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
Shanghai Science Edition 8th Grade Physics
Lu Jiao Edition Ninth Grade Physics Volume 2
Lu Jiao Edition Ninth Grade Physics Volume 1
Beijing Normal University eighth grade physics volume one
Lu Ke Edition High School Physics Compulsory Course One
Guangdong and Shanghai Edition Ninth Grade Physics Volume 1
Beijing Normal University Ninth Grade Physics Volume 1
People's Education Press High School Physics Compulsory Course II
Lu Jiao Edition Eighth Grade Physics Volume 2
Beijing Normal University Ninth Grade Physics Volume 2
Lu Jiao edition eighth grade physics volume 1
Guangdong and Shanghai Edition Ninth Grade Physics Volume 2
Category | Format | Size |
---|---|---|
People's Education Edition Ninth Grade Physics Complete Book | pptx | 6 MB |
Description
"Energy and Sustainable Development" PPT Courseware 2
1. Directionality of energy transfer and energy conversion
Want to discuss
Since energy is conserved, the energy on the earth will not decrease. Why do we need to save energy?
In the process of heat transfer, heat can only be spontaneously transferred from a high-temperature object to a low-temperature object, not the other way around. If you want to transfer heat from a low-temperature object to a high-temperature object, you need to consume other forms of energy.
For example, refrigerators consume electricity.
When a car brakes, due to friction, kinetic energy is converted into the internal energy of the tires, ground and air. This consumed energy can no longer be used to drive the car automatically.
The transformation and transfer of energy are directional, some energy can be utilized, and some cannot.
The energy we can use is limited, so we need to save energy.
2. Impact of energy consumption on the environment
Fossil energy is converted into internal energy through combustion, and a considerable part of the internal energy is not effectively utilized.
Vehicle exhaust causes air pollution and the urban heat island effect.
The large amount of carbon dioxide produced by fuel combustion intensifies the earth's greenhouse effect.
3. Energy and sustainable development
1. Improve energy utilization and reduce environmental damage during energy use.
2. Develop new ideal energy sources
Non-renewable energy:
Fossil energy, nuclear energy and other energy sources will be used less and less.
Renewable Energy:
Solar energy, wind energy, water energy, etc. can be obtained continuously in nature.
Want to discuss
In the energy family, there are wood, coal, oil, natural gas, hydro energy, wind energy, solar energy, nuclear energy, etc. Which ones are non-renewable energy? What are renewable energy sources?
Which do you think wind energy, solar energy, nuclear energy, and other possible energy sources you think of may become the ideal energy source of the future, and why?
Keywords: Energy and Sustainable Development Teaching Courseware, New People's Education Edition Ninth Grade Physics PPT Courseware, Ninth Grade Physics Slide Courseware Download, Energy and Sustainable Development PPT Courseware Download, .ppt format
For more information about the "Energy and Sustainable Development" PPT courseware, please click the Energy and Sustainable Development ppt tab.
"Energy Revolution" Energy and Sustainable Development PPT Courseware:
"Energy Revolution" Energy and Sustainable Development PPT Courseware Teaching Objectives 1. Knowledge and Skills Understand the changes brought by energy conversion technology to human beings with common sense, and roughly understand the role of the three revolutions in social development. A preliminary understanding that energy transfer and transformation are directional. 2..
"Solar Energy" Energy and Sustainable Development PPT Courseware 6:
"Solar Energy" Energy and Sustainable Development PPT Courseware 6 Teaching Objectives 1. Know the origin and characteristics of solar energy. 2. Understand how solar energy is used. 1. Source of solar energy Fusion of atomic nuclei in the sun (thermonuclear reaction) occurs, releasing huge nuclear energy. two,..
"Nuclear Energy" Energy and Sustainable Development PPT Courseware 5:
"Nuclear Energy" Energy and Sustainable Development PPT Courseware 5 Nuclear energy Nuclear energy (or atomic energy) is the energy released from the nucleus by converting its mass, in line with Albert Einstein's equation E=mc, where E=energy, m=mass , c=speed of light constant. Nuclear energy passes through three types of nuclear...
File Info
Update Time: 2024-09-27
This template belongs to Physics courseware People's Education Edition Ninth Grade Physics Complete Book industry PPT template
"Energy and Sustainable Development" PPT Courseware 2 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 "Energy and Sustainable Development" PPT Courseware 2 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
"Energy and Sustainable Development" PPT Courseware 2, 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.)