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Deflection – The change in direction or movement from original location.

Example: With the applied load, the bridge experienced a deflection of 1 centimeter. With the applied load, the bridge bent by 1 centimeter.

Efficiency – The ability to make a desired product with the least expense or waste.

Hint: Use the least pieces to carry the most weight.



Load – The weight that is carried

Example: A bridge carries the load. A bridge carries the weight.

Span – The distance between piers, towers or abutments.

Example: A bridge spans 300-ft. A bridge crosses over a 300-ft gap.

Hint: Bridge needs to be longer than the span.