Bridges

What is torsion

• a squeezing force

• A twisting force

• a sliding force

• a pulling force

What force helps an arch bridge support its live and dead loads?

• shear

• tension

• compression

• torsion

Tags

NGSS.MS-PS2-1

The part of the bridge for traffic.

• deck

• foundation

• cables

• towers

The distance between bridge supports.

• towers

• span

• cables

• deck

What force or forces help a suspension bridge support both its live and dead loads?

• shear

• compression only

• tension only

• compression and tension

What kind of structure surrounds the arch for extra support?

• buttresses

• keystone

• cables

• towers

What holds the arch together?

• buttresses

• keystones

• cables

• towers

Bridge A collapsed because there was too much traffic on the bridge. The bridge collapsed due because

• it could not support its dead load

• it could not support its live & dead loads

• it could not support its live load

• the bridge was hit by wind

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-2

Bridge B collapsed under its own weight. What cause the collapse?

• the live load

• the environmental load

• too much traffic on the bridge

• the dead load

Tags

NGSS.MS-PS2-2

What is tension?

• a sliding force

• a twisting force

• a squeezing force

• a pulling force