| Category | Format | Size |
|---|---|---|
| E-education edition fifth grade science volume 1 | pptx | 6 MB |
"Winding Mountain Highway" Highway PPT Courseware 2
Description
"Winding Mountain Highway" Highway PPT Courseware 2
What is the difference between a road up a mountain and a road on a plain?
Plain roads: The road surface is flat. The road is straight.
The road up the mountain: The road surface is sloping and goes around the mountain. We call them winding roads.
A wooden plank laid diagonally like this is a simple machine, and people call it an inclined plane.
Experiment: The Effect of Inclined Planes
Experimental Materials:
Dynamometer
Slopes of different lengths
weights with hook
wooden blocks of different heights
Record Form
How are you going to conduct this experiment?
Experimental requirements:
1. Division of labor and cooperation
2. Operate carefully
3. Observe carefully
4. Record carefully
What we found
The length remains unchanged, and the smaller the height, the smaller the slope and the less effort.
The height remains unchanged, and the greater the length, the smaller the slope, and the easier it is to save effort.
It saves effort and distance.
Let’s talk about it: Why does the winding mountain road go around in circles?
The purpose of the winding mountain road is to lengthen the road surface of the mountain road and reduce the slope of the mountain road, so that cars can save more effort when going up the mountain.
Two people are riding bicycles through the same hillside. When going uphill, one walks in a straight line and the other walks in a curve. Can you tell who takes less effort? why?
The reason why bicycles go uphill and around in curves is to lengthen the road surface of the mountain road and reduce the slope of the mountain road, so that the bicycle can save more effort when going up the mountain!
Expand and extend
The control variable method means: when studying the relationship between a certain problem (such as physical quantities, etc.) and multiple factors, only one factor is changed at a time, while other factors remain unchanged, and the relationship between this changed factor and the problem under study is analyzed. relationship, and then analyze and synthesize to draw conclusions (or rules). The experiment in this lesson is to study the relationship between the action of the inclined plane and height and length. Only one factor (height or length) is changed at a time, keeping other factors unchanged (the same wooden block, etc.), and then the relationship between this changed factor and the problem under study is analyzed. .
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For more information about the "Highway Winding Mountain Highway" PPT courseware, please click the Highway ppt Winding Mountain Highway ppt tab.
"Winding Mountain Highway" Highway PPT Courseware 3:
"Winding Mountain Highway" Highway PPT Courseware 3 Characteristics of the mountain road: From the bottom of the mountain to the top of the mountain, it does not directly form a straight slope, but winds around the mountains, forming a winding mountain shape. What is the difference between a road up a mountain and a road on a plain? The road is sloping, on the mountain...
"Winding Mountain Highway" highway PPT courseware:
"Winding Mountain Highway" highway PPT courseware The most shocking Tongtian Avenue in Tianshan Mountain in Hunan Province In May 2005, the Tianshan Mountain Highway was completed and opened to the public. The mountain road, which is called Tongtian Avenue, has a total length of 99. It looks like a jade-shaped road, rising up from the ground, and leaning against the mountain wall.
File Info
Update Time: 2024-06-28
This template belongs to science courseware E-education edition fifth grade science volume 1 industry PPT template
"Winding Mountain Highway" Highway 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!
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