Medium Chapter 9 Preparation - Set 9

Question # 1

What is radiation

Ans 1: Radiation is the mode of transfer of heat from one place to another place in the form of waves called electromagnetic waves.

Submit

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9th class Physics Chapter 9 (English Medium)

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Matric Part 1/9th Class Physics Chapter 9 Short Question Test With Answer for Unit 9 Transfer of Heat

9th Class English Medium Subjects

9th Class Urdu Medium Subjects

Online Short Questions For Chapter 9 "9th Class Physics English Medium Chapter 9 Preparation "

Physics (New Book) - 9th Class Physics English Medium Chapter 9 Preparation

What is global warming?

Define convection

What measurements do you suggest to converse energy in houses

Define thermals.

Define the of flow of heat and write its mathematical form.

What are the actors on which rate of emission of radiation depends

Write the ways by which transfer of heat takes place

Why Styrofoam boxes are used to keep food hot or ice cream for a long time.

Define thermal conductivity

Write name of two expert Thermal riders

Prepare Complete Set Wise Questions For Chapter 9 "9th Class Physics English Medium Chapter 9 Preparation "

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

9th Class Physics English Medium Chapter 9 Preparation - Set 1

What is global warming?

Define convection

What measurements do you suggest to converse energy in houses

Define thermals.

Define the of flow of heat and write its mathematical form.

What are the actors on which rate of emission of radiation depends

Write the ways by which transfer of heat takes place

Why Styrofoam boxes are used to keep food hot or ice cream for a long time.

Define thermal conductivity

Write name of two expert Thermal riders

9th Class Physics English Medium Chapter 9 Preparation - Set 2

Define radiation

What is meant by transfer of heat

Explain why

Define rate of flow of heat

Write two examples of good and bad conductors each

Why are the metals good conductors of heat

Write two uses of non-conductors

Why interior surface of pots made polished

Which measures are taken to save energy

What is greenhouse effect?

9th Class Physics English Medium Chapter 9 Preparation - Set 3

What is the thermos flask

On which factors does rate of heat flow depends upon?

Write two uses of non-conductors

Define the of flow of heat and write its mathematical form.

How various surfaces can be compared by a Lessie cube

Give two uses of convection currents

What are the actors on which rate of emission of radiation depends

What is meant by convection currents

Why Styrofoam boxes are used to keep food hot or ice cream for a long time.

What is meant by convection current

9th Class Physics English Medium Chapter 9 Preparation - Set 4

What measurements do you suggest to converse energy in houses

Explain the impacted of treehouse effect in global warming

In what factors flow of heat depends upon for solids

Give two uses of convection currents

Define convection.

Which measures are taken to save energy

What is green house effect

Why we avoid wear dark colure dresses in summer season

What is meant by global warming

How heat energy from the sun reach to earth

9th Class Physics English Medium Chapter 9 Preparation - Set 5

Write the name some bad conductors.

Write difference between land breeze and sea breeze

Differentiate between conductors and insulator