Unit 4 Structures And Forces Flashcards
________ are things made from one or more parts that serve a definite purpose or function
Structures
_________ structures are not made by people
Natural
________ joints are used in a structure to allow joined materials to move easily
Mobile
A persons’s ___________ is really a measure of the gravitational force between the person and earth
Weight
_________ forces can make the soil under a heavy building shift sideways, causing the building to lean
Shear
A __________ is the weight that I structure must support
Load
________ structures provide enclosed open space and use very little building material
She’ll
___________ is another word for “looking good” in structure design
Aesthetics
____________ material refers to any building material that is made up from two or more other materials
Composite
Plywood is stronger than normal would because it is _____________
Laminated
____________ is the unit of measurement for weight
Newton
Spider silk has a great deal of _________ strength
Tensile
____________card board was designed to provide less weight without compromising strength
Corrugated
__________ provide a stable foundation for bridges because they transfer the weight of the structure to the bedrock
Pilings
Is ordered to spread out the weight of a structure, foundation walls are set on concrete _____________.
Footing
Structures can be classified as _____________ or ______________ according to their origin
Natural and manufactured
____________ means less likely to tip
Stable
__________ ____________ is a weakening of metal due to stress, resulting in an accumulation of small cracks
Metal fatigue
______________ _______________ is the tendency of an object that is spinning on its axis and move in a predictable manner
Spin stabilizer
A ____________ is a circular device with a heavy outer rim that spins at a very fast rate
Gyroscope
