STRUCTURES EXPERIENCES
9
STRUCTURES 2º ESO A IES VIRGEN DE COVADONGA TECHNOLOGY DEPARTMENT
description
Two experiences with sections and structures made of cardboarad
Transcript of STRUCTURES EXPERIENCES
STRUCTURES
2º ESO A
IES VIRGEN DE COVADONGA
TECHNOLOGY DEPARTMENT
Two interesting and enjoyable experiences in Technology class:
•Which is the most RESISTANT SECTION?
•Which is the most RIGID structure?
Patricia, Adrián and Rita
Yerai, Pilar, Alex and Deva
Marina, Elías, Adrián and Raquel
Every team designs and builds three different cardboard sections:
SQUARE, ROUNDand TRIANGULAR sections.
SECTIONS
To check the resistance of each section:
• Place a book on the top.• If it resists, place more books
and...
How many books does each section take?
Which one is the most resistant?
LET’S SEE!
It supports more than
twenty books.AMAZING!!
GREAT!!!Deva, add one
more book, please!
Now, we know CIRCULAR
SECTION IS THE MOST
RESISTANT ONE
TRIANGULATIONEvery team makes two similar structures, with only one difference between them.
One structure is a triangulated structure while the other not.
Hold the structure from one vertex and add loads to the oppossite vertex.
Look at the pictures
What does it happen?
Finally, every team compares triangulated structures
It supports five pencil cases and one notebook
It supports three pencil cases and one notebook
Can you see the
difference?
Rigidity also depends on the vertex
from where you hold the
structure.
