Bridges and Forces UPDATED ACTUAL Questions and CORRECT Answers

Bridges and Forces UPDATED ACTUAL Questions
and CORRECT Answers



Practice questions for this set


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The arch is squeezed together, and this squeezing force is carried
outward along the curve to the supports at each end. The
supports, called abutments, push back on the arch and prevent
the ends of the arch from spreading apart.



Choose an answer



1 Arch Bridge - Force 2 The Beam Bridge



3 Shear - Example 4 Truss Bridge - Force

, The Beam Bridge - Consists of a horizontal beam supported at each
end by piers.
- The weight of the beam pushes straight down on
the piers.
- The farther apart its piers, the weaker the beam
becomes.
- This is why they rarely span more than 250 feet.




Beam Bridge - Force When something pushes down on the beam, the
beam bends. Its top edge is pushed together, and
its bottom edge is pulled apart.




The Arch Bridge - Has great natural strength.
- Thousands of years ago, Romans built arches out
of stone. - Today, most arches are made of steel or
concrete.
- They can span up to 800 feet.