Technology 2ESO: Structures | Baamboozle - Baamboozle

What are sections?

Bars with different cross-sections; e.g. L/T/U/H-shaped, square, triangular, round, etc.

How do you call a method of making weak structures stronger by giving them a triangular shape?

trussing

What is a brace?

A part that is positioned diagonally between two bars to form a right angle

In which structures are the stay cables often used?

suspension bridges

How do you call a horizontal architectural element that is used to support the weight of the floors and the ceilings?

Grider, beam

How do you call a vertical architectural element that is used to support the weight of a structure?

column, pillar

Name at least 2 ways to support the stability of a structure

By widening the base; locating the center of gravity at a lower point; making a good foundation; using stay cables

What is a center of gravity?

A point where the weight of the object is considered to be concentrated

What is a stable equilibrium?

It is when a body doesn't move when a force is applied to it

What is an unstable equilibrium?

When a force is applied to a body in an unstable equilibrium, it causes body to move

Give an example of a plastic object

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Give an example of an elastic object

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Give an example of a rigid object

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If something is plastic, what does it mean?

It gets deformed and stays like this

If something elastic, what does it mean?

It can deform but then returns to its original shape

If something is rigid, what does it mean?

It doesn't deform

This stress is caused by by two equal forces that act close to each other and are applied in two opposite directions. This kind of stress tends to cut the material if it cannot twist or bend

shear

This type of stress is caused by the forces that make a body twist

torsion

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

Give an example of bending

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Give an example of shear

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Give an example of torsion

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Give an example of tension / traction

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Give an example of compression

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This is a type of a stress that is caused by the forces that tend to stretch a body

tension

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

Name at least 3 of the 5 types stresses that a body may have to support?

Compression, tension or traction, bending, torsion, and shear

What is a strength of a material?

Its ability to withstand external forces without breaking

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 an influence that can deform a body or change its movement?

force

Suspension bridges, tents and marquees are the examples of what kind of structures?

suspended structures

A structure of the building is an example of what kind of structure?

frame structure

Cranes and electricity pylons are the examples of what kind of structures?

truss structures

Walls and dams are the examples of what kind of structures?

mass structures

How do you call the structures that are held in place by cables and suspenders attached to sturdy supports?

suspended structures

How do you call the structures that are composed of bars that from triangles and are lightweight and sturdy?

truss 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 types of structures that are solid, heavy and very sturdy?

mass structures

What is the collection of elements arranged in an optimum way to support a body or an object?

structure