Structures and Forces

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Across
  1. 4. a force created without touching another object
  2. 5. a bridge that consists of a horizontal beam supported by piers
  3. 6. a force that pushes in opposite directions
  4. 8. a force created when two objects touch
  5. 10. a force in a twisting motion
  6. 11. a force that squeezes or presses something together
Down
  1. 1. this bridge uses cables suspended from towers to support the load
  2. 2. a force that can change when acting on a structure
  3. 3. a stretching force that expands or lengthens
  4. 6. a load that does not change
  5. 7. this bridge uses a semicircular shape to support the load
  6. 9. this bridge has a brace that is made of triangles to provide extra support