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Authoritative PPT Summary
"Building Towers" Shape and Structure PPT Courseware 3
Conjectures and assumptions:
1. What forces will act on these tall iron towers?
Its own weight, other pressures, and the force of wind coming from the side
2. Observe their shape and structure, what characteristics make the tower difficult to fall down easily, and write down our conjectures.
Activity 1: The secret of objects not falling easily
What is the easiest way to pour plastic bottles?
bottle mouth downwards
How to make plastic bottles easy to pour?
bottle mouth upward
How to store plastic bottles that are most difficult to pour?
With the mouth of the bottle facing upward, put some sand into the bottle
What methods can we use to make objects less likely to fall?
The top is small and the bottom is big, the top is light and the bottom is heavy. That is: make the bottom of the object larger and heavier, and the top smaller and lighter, so that the object will not fall easily.
Activity 2: Build a “tall tower” that is not easy to collapse
Use the materials given on page 39 of the textbook to make a "tall tower" and compare which group can make a taller and more stable tower.
Thinking: Let’s look at the characteristics of these materials. What methods can be used to make the “tower” we build less likely to fall?
Talk about: What measures have we taken to make the "tower" less likely to fall?
Do it: Try fanning yourself. How is the wind resistance of the "tower" we built?
Extracurricular homework:
1. Investigate what kinds of iron towers there are in Zhucheng and what are they used for? What principles does it apply to what we learned?
2. Design an iron tower. Draw a design or make a model out of some simple materials.
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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.
"Building Towers" Shape and Structure PPT Teaching Courseware:
"Building Tall Towers" Shape and Structure PPT Teaching Courseware Part One: Introduction of New Lessons We can use frame structures to build very tall towers with less steel. Do you know what towers there are in our hometown and what famous towers are there in the world? ... ... ... establish..
"Building Towers" Shape and Structure PPT Download:
"Building Towers" Shape and Structure PPT Download Part One: Situation Introduction These towers are strong and do not deform, and they stand upright and do not fall down. Eiffel Tower, drilling iron frame, high-voltage transmission line tower. In terms of shape and structure, what characteristics make them difficult to collapse? ....
"Building Towers" Shape and Structure PPT:
"Building a Tall Tower" Shape and Structure PPT Part One Content: The Secret of Objects That Are Not Easy to Fall Let's do experiments with empty plastic bottles and sand to study the secret of objects that are not easy to fall! How to put plastic bottles in the easiest way to pour them? How to make plastic bottles easy to pour? How to make it, plastic bottles..