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Grade 8 TECHNOLOGY (Term 1)

Terms in this set (20)

Compressive forces are also known as:
pushing forces
TRUE or FALSE
A design brief must include specifications and constraints.
true
Tensile forces are also known as:
pulling forces
TRUE or FALSE
A structure is a collection of parts that are joined together to support a load.
true
A fixed relationship between a real object and a drawing
scale
TRUE or FALSE
Rafters must help support the weight of the roof and can never withstand compressive forces.
false
A moving load is known as a:
dynamic load
TRUE or FALSE
Shear forces act in a way that pulls parts of a single beam in two opposite directions at the same time.
true
The state of being steady and unlikely to change, fall or move is
stability
TRUE or FALSE
A torsion force twists a beam in a clockwise direction.
true
Structures are further divided into these three other groups:
Frame, shell and mass structure
A / an _____________ is a beam that is anchored at only one end.
Cantilever
Large triangles with smaller triangles inside a roof are called:
roof trusses
TRUE or FALSE
An Arch bridge is no different to a Suspension bridge.
false
The upper half of the beam feels a weight acting down upon it. It is under a ________________.
Compressive force
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