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
Beijing Normal University eighth grade physics volume one
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
!["Power" Work and Mechanical Energy PPT Courseware 3](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/0cb1c973-485b-4f08-95e1-9c757231d135.webp)
Category | Format | Size |
---|---|---|
People's Education Edition Physics for Grade 8, Volume 2 | pptx | 6 MB |
Description
"Power" Work and Mechanical Energy PPT Courseware 3
There is a batch of bricks to be transported to a newly built building. What are the methods?
Method 1: Porters move in batches, which takes 3 hours;
Method 2: Use a crane to lift, it takes 1 minute;
Method 3: Use two cranes to lift, taking 30 seconds.
teaching objectives
1. Knowledge and skills
Understand the concept of power.
Understand the concept of power with examples.
Learn how power is used in real life.
2. Process and methods
Understand the physical meaning of power through observation.
3. Emotional attitudes and values
Have a thirst for scientific knowledge, be willing to explore natural phenomena and physical principles in daily life, and have the awareness to apply science and technology to daily life and social practice.
power
1. Physical meaning:
The work done per unit time.
A physical quantity that represents how quickly an object does work.
2. Formula: P=W/t
3. Unit:
power unit
SI unit: Watt, symbol W
1W=1J/s
Common units: kilowatt (kW), megawatt (MW)
1 KW=103 W 1 MW=106 W
Judgment: Does doing fast work necessarily mean doing more work?
uncertain! The speed of doing work is not determined by how much work is done!
Keywords: work and mechanical energy teaching courseware, power teaching courseware, New People's Education Edition eighth grade physics PPT courseware volume 2, eighth grade physics slide courseware download, work and mechanical energy PPT courseware download, power PPT courseware download, .ppt format
For more information about the "Power Work and Mechanical Energy" PPT courseware, please click on the Power ppt Work and Mechanical Energy ppt tab.
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File Info
Update Time: 2024-09-09
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