Forces acting on the bridges

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Across
  1. 2. – The shape that helps an arch bridge stay strong.
  2. 6. – The strongest type of bridge that can span very long distances.
  3. 7. – The simplest type of bridge made of a flat beam.
Down
  1. 1. – The twisting force that can act on a bridge in strong winds.
  2. 3. – The pulling force that stretches materials.
  3. 4. – The pushing force that squeezes materials.
  4. 5. – A bridge made with triangles to spread weight evenly.