"Exploring the Density of Matter" Materials Around Us PPT Courseware 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!
| 文件名 如何下载使用 | 下载次数 | Download Points | 下载地址 |
|---|---|---|---|
| "Exploring the Density o... | 1325次 | 0.00 | Free Download |
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Exploring the Density of Matter" Materials Around Us PPT Courseware 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
"Exploring the Density of Matter" Materials Around Us PPT Courseware, 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.)
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view:Please click to see
Authoritative PPT Summary
"Exploring the Density of Matter" Materials Around Us PPT Courseware
teaching objectives
1. Understand the definition, formula and units of density.
2. Conversion of density units will be performed.
3. Through experiments, measurements, calculations, analyzes and comparisons, it is found that the ratios of the mass and volume of the same substance are the same, while the ratios of the mass and volume of different substances are different.
4. Experience the process of establishing the concept of density and understand the method of using ratio to define physical quantities.
5. Develop good habits of discussion, communication and mutual cooperation through experimental exploration.
Detection Preview Exchange Display
What is density?
What are the units of density? How to convert?
Know the density of common substances
What is the formula for calculating density?
1. The relationship between the mass and volume of an object
Conjectures and Assumptions:
What is your opinion?
Conjecture 1: The mass of the iron block is greater than the mass of the wood block
Conjecture 2: Is the mass of a small piece of iron greater than the mass of a large piece of wood?
Conjecture 3: When comparing the masses of two objects, we should not just look at the materials, but also consider their volumes. I would also like to suggest trying it through experiments.
Plan and design experiments:
1. Select the research object: wood block, iron block
2. Choose equipment
Measuring tools: balance scale
3. Experimental process arrangement
Analysis and Demonstration
1. For the same substance, the mass is directly proportional to the volume.
2. For the same substance, the ratio of mass to volume remains unchanged and has nothing to do with mass and volume.
3. For different substances, the ratio of mass to volume is generally different.
From the ratio of the mass to volume of the wood and iron blocks calculated above, we can know:
1: The mass per unit volume of the iron block is ________
2: The mass per unit volume of the wood block is _______
3: The mass per unit volume of the iron block and the wood block is _______
In order to represent the above characteristics of different substances, the concept of _____ was introduced in physics.
What is the density of matter?
The mass per unit volume of a substance is called the density of the substance.
Densities of several common substances:
1:The density of copper is_____________
The density of iron is_______________
The density of aluminum is _____________
The density of ice is _____________
The density of paraffin wax is___________
2:The density of mercury is___________
The density of sea water is___________
The density of pure water is___________
The density of kerosene is___________
The density of alcohol is___________
On-site training
It is usually said: "Iron is heavier than cotton", its meaning is ( )
A． The mass of iron is greater than that of cotton. B. The gravity of iron is greater than that of cotton.
C. Iron is denser than cotton D. Iron is larger than cotton
Density ρ=m／v, the correct statement is ( )
A. The larger the volume of a substance, the greater its density.
The greater the mass of substance B, the greater its density.
C. The density of a substance is directly proportional to its mass and inversely proportional to its volume.
D. Density is a characteristic of matter and has nothing to do with mass and volume.
density
For the same substance, its mass and volume are ( ), and their ratio is ( ). The mass and ratio of different substances are generally ( ). It can be seen that the ratio of mass and volume reflects the characteristics of matter. In physics, ( ) is used to reflect this characteristic of matter.
Application of density knowledge
A container can hold 100 grams of water. If it is used to hold some kind of oil, it can only hold 85 grams. Then the density of the oil is ( ) kg/m3.
The mass of an empty bottle is 300 grams, and the mass when filled with water is 800 grams. If it is filled with kerosene ( ) kg with a density of 0.8×103 kg/m3.
A bottle that can hold 1kg of water can hold kerosene ( )kg with a density of 0.8×103 kg/m3.
There is 80ml of water in the measuring cylinder. A metal block with a mass of 44.5g is immersed in the water. The water level rises to 85ml. This piece of metal is ( ).
A factory needs to use 2000m of copper wire with a cross-sectional area of 25mm2, so it is enough to use a scale to weigh ( ) kg of copper wire.
Three identical beakers are filled with salt water, water and alcohol each with a mass of 100g. The one with the highest liquid level should be ( )
A. Alcohol B. Water C. Salt water D. Unable to judge
There is a ring whose volume is 0.24cm3. Its mass is 4.2g when weighed on a balance. The following judgment is correct ( )
A. It may be pure gold. B. It may be gold-covered.
C. It may be copper. D. Unable to determine.
Operation:
Classwork: Questions 2, 3, and 4 on page p119.
Introduction (preview): a. Memorize the densities of water and five other common substances, learn to derive the deformation formula of density, and learn to use the deformation formula for calculations. b. Briefly describe the steps for measuring the density of solids and liquids.
Keywords: Materials around us teaching courseware, exploring the density of matter teaching courseware, Guangdong and Shanghai edition eighth grade physics PPT courseware download, eighth grade physics slide courseware download, matter around us PPT courseware download, exploring the density of matter PPT courseware Download, .PPT format;
For more information about the "Material around us exploring the density of matter" PPT courseware, please click on the "Material around us ppt exploring the density of matter ppt" tag.
"Exploring the Density of Matter" Materials Around Us PPT Courseware 2:
"Exploring the Density of Matter" Material Around Us PPT Courseware 2 An ancient story: In ancient times, there was an ancient kingdom of Syracuse in the Mediterranean. Its king gave a certain quality of gold to the goldsmith and asked the goldsmith to make it for himself. A crown of pure gold, when a crown is made...
"Scientific Inquiry: Density of Matter" Mass and Density PPT Courseware 3:
"Scientific Exploration: Density of Matter" Mass and Density PPT Courseware 3 [Experience] The relationship between the mass and volume of objects Activity 1: Take two iron blocks with different volumes and compare their masses. Activity 2: Take two iron and wooden blocks with the same volume and compare their masses..
"Scientific Inquiry: Density of Matter" Mass and Density PPT Courseware 2:
"Scientific Inquiry: Density of Matter" Mass and Density PPT Courseware 2 Discussion: 1. Compared with 1 catty of iron or 1 catty of cotton, which one is heavier? 2. Which one is heavier, 1m3 of iron or 1m3 of cotton? 3. Is the necklace real gold or gold-plated? (1) Ask questions: Question 1..