the two tall structures on a bridge are called....
Towers
a curved bridge made up of voussoirs

arch bridge
the middle piece of an arch bridge that locks the other pieces together:
keystone
keyblock
kibblesandbits

keystone

a pulling force is called....

Tension
If you reach forward too far to grab something, your body will automatically bring your leg backwards to keep you from tipping forward. Your leg does the counterbalancing. It is called a:
Counterweight
Countertop
Counterproductive
Counter balance
Counterweight
+500
in what large US city is this bridge?

NEW YORK CITY!
name: Brooklyn Bridge
What type of bridge is this, found in Bronx, New York:
Cable Stayed
Suspension
Arch![]()
Cable Stayed
the part of a bridge where people, cars, or animals can travel

Roadway
or Deck
the simplest type of bridge made up of one long structure

beam bridge
the length of a bridge is also called the ....
span
longitude
base

span
a pushing force is called...

compression
This useful program/app allows you to travel to many places on the earth and zoom in close at buildings and other structures.
Google Earth
Google Doc
Google Classroom
Google Earthquake
Google Earth
This type of bridge carried water from a source to a city. Romans developed it.
1) Aquaduck
2) Aqueduct
3) Aguaduck
4) Awkwardduck
2) Aqueduct
Found in Manhattan, New York, what is this type of bridge? 
Suspension
the structures that hold up the roadway.
hint: they are in tension

suspension cables
a bridge that uses cables to hold up the road

suspension bridge
a series of triangles make up a .....

truss
How does an arch bridge distribute a load (weight)?
They divide weight in half: to the right and to the left
They divide weight in half: top and bottom are equal
They make the bridge look symmetrical
Arch bridges divide weight in half: to the right and to the left
If the same weight pressed down on each spaghetti bridge, which would bend/bow downwards first: The 4", 6", or 8"?

The 8"
The longer the beam, the weaker the bridge.
A bridge that allows boats to pass by opening the middle span

Draw or lift bridge
Made of triangle supports, what is this type of bridge?

TRUSS
abutments are the two support structures on the ends of the bridge, TRUE OR FALSE
TRUE
A bridge that rotates to let ships or boats pass through:
swing bridge
spinaround bridge
suspension bridge

swing bridge
A wider base and skinnier top makes a tower:
lean over
more stable/sturdy
less sturdy/stable
top heavy
more stable/sturdy
which part of the structure is in tension?
which part is in compression?

rubber bands = tension
straw = compression
This type of bridge has a roof and walls around it to prevent the wooden supports from rotting.
COVERED BRIDGE
a bridge made up of triangles

truss bridge
Where is this lift/draw bridge found?
London, England
+500
The ground on which the bridge is built is called...
Foundation
Fountain
Bottom
Suspension
Foundation
This type of bridge resembles a musical harp. The cables are attached to the tower at different points.
Cable-stayed
Suspension
Beam
Truss
Cable-stayed
A keystone is the most important piece of this shape of bridge:

ARCH
ARK
ARF
ARM
A butterfly and a starfish look the same on both sides of an imaginary line drawn down their middle called a: Line of imagination
Line of Latitude
Line of Symmetry
Symmetry Points
Line of Symmetry
Which bridge would support more weight, beam or suspension?

The suspension bridge.
The suspension cables (strings in this pic) allow the bridge to support a greater load (more weight) as they share the load.
+500
A bridge where all the cables meet at one point on the tower:
Beam
Cable Stayed
Truss
Arch
cable-stayed bridge
Where is this suspension bridge located? ![]()
San Francisco, California