“S” words
Any object that provides support
What is STRUCTURE
A push or a pull that causes an object to change its movement or shape
What is FORCE
A moving or changing force acting on an object
What is DYNAMIC LOAD or LIVE LOAD
A structure with a solid outer surface and a hollow inner area
What is SHELL
A force applied to an object by something else
What is EXTERNAL FORCE
A permanent force acting on a structure
What is DEAD LOAD or STATIC LOAD
A hockey puck is this type of structure...
What is MASS
A force that acts to push parts in opposite directions (like cutting paper)
What is SHEAR
An imaginary point in an object where the downward force of gravity acts
What is CENTRE OF GRAVITY
A flat bridge that is supported at each end
What is a BEAM BRIDGE
This type of joint is allows the structure to move at certain points.
What is a MOBILE JOINT
The non moving weight of a structure
What is STATIC LOAD or DEAD LOAD
The forming of material into wave-like ridges or folds (done with cardboard)
What is CORRUGATION
This type of structure would not be able to support a load without its ‘keystone’ . The force of the load is spread out across the bridge to the foundation
What is the ARCH BRIDGE
The term that means how pretty something is
To withstand the forces acting on them, structures need (2 answers)
What is STRENGTH and STIFFNESS
Plywood is stronger than normal wood because it is _________.
What is LAMINATED
A force that acts to squeeze an object or to push parts together
What is COMPRESSION
Two different types of beams, one has the shape of an I, the other a hollow rectangle
What is an I BEAM or BOX BEAM
The fixed joint needed to join 2 pieces of wood
What is FASTENERS (nails, screws) or What is INTERLOCKING SHAPES (dovetail joints)