Lesson 5.5: Bridging the Gap

What is trial and error?

The process where one learns by making mistakes, fixing them, and try again.

What is concentrated?

Located or placed in a small area.

What is a dead load?

The weight of a material used to construct something, like a building or bridge.

What is a live load?

The temporary weight the structure supports, for a bridge, live load might be cars, and in a skyscraper, it could be humans.

What are the 3 major types of bridges?

A beam bridge, arch bridge, and suspension bridge.

Describe a beam bridge:

A horizontal surface supported by a column on either end, and it’s weaker than other bridges and spans the least distance.

Describe an arch bridge:

Flat on top and supported below by material in the shape of a semi circle.

Describe a suspension bridge:

Can span long distances, the road hangs from steel cables draped across towers. The cables are anchored in concrete t the end of the bridges.