"Building a "Bridge" with Paper" Shape and Structure PPT Courseware 3

Description

"Building a "Bridge" with Paper" Shape and Structure PPT Courseware 3

Discussion summary

First, consider the characteristics of paper. The characteristic of paper's endurance is that it is resistant to tension but not compression, that is, its ability to resist bending is very poor. Paper is a "thin plate" material, so we need to consider how to enhance its bending resistance.

Second, what shape and structure should we choose for our bridge. These two aspects are interconnected and influence each other, and must be considered and selected together.

In addition, paper is limited, what parts does our bridge consist of, how much material is used for each, and how to connect them firmly together...

friendly reminder

Key points to note when preparing old newspapers:

First, the sizes must be the same. The unfolded dimensions of most newspapers are 77 cm long and 55 cm wide. Different sizes of newspapers should have different requirements for bridge construction.

Second, the newspaper should not be rubbed or folded too much.

How to introduce our "bridge"?

The length and width of the paper bridge and its load-bearing capacity.

How we change the shape and structure of paper and what science we apply.

How our design ideas are formed.

What difficulties were encountered during the production process and how were they solved?

What areas are not good enough and how can they be improved.

Test questions in class

1. True or False Questions (mark √ if correct, × if incorrect)

1. We can use big rocks to build a bridge of our choice in the classroom. ( )

2. Bridges can be divided into many types. The most basic four types are: beam bridge, arch bridge, cable bridge and pontoon bridge. ( )

3. The built bridge should not bear excessive load or bear load for too long. If it collapses once, the load capacity will be greatly reduced after recovery. ( )

4. The most important thing when designing and making a bridge is to consider that the bridge can bear load and will not bend. ( )

5. The bending resistance of two pieces of paper must be stronger than that of one piece of paper. ( )

2. Multiple choice questions

1. A thin and soft newspaper, use it ( ) to build a "bridge".

A. Can B. Can't

2. The bridge I made ( )

A. No need to carry weight B. Must be able to carry a certain weight

3. For the conjoined double-tube bridge, roll the newspapers into two cylinders and connect them with tape. Adding tape transversely to the mouth of the tube can strengthen it ( ).

A. Supporting force B. Connecting force C. Adhesion force

4. Which of the following papers has the strongest bending resistance ( )

A. Napkin B. Toilet paper C. Kraft paper D. Newspaper

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For more information about the PPT courseware "Shape and Structure: Use Paper to Build a Bridge", please click on the Shape and Structure ppt: Use Paper to Make a Bridge ppt tag.

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Update Time: 2024-09-08

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

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