A _________________ bridge uses shapes such as triangles and trapezoids to give it strength.
A ___________________ bridge has a curved bottom and is usually supported at the ends. Covers small distances usually over a small stream or uneven surface.
A _______________ bridge is meant to cover great distances. Usually very expensive to make but are very appealing. (Example: golden gate bridge)
A _____________ bridge uses cables to distribute the tension load to usually a central or pair of vertical beams.
A _________________ bridge is a bridge built using structures that project horizontally into space, supported on only one end.
__________________ bridges, also known as stringer bridges, are the simplest structural forms for bridge spans supported by an abutment or pier at each end.
A force caused by the state of being stretched.
Force caused by the act of being squeezed together.
The weight of the bridge that must be supported by the structure of the bridge.
The steps that engineers use to design something to solve a problem
The outermost end supports on a bridge, which carry the load from the deck
The distance a bridge extends between two supports.
The vertical structure in a suspension bridge or cable staryed bridge from which cables are hung
A strain produced when material is twisted
A structure built over an obstacle, such as a river or a road.
Supported roadway on a bridge.
A structural support; to strengthen and stiffen a structure to resist loads.
An engineer who plans, designs, and supervises the construction of facilities essential to modern life. (examples: bridges, buildings, roads, etc..)
A mixture of water, sand, small stones, and a gray powder called cement.
a weapon used to firing rocks over walls.
to rub together and slow down.
the point on which a lever rests or turns.
energy that is moving
a bar used to lift an object.
something that is carried or applied
energy that is stored
Twisted rope used in catapults to store tension.
the tightness or stiffness of a rope.
to push something suddenly or hard.
the path to a target.
to cause a reaction.
a high powered crossbow that hurled missiles long distances.
worked by dropping a great weight that was attached to the short end of a long lever-arm.
a weight that balances another weight.
A device used to give a mechanical advantage.
the property of a body that causes it to have weight in a gravitational field.
the influence that produces a change.
a turning or twisting force.
the amount of energy transferred by a force.
is the rate at which work is performed.
A measure of the rate of doing work.
An action that twists a material
The weight of items on a structure
A force that stretches material apart
A force that squeezes a material
The strongest and most rigid shape
The weight of the structure itself
A force that is a mixture of tension and compression
A force that makes materials slide past one another
To strengthen a rectangle, what is used?
To strengthen an arch bridge, what is used?
Which type of bridge can span the longest distances?
Which bridge is the most susceptible to the bending force?
Cable bridges are made mostly of what material?
Which bridge uses a triangular design to improve strength?
An arch bridge's shape is held together with a ________________
what is a pulling or stretching force
the length of a bridge between two piers
the "column" of a bridge
a person who applies her/his understanding of science and mathematics to creating things for the benefit of others
the "top" of the bridge on which we drive or walk
a pushing force that tends to shorten objects
a long, rigid, vertical (upright) support member of a structure
a bridge that consists of beams supported by columns (piers, towers)
a long, rigid, horizontal support member of a structure
a bridge that forms the shape of an arch
a mass receiving the arch, beam, truss, at each end of a bridge.
A bridge in which the deck is hung from cables