Bridges and Tinkercad

What type of bridge is this?

• Beam bridge

• Arch bridge

• Suspension bridge

• Truss bridge

What type of bridge is this?

• Bean bridge

• Beam bridge

• Arch bridge

• Truss bridge

Which bridge is made up of a bunch of triangles?

• Beam bridge

• Arch bridge

• Suspension brige

• Truss bridge

What type of bridge is this?

• Beam bridge

• Arch bridge

• Suspention bridge

• Truss bridge

Why do arches help create strong bridges?

• They spread the force down and outward表面.

• The middle pushes down when force is applied leaving the sides strong.

• It makes your bridge look more beautiful.

Bending is a combination of which two forces?

• tension and compression

• tension and gravity

• gravity and compression

The force that acts to expand or lengthen the object it is acting upon is called:

• gravity

• tension

• compression

What are bridges designed to do?

• support other bridges

• go high up in the air

• look beautiful

• carry moveable things from one side to another

Which one is made of steel?

• shoes

• cables

• pencil

• window

Which one is NOT the reason that engineers make truss bridges?

• Not expensive to build

• strong

• provides support over a very long span跨度

• stable