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Structures

Science Vocabulary (11.1-11.4)

TermDefinition
stability the ability of a structure to remain in or return to a stable, balanced position when forces act on it
centre of gravity the point around which an object’s mass is equally balanced in all directions; the point where the mass seems to be concentrated
beam a horizontal structure designed to support a load
I-beam a beam that is in the shape of the letter “I” when seen from the end
corrugation multiple folds in a material that provide additional strength
rebar steel reinforcing bars used to strengthen concrete by allowing it to resist both tension and compression.
cantilever a beam supported at only one end
truss a network of beams arranged in triangles
arch a curved structure used to span a space while supporting a load
dome a shell structure that looks like the top half of a sphere
Created by: Ms. Amy
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