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About this document
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- 56 pages
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- $45 one-time, yours to keep
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- Subject
- Engineering, Physics
This document is a reference kit for the International Young Physicists’ Tournament. It describes Problem No. 1, which involves building a bridge from a single A4 sheet of paper and optimizing its strength. It includes background reading and references for further study.
What's inside
- Problem No. 1 description: building a paper bridge
- Background reading on folded plates and shells
- References for further study
- Problem No. 2 description: elastic space
- Background reading on gravity and elastic membranes
- Problem No. 3 description: bouncing ball with liquid
Who it is for: Students preparing for the International Young Physicists' Tournament. (Postgraduate)
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Summary
Paper bridges are a way to study engineering and physics. Students learn how to build and test a bridge from a single sheet of paper. The guide gives background reading and explains how to describe and optimise the bridge's strength.
Problem statement
The task is to build a bridge from a single A4 sheet of paper. The bridge must span a gap of 280 mm. Students must introduce parameters to describe the bridge's strength and optimise them.
Background reading
The guide lists websites and papers on folded plates, shell structures and paper bridges. It also covers stress, plate theory and other relevant topics. There are links to videos and articles on the physics of fluids and solitons.
Other problems
The guide also mentions other problems. One is about coloured plastic objects shining in bright light. Another is about a sound heard when light hits a soot-coated jar. A third is about a candle covered by a beaker.
More background reading
The guide lists more websites and papers. Topics include ball-bearing motors, Feynman's reverse sprinkler and tea bag rockets. There are links to videos and articles on these subjects.
Key terms
- folded plates
- Structures made by folding flat sheets of material.
- shell structures
- Structures that have a curved or doubly curved surface.
- stress
- The force applied to a material, divided by the area over which it is applied.
- plate theory
- The mathematical description of the behaviour of thin plates under load.
- solitons
- Self-reinforcing solitary waves that maintain their shape while moving at constant speed.
- coefficient of restitution
- The ratio of the final to initial velocity between two objects after they collide.
Questions this document helps with
- How do you fold a paper sheet to make it stronger?
- What parameters can describe a paper bridge's strength?
- How do you optimise a paper bridge's strength?
Summary written with AI from the document's text.
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