Share Technology 2ESO: Structures
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What is the collection of elements arranged in an optimum way to support a body or an object?
structure
How do you call the types of structures that are solid, heavy and very sturdy?
Solid structures
How do you call the structures that are formed by columns and beams that act as supporting elements?
frame structures
How do you call the structures that are composed of bars that from triangles and are lightweight and sturdy?
Triangulated structures
How do you call the structures that are held in place by cables and suspenders attached to sturdy supports?
suspended structures
Walls and dams are the examples of what kind of structures?
mass structures
Cranes and electricity pylons are the examples of what kind of structures?
Triangulated structures
A structure of the building is an example of what kind of structure?
frame structure
Suspension bridges, tents and marquees are the examples of what kind of structures?
suspended structures
What is an influence that can deform a body or change its movement?
force
How do you call the physical demands that a body or object must withstand when one or more external forces are applied to it?
stresses
What is a strength of a material?
Its ability to withstand external forces without breaking
Name at least 3 of the 5 types stresses that a body may have to support?
Compression, tension or traction, bending, torsion, and shear
This is a type of a body stress that happens when the forces that act on it flatten it or reduce its length or thickness. It often happens when the structures need to support a weight
compression
This is a type of stress when the forces acting on an element make it curve or bend. It is often done by supporting the two ends and applying force in the center
bending
This type of stress is caused by the forces that make a body twist
torsion
