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Fettuccini Support System
Objectives
1)To design a structure capable
of holding a textbook using the materials supplied.
2)To demonstrate that the weight
of a textbook offset by the normal force exerted on the book by the structure.
3)To estimate the normal force
exerted by the structure on the textbook the instant before structural failure
Materials
- 20 pieces of dry fettuccini
- one meter of masking tape
- meter stick
- piece of paper
- lightweight book
- medium weight book
- Heavy textbooks
Design Requirements
- The height of the structure shall be at least 5 cm,
supporting the book 5 cm above the table. All parts of the book should be
supported at least 5 cm above the table.
- The structure shall use all or part of the 20 pieces
of fettuccini and all or part of the 1 m of masking tape. No additional tape
or pasta may be used.
- Tape must be used to secure the support structure. The
structure must be one unit that can be picked up and placed on the testing
area. Overlapping, non-taped pieces of fettuccini are not allowed. A "log
cabin" type structure consisting of overlapping, taped pieces of fettuccini
is not allowed.
- The structure must have a minimum of three points of
support.
Procedure
- Design and build a support structure according to the
design requirements
- Measure and record the mass of the structure. Measure
and record the masses of the paper, the lightweight book, the medium weight
book, and one heavy textbook.
- Measure and record the dimensions of the structure.
Note minimum height.
- The students will test the integrity of the pasta
structure by placing the piece of paper on the structure first. The paper is
removed, and the lightweight book is placed on the structure. The
lightweight book is removed, and the medium weight book is placed on the
structure. Last, the medium weight book is removed and the heavy weight book
is placed on the structure. To be successful, the structure must hold the
item for ten seconds.
- Students who successfully hold the heavy weight book
for the required amount of time will be allowed to compete in the contest.
- Continue loading the structure repeatedly with the
heavy weight books until structural failure occurs.
Scoring Rubric for "Bridge"
Item Held
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Piece
of Paper
10 points |
Lightweight Book
20 points |
Medium
Weight Book
30 points |
Heavy
Weight Book
40 points |
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