People's Education Edition Physics for Grade 8, Volume 2
People's Education Edition Ninth Grade Physics Complete Book
Shanghai Science Edition Ninth Grade Physics
People's Education Edition Physics for Grade 8, Volume 1
Beijing Normal University eighth grade physics volume one
Shanghai Science Edition 8th Grade Physics
Lu Jiao Edition Ninth Grade Physics Volume 1
Beijing Normal University Ninth Grade Physics Volume 1
Lu Jiao Edition Ninth Grade Physics Volume 2
Lu Ke Edition High School Physics Compulsory Course One
Guangdong and Shanghai Edition Ninth Grade Physics Volume 1
People's Education Press High School Physics Compulsory Course II
Guangdong and Shanghai version of eighth grade physics volume 2
Beijing Normal University Ninth Grade Physics Volume 2
Lu Jiao Edition Eighth Grade Physics Volume 2
Guangdong and Shanghai Edition Ninth Grade Physics Volume 2
!["Melting and Solidification" Changes in State of Matter PPT](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/36c555cf-d5cf-487e-9686-cfc25c8f1a1a.webp)
Category | Format | Size |
---|---|---|
People's Education Edition Physics for Grade 8, Volume 1 | pptx | 6 MB |
Description
"Melting and Solidification" Changes in State of Matter PPT
Part One: Preview Perception
1. Changes in physical state
1. The three states of matter: ________, ________ and ________.
2. As _________ changes, matter changes between three states.
3. Changes in physical state: changes between substances ____________________.
2. Melting and Solidification
1. Melt.
The process by which matter changes from the ________ state to the ________ state.
2. Solidify.
The process by which matter changes from the ________ state to the ________ state.
3. Crystalline and amorphous.
(1) Crystal: It has a melting temperature of ________.
(2) Amorphous: ________ fixed melting temperature.
3. Melting point and freezing point
1. Melting point: The temperature at which a crystal _________.
2. Freezing point: The temperature at which a crystal _________.
3. The freezing point of the same substance is _________ its melting point, amorphous _________ the definite melting point or freezing point.
4. Melting endotherm and solidification exotherm
The melting process requires ________ heat, and the solidification process requires ________ heat.
Melting and Solidification PPT, Part 2 Content: Interactive Classroom Understanding
Comparison of crystalline and amorphous
[Example] A new design has appeared in modern architecture: small granular balls are evenly mixed into the wall decoration materials, and an amorphous material is filled into the balls. When the temperature rises, the material in the balls melts and absorbs heat. When the temperature decreases, the material in the ball solidifies and releases heat, keeping the temperature in the building basically unchanged. Among the four images shown in the figure, the one that represents the solidification image of the material in the ball is ()
Click: Select the amorphous solidified image.
Analysis: Because the amorphous material is mixed into the wall, there will be no solid-liquid coexistence during the solidification process, and its temperature will continue to drop. A is the amorphous solidification image, B is the amorphous melting image, C is the crystal melting image, and D is the crystal solidification image.
Answer:A
Melting and Solidifying PPT, Part 3: Try the Application
1. Changes in physical state
1. (2018·Inner Mongolia Chifeng Midterm) Among the following situations, the one that belongs to the change of physical state is ()
A. A piece of mirror fell to the ground and broke into pieces.
B. Desks made of wood
C. A steel ingot is pressed into a steel plate
D. A steel ingot was turned into molten steel
2. (2018·Yunnan Dizhou Midterm) There are three states of matter in nature, namely ________ state, ________ state and ________ state. These three states can transform into each other under certain conditions. In physics, the process of changing matter from one state to another is called ____________________. Due to the _______________ of water in nature, there are clouds, rain, dew, fog, frost, snow, hail, etc.
2. Melting and Solidification
3. The process of matter changing from solid to liquid is called ()
A. Solidification B. Condensation C. Melting D. Dissolution
4. The scenery of the North, with "thousands of miles of ice" in winter and "ice and snow melting" in spring, from the perspective of changes in physical state, the process that water goes through ()
A. Both are melted B. Both are solidified
C. Melt first and then solidify D. Solidify first and then melt
5. Write down the changes in the state of matter in the following phenomena:
(1)The lit candle is crying ________.
(2) The ice added to the drink becomes smaller ________.
(3) The frozen Songhua River ________.
3. Melting point and freezing point
6. On a hot summer day, there is a metal spoon in a cup on the desk. Water from the thermos bottle (slightly less than 100 ℃) is poured into the cup. After a while, the metal spoon melts. When the water temperature in the cup dropped to room temperature (26°C), a metal block solidified in the cup. Which of the following judgments about this metal is correct ()
A. The melting point of the metal is higher than 100 ℃
B. The melting point of the metal is lower than 26 ℃
C. The freezing point of the metal is higher than 100 ℃
D. The freezing point of the metal is lower than 100 ℃
7. Figures A and B are respectively the temperature-time images of two substances A and B when they melt. It can be seen from the figure: Among the two substances A and B, the ________ substance is a crystal, and its melting point is ________℃.
8. (2018·Shandong Jinan Experimental Middle School Midterm) Solids can be divided into two categories: crystalline and amorphous. Among the substances such as a. beeswax, b. sea wave, c. ice, d. rosin, e. salt, f. naphthalene, g. glass, h. asphalt, those that belong to crystals include (fill in the letter) ________, and when they melt Absorb heat but temperature ________.
Keywords: Free download of PPT courseware for eighth-grade physics volume 1 of the People's Education Press, download of melting and solidification PPT, download of PPT on changes in state of matter, .PPT format;
For more information about the "Changes in State of Matter, Melting and Solidification" PPT courseware, please click on the "Changes in State of Matter ppt, Melting and Solidification ppt" tab.
"Melting and Solidification" Changes in the State of Matter PPT download:
"Melting and Solidification" Changes in the State of Matter PPT Download Part One: New Knowledge Summary 1. Changes in the State of Matter The three common states of matter in nature are ______, ______, and ______. The three states of the same substance can transform into each other under certain conditions. Various substances...
"Temperature" PPT teaching courseware on changes in states of matter:
"Temperature" PPT teaching courseware on changes in the state of matter Part 1: Basic knowledge points Knowledge point 1 Temperature and thermometer 1. Temperature is a physical quantity that represents the degree of hotness and coldness of an object. Thermometers are made based on the principle of thermal expansion and contraction of liquids. 2. Use the same thermometer to measure 0..
"Temperature" Changes in State of Matter PPT download:
"Temperature" PPT download of changes in the state of matter Part One: New knowledge review 1. Temperature 1. Temperature is a physical quantity that represents the ________ of an object, and is commonly represented by the symbol ____. 2. The human body's perception of the hot or cold degree of an object is unreliable. In order to accurately judge the temperature of an object...
File Info
Update Time: 2024-09-09
This template belongs to Physics courseware People's Education Edition Physics for Grade 8, Volume 1 industry PPT template
"Melting and Solidification" Changes in State of Matter PPT Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Melting and Solidification" Changes in State of Matter PPT is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Melting and Solidification" Changes in State of Matter PPT, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Preview
!["Melting and Solidification" Changes in State of Matter PPT](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/f116a1d4-d78d-4cce-bbe6-46989b020419.webp)