Types of Structures Structures Describing Mass and Forces.
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Transcript of Types of Structures Structures Describing Mass and Forces.
Types of Structures
StructuresDescribing
Mass and Forces
Forces, Loads and Stresses
How Structures Fail
Designing With Forces
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Types ofStructures
A snowflake is an example of this.
What is a structure?
This is whatpushes and pulls are.
What are forces?
This type of structure
is man-made.
What is manufactured?
This is the purposeof a structure.
What is its function?
Mountains are examples of this type of structure.
What is a mass or natural structure?
This term refersto how “good”
something looks.
What isaesthetics?
Extra strengthprovides this.
What is themargin of safety?
Something made frommore than one type
of material.
What are compositematerials?
This is one of two types of joints.
What are mobileor rigid joints?
Nails, staples and boltsare examples of these.
What are fasteners?
Mass.
What is the amountof matter in an
object?
This is the SI unitof force.
What is a newton?
This device isused to measure
weight.
What is aspring scale?
This shows thestrength and direction of
a force.
What is aforce diagram.
Weight is measured
in this.
What is newtons?
Deformation
What is a changeto the shape or size
of a structure?
This is apermanent
load.
What is a dead-load?
This is a crushing
force.
What is compression?
A twisting force is called this.
What is torsion?
Scissors usethis kindof force.
What is shear force?
A fulcrum is neededin order for this
to work.
What isa lever?
Car bumpers aredesigned to do this.
What is buckle?
This is done to fibres to make them stronger.
What is twist?
Metal Fatigue.
What happenswhen metals arebent or twistedover and over
again?
These can causeinternal forces
within a structure.
What areexternal forces?
This shape is used inthe structure of
roofs.
What istriangle?
The load of the roofis shared through
these.
What are vertical supporting posts
or studs?
This has akeystone
in it.
What is an arch?
This supportis found incardboard.
What iscorrugation?
These use less material thansolid beams.
What arebox, I,T, or L
beams?
Describing Structures
Mass AndForces
HowStructures Fail
Forces, Loads, andStresses
Designing With Forces
Stable Structures
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These structuresare not made
by people.
What arenatural structures?
These structures usea thin, carefully shapedouter layer for strength.
What are domes?
A turtle has this type of structure.
What is ashell?
Airplanes arethis type ofstructure.
What is aframe
structure?
This patternmakes brick
walls stronger.
What isa running bond?
TetraPaks areexamples of thistype of material.
What is a layered
material?
Cost, appearance, energy efficiency and
environmental impact.
What to considerwhen choosing
a material?
Dovetail joints arean example of this.
What areinterlocking
shapes?
Dowels are an exampleof this.
What arefasteners?
Sewing machinesdo this with their
thread.
What is tie?
1000 g = this manykilograms.
What is 1?
In Sciencemega means?
What is one million.
10 (9.8) equals this.
What is the amount of gravity
exerted per kg?
This never changes.
What is mass?
Used to measurenewtons.
What is aforce meter?
This is a changingforce acting on
a structure.
What is alive load?
This force allows aski to contact the snowto provide better grip.
What is the forceof bending?
This force createssmall cracks in the outside edge.
What is compression?
A rope undergoes thistype of force.
What is tension?
This is the shape ofthe foundation of
the CN tower.
What isY?
Boat motors havethese to preventdamage to the
engine.
What areShear pins?
Stringers and ribsare used for this.
What is reinforcing
large vessels?
Cables are made bydoing this.
What istwisting wires?
Dry spaghettisuffers from this
when twisted.
What is torsion?
Distance and size
What affectsgravitational force?
Structures startby buildingone of these.
What is a foundation?
In new planned subdivisions, builders need to study this inorder to prevent wall
cracks.
What is the ground?
This is built to spin10 000 times per minute.
What is a gyroscope?
To spread the load, a structuremay rest on this?
What arefootings?
This is found on a craneand is used to keep
the crane stable.
What is acounter-balance?
What is the last name of thearchitect who designed St. Mary’s
Catholic Church?
Who isCardinal?
