Structures
Forces
Loads and Forces
Bridges
Strengthening/Evaluating Structures
100
this structure is made of solid pieces and strong material
What is a solid?
100
these forces come from the outside of the structure
What is external forces?
100

this is the effect of gravity and a structure itself on a structure

What is a static load?

100
this bridge is good for short distances as there is no centre support
What is a beam bridge?
100

the resistance an object encounters when moving over another one

What is friction?

200
The Eiffel Tower in Paris, France is an example of this structure
What is a frame?
200
this external force acts on all structures all the time
What is gravity?
200
this is a force that moves or changes while acting on the structure
What is a dynamic load?
200
this type of bridge uses two tall towers and cables
What is a suspension bridge?
200

In the human body knees, elbows, ankles, wrists are all examples of what kind of joints?

moveable joints

300

This structure is molded into a bowl shape that provides strength and stability.

What is a shell?

300
this force is caused by one part of a structure acting on other parts of a structure
What is an internal force?
300

This is a force that pushes in opposite directions

What is shear?

300
this type of bridge uses a semi-circular structure
What is an arch bridge?
300

These joints are rigid to prevent movement. Like welding, cementing, and gluing.

Fixed Joints

400
this is any push or pull
What is a force?
400
this is a force that pulls
What is tension?
400

when two forces act on a structure at once

What is complementary forces?

400
A Truss bridge is designed to have what kind of shapes to keep it strong?

Triangles

400

Nails, Screws, Rivets, Tacks and Staples are joints that rely on?

Friction

500
an igloo is an example of this type of structure
What is a shell?
500
this is a weight that presses down
What is compression?
500
this force allows scissors to work
What is shear?
500

The famous Golden Gate Bridge in San Francisco is what kind of bridge?

Suspension

500

a door hinge is an example of this

What is a movable joint?

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