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"Building Towers" Shape and Structure PPT Courseware
Observing these towers, what do they have in common in shape and structure?
What forces does such a tall tower have to withstand?
How to put plastic bottles in the easiest way to pour them?
Why are plastic bottles so hard to pour?
How to do it, plastic bottles are the least likely to be poured?
What methods can we use to make objects less likely to fall?
Build a "tower" that won't fall down easily:
1. Discuss methods of designing and building tall towers.
2. Group discussion:
①Which materials to choose? Consider the characteristics of the material.
②What method is used to make the tower difficult to fall?
③Our tower design drawing.
3. Tower building requirements: Make our tower tall and stable.
4. Time limit is fifteen minutes.
Please explain the characteristics of a spherical object when it is subjected to pressure.
Answer: A. The spherical shape can be regarded as a combination of arches. B. It has the advantage that the arch can withstand large pressure. C. There is no force to push the arch outward when it is under pressure. D. Any part of the circle is subject to pressure. Force can be evenly dispersed around, so the spherical shape is stronger than any other shape
fill in the blank:
1. A skeleton structure like an iron tower is called ________, and its advantage is ________.
2. The most basic shapes of the building’s frame structure are triangles and _________.
3. The diagonal rod added to the quadrilateral plays the role of _________.
judge
1. The wind resistance is small and easy to fall. ( )
2. As long as an object is small at the top and large at the bottom, it will not fall easily. ( )
3. Objects that are light on the top and heavy on the bottom will definitely not fall easily. ( )
4. Plastic bottles are most difficult to pour when the mouth is downward. ( )
5. The wind resistance of the frame structure tower is relatively strong. ( )
6. The key to building a tall iron tower is to make it stable and not fall down. ( )
Please explain why the tower is stable.
Answer: The bottom is larger and the top is smaller; the bottom is heavy and the top is light; it adopts a large number of triangular frame structures, which is both strong and wind-resistant.
short answer questions
1. How to place plastic bottles for the easiest way to pour them?
Answer: It is easiest to pour when the bottle mouth is downward.
2. How to store plastic bottles so they are not easy to pour?
Answer: It is not easy to pour when the mouth of the bottle is upward.
3. How to make plastic bottles the least likely to be poured?
Answer: Bottles filled with water or sand are the hardest to pour.
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For more information about the "Shape and Structure to Build a Tall Tower" PPT courseware, please click the Shape and Structure ppt to build a tall tower ppt tag.
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