Malinche

Winter Break Project: The Physics of Bridges

Activity 1: Types of Bridges (5 pts)
Directions: In this activity you will research bridge types through pbs interactive web site. Open the following webpage: http://www.pbs.org/wgbh/nova/tech/build-bridge-p3.html. Learn more about each type of bridge by clicking the bridge type. Take notes and make observations to complete the charts foreach bridge below.

Arch Bridge
|Information on bridge type |Observations through the activity |
|(Positives and Negatives) | |
||The preassuregoes sideways and expands outward and to the sides of the arch|
|arch bridges have great natural strength. Instead of pushing straight down,| |
|the weight of an arch bridge is carried outward along the curve of the arch||
|to the supports at each end. | |
|the arch is under compression. For this reason, arch bridges must be made | |
|of materials that are strong under compression.| |
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Beam Bridge
|Information on bridge type|Observations through the activity |
|(Positives and Negatives) | |
| |When you press down in the sponge the top notch squeezes together while the||Inexpensive |bottom notch spreads apart. |
|The farther apart its supports, the weaker a beam bridge gets | |
| |...