Sơ đồ tư duy vật lý 6 chương nhiệt học dễ hiểu và dễ nhớ

What are the knowledge of physical materialism 6 chapters? Students can easily know the amount of knowledge of thermal learning chapter to learn, but many of you still have difficulty summarizing knowledge and how to remember them more effectively. The following article will help them summarize all the chapter knowledge and how to draw a thermocouple thinking diagram. Refer to the article now!

Summary of physical knowledge of 6 chapters to remember

Before drawing a 6 -chapter physical material material, we will generalize the whole knowledge once. From there, there is a refinement of knowledge to remember to put into Mindmap Physics this chapter. There are 8 main lessons in Chapter II.

The hatching of the heat of the solid

Review the heat of solids. (Photo: Shining Home - Gia đình Anh Ngữ)

What phenomenon when the solid is when the temperature is? Review knowledge about the properties of hatching because the heat of the solids according to the information summary table below

See also: Physics 6: Theory of the heat of solids (+ Answering the easy -to -understand exercises)

Knowledge to remember

Content

The phenomenon of solids is encountered in life

Epphen tower in France created by steel (solid), in the summer, the tower expands because of the heat, so its height increases

Theory of solid heat expansion

The solids expand when high temperatures and shrink when the temperature is reduced

Different solids have different heat enlargement.

For example, when the temperature increases, the increase in the volume of the solids below is different

  • Aluminum: 3.54 cm3

  • Copper: 3.55 cm3

  • Iron: 1.80 cm3

Application of solid heat

  • Application in dual tape manufacturing

  • Making knife stitches, sickle stitches

  • On the train track, between rails often leave a small slot. Because when the temperature rises, the rail may expand.

Application questions

Why is the distance between tiles that are larger outdoors than the distance from the tiles inside the house?

(Answer: Because the outdoor weather temperature increases, leading to expansion between bricks.)

Liquid heat

Review the heat of the liquid. (Photo: Shining Home - Gia đình Anh Ngữ)

Like solids, when the surrounding temperature changes, the liquid also has certain changes. Let's summarize knowledge about the heat of liquid according to the table below. In addition, you can see more: Physical theory 6 Lesson 19 Excessive expansion because of the heat of the liquid (solving easy -to -understand exercises)

Knowledge to remember

Content

The phenomenon of the liquid is encountered in life

When we boil water, fill the kettle, when the temperature increases, the water will overflow.

The theory of heat expansion of liquid

The liquid expands when heating: when the surrounding temperature increases, the liquid has the phenomenon of expansion. Depending on the temperature level, the liquid expands more or less

The liquid shrinks when cold: When the temperature drops, the liquid begins to shrink. The level of shrinkage is more or less depending on the decrease of the temperature

Different liquids have different heat hatches

For example, when the temperature increases, the volume increase of some liquids is as follows

  • Alcohol: 58 cm3

  • Oil: 55 cm3

  • Mercury: 9 cm3

Application for heat expansion

  • Producing soft drink bottles people just put the bottle, not filled because when encountered high temperatures, the bottle can break

  • Keep the water kettle if not when the boiling water is easy to overflow

  • Application as a thermometer to measure temperature

Application questions

Which phenomenon will occur when heating a liquid?

(Answer: When heating a liquid, the volume of the liquid increases)

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The hatching of the heat of gas

Review the hatching because of the heat of the gas. (Photo: Shining Home - Gia đình Anh Ngữ)

Finally, what characteristics do we see for the heat of the gas? The table below is a summary of knowledge to remember. For gas, see the more detailed lesson in the hatching of the heat of physical gas 6: Explain the theory and practice exercises

Knowledge to remember

Content

The blooming phenomenon of gas in life

Boil water, water turns into gas. The boiling temperature increases, we see more and more gases escape

Theory of hatching for heat of gas

The gas blooms when heating and shrinking when cold goes

Different gases hatch because the same heat

For example

Application for heat expansion of gas

  • Pumping bicycle to avoid pumping too tight because when it is hot, it is easy to explode

  • Dip the plastic ball distorted in warm water, the ball will swell itself

  • The balloon contains hot air inside so it can fly

Application questions

When dipping the table tennis, it is dented in hot water, it will swell again. Why?

(Answer: Because hot water makes the gas in the ball bloom)

Compare the heat of solids, liquid, gas

The heat of the heat of three solids, liquid, and gas is similar and different.

The same: The three substances are blooming when heating and shrinking when cold

Different:

Solid

Liquid

Gas

Different solids hatch because of different heat

Different liquids also bloom because of the various heat

However, different gases hatch because of the same heat

Solids hatch because heat is less than liquid and gas

Liquid hatches because more heat than solids

The gas blooms more heat than liquids and solids

Thermometer – temperature scale

Thermometer review - temperature scale. (Photo: Shining Home - Gia đình Anh Ngữ)

In the 6 -chapter physical material material diagram also includes the following important knowledge: thermometer & temperature scale. Here is all knowledge to remember.

What is thermometer

Knowledge to remember

Content

Thermometer definition

The thermometer is the tool used to measure the temperature. From the thermometer originating in Greek, “heat” means temperature, “plan” means measurement.

Uses of thermometer

The main use of thermometer is used to measure temperature. The thermometer is used for many different purposes such as

  • Measure body temperature during health check

  • Food testing

  • Use thermometer in laboratories

  • Thermometer in air conditioning tools, refrigerators, air conditioners …

  • Thermometer used to measure outdoor climate

Structure of thermometer

Most thermometer consists of two main parts

  • Temperature sensor part

  • The result display – There is a division table of measurement limit (GHĐ) and the smallest division (ĐCN)

Principles of thermometer

The thermometer operates based on the expansion of the heat of the substances: hot, then it is cold

Thermometer

  • Alcohol thermometer: can replace mercury thermometer and also have the same function as measuring water temperature, environment, atmosphere, … alcohol thermometer measures low temperatures

  • Mercury thermometer: long -standing and widely used

  • Electronic thermometer: Including the sensor part, LCD and power off button. The thermometer is accurate, safe to use.

There are also many other types of thermometer such as electrical thermometer, metal thermometer, other specialized thermometer …

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Temperature scale

What is temperature scale?

Temperature scale used by the international unit system (SI) is the Celsius scale. This scale was named after the Swedish astronomer, Anders Celsius.

In addition, depending on the convention we have 3 different types of temperature scale according to the table below

Xenxiut temperature scale

Farenhai temperature scale

Kenvin temperature scale

Unit

° C (degree C)

° F (degree f)

° K (degree k)

Conventional

  • The melting ice temperature is ° C

  • The boiling water temperature is 100 ° C

  • The melted ice temperature is 32 ° F

  • The boiling water temperature is 212 ° F.

  • Temperature 0 ° C corresponds to 273 ° K

  • 100 ° C corresponds to 373 ° K

The formula to remember

  • 1 ° C = 1.8 ° F

  • ° C = (° F – 32 ° F)/1.8 ° F

  • 1 ° C = 274 ° K

° F = ° C x 1.8 ° F + 32 ° F

Melting and frozen

Review melting and freezing. (Photo: Shining Home - Gia đình Anh Ngữ)

The next lesson we need to review in the heat chapter is the melting and the frozen of substances. This is an important lesson because it helps us understand the phenomena that occur in everyday life.

Let's learn the same knowledge according to the table below

Knowledge to remember

Content

What is melting? For example

When substances shift from solid to liquid, we call it melting

For example, the phenomenon of stone dissolves into water

What is the frozen? For example

When substances change from liquid to solids, we call the freezing

For example, freezing water in some low temperatures in the world

Characteristics of melting and freezing

  • Each substance is melted or solidified at a certain temperature. We call that temperature the melting temperature.

  • The melting temperature of different substances is different

  • The temperature of the object does not change during melting time

  • Melting and frozen are two completely opposite processes

Application of melting and freezing in life

Application of melting:

  • Application to bronze casting, bells, …

  • Applications in the profession of glass shaping: bottles, jars, decorations …

  • Candle

Application of freezing

  • Ice cream, ice

  • In the metallurgical industry

Evaporation and condensation

Review evaporation and condensation. (Photo: Shining Home - Gia đình Anh Ngữ)

Based on where can we recognize the evaporation and condensation? What is the application of these two phenomena in life?

Knowledge to remember

Content

What is evaporation? For example

The evaporation is the process of changing from liquid to the steam of a substance

For example, we see evaporation from the lake to the air.

What is condensation? For example

The condensation is a process of transition from vapor to liquid

For example: Early in the morning we see the drops of water on the leaves (also known as the morning dew drops)

Characteristics of evaporation and condensation

Characteristics of evaporation

  • Not only water, but also the liquid evaporates

  • At any temperature of the liquid, the evaporation will take place

  • It is possible to see the evaporation with the naked eye through observing the kettle when boiling

Condensation characteristics

  • Condensation is the opposite process with evaporation

What factors depend on evaporation and condensation depending on what factors

The process of rapid evaporation & fast condensation depends on two factors: temperature and pressure

  • The higher the temperature, the faster the evaporation, the slower the condensation

  • The lower the temperature, the slower evaporation. The faster the condensation

  • The higher the pressure, the slower the evaporation, the faster the condensation

  • The lower the pressure, the faster the evaporation, the slower the condensation

Application in life

  • If using wind oil, we should cover the lid, the amount of oil will not gradually run away.

  • In the printing industry, Son Phu also applies the evaporation

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Boiling

Review boiling. (Photo: Shining Home - Gia đình Anh Ngữ)

The last lesson needs to synthesize knowledge as boiling. See more answer: What is boiling? What are the characteristics of boiling? (Physical knowledge 6)

Knowledge to remember

Content

What is boiling? For example

The process of changing from liquid to gases occurs both inside and on the liquid surface called boiling

For example, boiling water to 100 degrees, boiling (evaporated water and boiling)

Characteristics of boiling

  • The temperature of a liquid when boiling is called the boiling temperature of that substance

  • During the boiling time, the temperature of the liquid did not change

  • Different substances have different boiling temperatures

Boiling

Volatilization

  • For boiling liquid evaporation on airy surface + in the heart of liquid

  • The boiling occurs at a certain boiling point

  • While boiling, the liquid temperature does not change

  • When there is evaporation, the liquid only evaporates on the airy surface

  • Evaporation occurs at any temperature

  • When evaporating the liquid temperature increases

Application of boiling

When cooking foods to be cooked, drinking water to boil …

See also: Summary of all physical knowledge 6

6 -chapter physical material material diagram

Below is a 6 -chapter physical material material, which shows how to systematize knowledge into mindmap to help students easily visualize the entire amount of knowledge. Study the method of logical thinking diagrams makes it easier to remember our knowledge.

Link to download 6 -chapter physical material material diagram: Click here to download

Physical material diagram 6 chapters of thermos. (Photo: Shining Home - Gia đình Anh Ngữ)

So Shining Home – Gia đình Anh Ngữ has completed the topic of 6 -chapters of physical materialism for 6th grade students who are in need of reviewing this part. Through this, they not only review the theory but also answer some useful questions related to the heat chapter. To get more good lessons about different subjects, follow the basic knowledge category from Shining Home – Gia đình Anh Ngữ!

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