Operation Build a Bridge and Get Over It
Your mission, which you must accept, is to design and construct a bridge for Powder Springs that will have a high strength-to-weight ratio. As always should any member of your IMF force be caught, the secretary will disavow any knowledge of your actions. This tape will self-destruct in five seconds. Good luck class.
compression: The squeezing or pushing (force) on a material, which tends to make it shorter.
dead load: The weight of a structure by itself when fully constructed.
ratio: A comparison of the size of one number to the size of another number.
shear: The sliding of material that causes layers to move in opposite directions.
tension: The stretching or pulling (force) on a material, which tends to make it longer.
truss: A structural frame based on the rigidity of the triangle shape and composed of straight members. Functions as a beam to support structures such as bridges and roofs.
S/SCIENCE: Research several engineers that construct bridges
T/Technology: Design your bridge using “Bridge Building Design” program
E/Engineer: Construct (build) your bridge using toothpicks
M/Math: Calculate the strength-to-weight ratio of their final designs.