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"Building a "Bridge" with Paper" Shape and Structure PPT Courseware
Papermaking "bridge"
Materials: A piece of newspaper, Scotch tape, knife, double-sided tape, ruler
Requirements: span 35 cm, width 10 cm, load-bearing weight of 200 grams.
1. Issues to consider in papermaking “bridge”
1. Characteristics of paper
2. How to enhance the bending resistance of paper
3. What shape and structure to choose
4.How to connect them together firmly
2. Introduce and evaluate our “bridge”
1. The length, width and load-bearing capacity of the paper bridge.
2. How to change the shape and structure, and what scientific knowledge is applied?
3. What difficulties did you encounter and how did you solve them?
4. Where are there deficiencies and how can they be improved?
fill in the blank:
1. According to the different structures of bridges, bridges can be divided into many types. There are four basic types: _____, _____, _____, and floating bridge.
2. The steel cable bridge is composed of _____, _____ and bridge deck; its distinctive feature is __________ from a functional point of view _____.
3. For an arch bridge whose deck is under the arch, the bridge deck can pull _____ and offset the outward _____ of the arch. The bridge deck is tensed by the force in the _____ direction, which also increases the bridge deck's resistance to bending.
4. Huge stone arches in nature have stood firm for thousands of years. People were inspired by nature to build _____, _____ and arch bridges.
judge
1. The most important thing when designing and making a bridge is to consider that the bridge can bear load and will not bend. ( )
2. Changing the shape of an object can change its ability to resist bending. ( )
3. The bending resistance of two pieces of paper must be stronger than that of one piece of paper. ( )
4. Most of the ancient city gates were built in an arched shape just for the sake of appearance. ( )
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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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