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Bridges
Term | Definition |
---|---|
Force | A push or a pull |
Newton | A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second |
Net Force | The combination of all forces acting on an object |
Balanced Force | Equal forces acting on an object in opposite directions |
Unbalanced Force | Forces that produce a nonzero net force, which changes an object's motion |
Span | Span is the distance between two supports of a structure |
Obstacles | A thing that prevents progress |
Aesthetics | A pleasing appearance |
Deck | The roadway of a bridge |
Pier | A vertical supporting structure |
Load | Forces that act on a structure |
Tension Force | Pulling force applied to an object that can make an object stretch |
Compression Force | A squeezing force applied to an object that can make an object shrink |
Shear Force | A force that bends or tears a material by pushing parts of it in opposite directions |
Beam Bridge | A horizontal surface supported by vertical posts (piers) |
Truss Bridge | A type of beam bridge, reinforced by a framework that forms a triangular shape. |
Suspension Bridge | A bridge held up by cables anchored at each end |
Arch | A curved symmetrical structure |
Abutment | A structure built to support the pressure of an arch or span |
Gravity | A force of attraction between objects that is due to their masses |
Weight | A measure of the gravitational force exerted on an object. |
Function | An activity or purpose intended for a person or thing |