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

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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

Why is land breeze blow from land towards sea

Ans 1: Land breeze blow from land toward sea because at night, the land cools faster than the sea, Therefore, air above the sea is warmer, rises up and colder air from the land begins to move toward the sea.

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

Set 1

10 Questions
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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

10 Questions
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Set 8

10 Questions
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Set 9

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

Question # 1

Why is land breeze blow from land towards sea

Ans 1: Land breeze blow from land toward sea because at night, the land cools faster than the sea, Therefore, air above the sea is warmer, rises up and colder air from the land begins to move toward the sea.

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

Question # 1

How many sides of a Leslie cube are

Ans 1: A shining silvered surface,A dull black surface, A while surface, A coloured surface

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

Question # 1

Why metals are good conductors of heat

Ans 1: Metals are good conductors of heat because they have free electrons. These free electrons move with very high velocities within the metals hey carry energy at a very fast rate from hot to cold parts of object

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

Question # 1

Explain the impact of greenhouse effect in global

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 This has serious implications for global climate.

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

Question # 1

On which factors does rate of heat flow depends upon

Ans 1: There are three factors on which rate of flow depends upon
Cross sectional area of a solid
Temperature difference between ends
Length of the solid

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

Question # 1

Write two consequences of radiations

Ans 1: Different objects absorb different amount of heat radiations falling upon them A black coloured body gets hot quickly by absorbing heat radiations coming to it also cools down quickly by radiating heat to its surroundings.

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

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 8

Question # 1

How various surfaces can be compared by a Lessie cube

Ans 1: It is a metal box with four surfaces
A shining silvered surface, A dull black surface, A white surface, A coloured surface,
Hot water in filled in the Leslie cube
It is laced with its one end toward a radiation detector. It is found that dull black surface is a good emitter of heat

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

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.