"Finding Arches" Shape and Structure PPT Download

Description

"Looking for Arches" Shape and Structure PPT Download

Part One Content: New Lesson Exploration

Dome and spherical load carrying capacity

Research content Dome-shaped and spherical load-bearing capacity

Experimental materials table tennis, books

Experimental steps

1. Observe the table tennis ball and see the thickness, softness and hardness of the shell;

2. Place a book on half a table tennis ball and see how many books can be placed on it?

3. If you squeeze and press a complete table tennis ball hard with your hands, will it easily collapse?

Research Focus What are the similarities between domes, spheres, and arches?

Compare the pressure-bearing characteristics of dome-shaped and spherical shapes

Dome-shaped pressure-bearing characteristics

The dome shape has the characteristics of arch bearing large pressure and does not produce outward thrust, so it can withstand greater pressure.

Characteristics of spherical pressure bearing

The force exerted on any part of the sphere can be evenly distributed around it, so the sphere is stronger than any other shape.

Find the arch PPT, the second part of the content: Think about it:

What scientific principles are involved in the shape design of plastic beverage bottles?

1. The dome shape is evenly compressed and difficult to deform.

2. Cylindrical shape saves material.

3. The pattern of the bottle can play an anti-slip role.

Find the arch PPT, the third part: expansion and extension

The National Stadium (Bird's Nest) is located in the center of the Olympic Park complex. The terrain is slightly raised. The undulating base softens the volume of the container and gives it a dramatic arc appearance. Gathered into a grid - like a bird's nest woven from tree branches.

The central building of the National Center for the Performing Arts is a semi-elliptical steel structure shell. The entire shell has a simple and elegant style. Its surface is composed of 18,398 titanium metal plates and 1,226 ultra-white transparent glass. The two materials are cleverly spliced ​​to present beautiful curves, creating a visual effect of the stage curtain slowly opening.

Find the Arch PPT, Part 4: Class Summary

Domes, spheres, etc. have similar characteristics to arches and can withstand a lot of pressure.

Find Arch PPT, Part 5: Classroom Exercises

1. Judgment

1. Domes, spheres, etc. have the same characteristics as arches and can withstand great pressure. ( )

2. Eggshells, turtle shells, and seashells are all arched structures that can protect themselves well. ( )

3. The spherical shape is formed by rotating around the line connecting the arched feet as the axis. ( )

4. The bottle is designed in this shape because of its beauty. ( )

2. Fill in the blanks

1. If force is applied to any part of the sphere, the force can be dispersed to all sides ( ), so the sphere is better than any other shape ( ).

2. There are many examples of using arcs around us, such as ( ), ( ).

3. The arches in living organisms include ( ), ( ) and ( ), etc.

Find Arch PPT, Part Six: Homework

Check the information and talk about which other buildings in the world have arch structures?

Keywords: Free download of Chinese PPT courseware for the first volume of the sixth grade in the textbook edition, download of Arch PPT, download of Shape and Structure PPT, .PPT format;

For more information about the PPT courseware "Shape and Structure to Find Arches", please click on the Shape and Structure PPT to Find Arches PPT tab.

"Finding Arches" Shape and Structure PPT Teaching Courseware:

"Finding Arches" Shape and Structure PPT Teaching Courseware Part One: Introduction of New Lessons There are many arc-shaped things around us. Do they have anything to do with arches? Do you want to know? ... ... ... Find the arched PPT, the second part of the content: new lesson learning..

"Looking for Arches" Shape and Structure PPT:

"Looking for Arches" Shape and Structure PPT Part One: Dome-shaped and Spherical There are many dome-shaped and spherical objects in life. Have you noticed? Observe the cut-open table tennis shell, take a look and pinch it. Its thickness...

"Finding Arches" Shape and Structure PPT Courseware 4:

"Looking for Arches" Shape and Structure PPT Courseware 4 What are the characteristics of an arched structure carrying gravity? When the arch is subjected to vertical pressure, horizontal thrust is generated to both sides at the same time, and the force is transmitted downward and outward to the adjacent parts. Observe the cut-open table tennis shell, look at it, pinch it...

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Update Time: 2024-09-23

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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