Fifth Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 2
Science Edition for Sixth Grade Science Volume 1
Third Grade Science Volume 2, Textbook Edition
Third Grade Science Volume 1, Textbook Edition
Fourth Grade Science Volume 2, Textbook Edition
Fourth Grade Science Volume 1, Textbook Edition
Fourth-grade science volume 2 of the E-education edition
Qingdao Edition Fourth Grade Science Volume 2
Hunan Education Edition Fourth Grade Science Volume 1
E-education edition fifth grade science volume 1
E-education edition fifth grade science volume 2
E-education edition sixth grade science volume 1
Fifth Grade Science Volume 2, Textbook Edition
Qingdao Edition Fourth Grade Science Volume 1
People's Education Press Fourth Grade Science Volume 2
Category | Format | Size |
---|---|---|
E-education edition fourth grade science volume 1 | pptx | 6 MB |
Description
"How the Flag Raised" Flagpole and Shadow PPT Courseware
How is the flag raised?
Answer: The flag is raised using the combined action of pulleys and ropes.
The pulley is also a simple machine.
Why does the flag rise when the rope is pulled down?
Look closely at the flagpole. What do you notice?
There is a slot in the middle
Able to rotate around an axis
Wheels with this characteristic are called pulleys.
When in use, the pulley is fixed and is called a fixed pulley.
When in use, the pulley and the weight move together, which is called a pulley.
in conclusion
Fixed pulley: It cannot save effort, but it can change the direction of force.
Moving pulley: It can save effort, but it cannot change the direction of force.
Pulley block: It can save effort and change the direction of force.
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For more information about the PPT courseware "How the Flagpole and Shadow Raise the National Flag", please click the ppt tag of "Flagpole and Shadow How the National Flag Raises".
"How the Flag is Raised" Flagpole and Shadow PPT Courseware 2:
"How the National Flag is Raised" Flagpole and Shadow PPT Courseware 2 Every Monday, our school holds a flag-raising ceremony. Do you know how the flag is raised to the top of the flagpole? Do you know what's the secret on top of the flagpole? Question: Use a pulley to lift...
File Info
Update Time: 2024-10-19
This template belongs to science courseware E-education edition fourth grade science volume 1 industry PPT template
"How the Flag Raised" Flagpole and Shadow 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!
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