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- 1. Multiple ChoiceThree types of basic bridges are:Beam, Arch and SuspensionGolden Gate, Hudson and ChattahoochieBrooklyn, London and AmbassadorGeorge Washington, Mackinac and Seven Mile
- 2. Multiple Choice
A force that stretches or strains.
compression
friction
gravity
tension
- 3. Multiple Choice
Which type of bridge uses cables or ropes to hold it up?
suspension
arch
beam
- 4. Multiple Choice
Which type of bridge is held up by pillars or columns?
suspension
arch
beam
- 5. Multiple Choice
Center of gravity is usually located where
more weight is concentrated
less weight is concentrated
less mass is concentrated
more mass is concentrated
- 6. Multiple Choice
What is one way you might increase the stability of an object?
Lower the center of gravity
Raise the center of gravity
Increase the height of the object
Shorten the base of the object
- 7. Multiple Choice
Which is the best explanation of the term "weight"?
A large celestial body that revolves around a star.
Measurement of the force of Earth's gravity pulling you down.
A push or a pull.
Attraction between two objects that is proportional to the masses of the objects.
- 8. Multiple ChoiceAny object with mass has gravity.TrueSometimesFalseNever
- 9. Multiple ChoiceAn object that provides support is called ________.a structurea designthe basesupportive
- 10. Multiple ChoiceThe strongest structural shape is _________.rectangulararchedsquaretriangular
- 11. Multiple ChoiceThe function of a structure refers to ___________.its overall designits use or purposehow it is builtthe technological requirements
- 12. Multiple ChoiceThe caps of most mushrooms are hollow. What kind of structure would they be classified as?Shell structureSolid structureFrame structureWhole structure
- 13. Multiple ChoiceWhat makes igloos strong?They are natural structures.The igloo is a mass structure.The coldness makes everything stay in a solid state.The forces acting on the igloo are distributed equally in all directions.
- 14. Multiple ChoiceIn hot dry climates, homes are traditionally constructed of ___________.sun-baked brick, clay or mudbamboolong grasses woven togetherlong poles and canvas covers
- 15. Multiple ChoiceCharacteristics which are important in structures are ___________.function, design, aestheticsform, function, and designseasonal demands and functionsclimate, aesthetics and design
- 16. Multiple ChoiceTwo essential characteristics of effective structures are _____________.to stay warm and dryto remain stable and be mobileto provide protection and remain stableto provide protection and security
- 17. Multiple ChoiceThe term "load" refers to _______________.an external force on a structurea balanced arrangement of massthe necessary resistance of a structurea realistic design of a structure's forces
- 18. Multiple ChoiceA static load is also called a ____________.live loaddeal loadresistant loadmoving load
- 19. Multiple ChoiceThe weight of a structure and the non-moving load is supports is called ___________.a dynamic loada mass loada static loada load weight
- 20. Multiple ChoiceAn external force that moves or changes with time is known as _______.a static loada gravitational loadstructural variancea dynamic load
- 21. Multiple ChoiceThree internal forces that are classified by the direction in which they act are ____________.compression, tension, and exertiontension, compression, and shearshear, exertion, and stresscurvature, twisting, and bending
- 22. Multiple ChoiceA Christmas ornament hangs on the tree with a piece of string. To prevent the string from snapping, it must have __________.tensile strengthcompression strengthshear strengthtorsion strength
- 23. Multiple Choice
You see a crane carrying a load of supplies at a construction site. The rope holding the supplies to the crane is experiencing _____________.sheartensionbuckletorsion - 24. Multiple ChoiceYou see a crane carrying a load of supplies at a construction site. The rope holding the supplies to the crane is experiencing _____________.sheartensionbuckletorsion
- 25. Multiple ChoiceWeebles are impossible to tip over because they have _____________.a. a high center of gravityb. a low center of gravityc. no center of gravityd. no gravitational pull
- 26. Multiple ChoiceThe force that results when the surface of one object moves against the surface of another is referred to as _____________.resistancegravitystressfriction
- 27. Multiple ChoiceTh MOST common type of joining use in modern construction is _________.a. nails, screws, rivetsb. interlocking piecesc. frictional massd. staples and glue
- 28. Multiple ChoiceStructural safety is affected by environmental factors such as ___________.a. soil stability, material failure, overcrowdingb. climate, building components, terrainc. earthquakes, hurricanes, tornadosd. terrain, climatic conditions, earthquake risk
- 29. Multiple Choice
What is a force?
A push or a pull that causes an object to change its movement or shape.
A push or twist that causes an object to change its movement or
Something from Star Wars
A push that causes an object to change its movement or shape.
- 30. Multiple Choice
What is a static load?
A load that causes static electricity
A moving load
A non-moving load
- 31. Multiple Choice
What is a dynamic load?
A moving load
A non-moving load
A load that is always changing
- 32. Multiple Choice
Compression is a force that ________
squeezes material together
twists materials
pulls materials
rips materials
- 33. Multiple Choice
What type of force is torsion?
Twisting
Pushing
Ripping
Pulling
- 34. Multiple Choice
What type of force is shear?
Twisting
Pulling
Ripping
Pushing
- 35. Multiple Choice
Gravity is a force that is caused by the Earth pulling objects towards its centre?
True
False
- 36. Multiple Choice
Tension is a twisting force?
True
False
- 37. Multiple Choice
The size, direction and the location of where the force is applied are all factors that can effect a structure.
True
False
- 38. Multiple Choice
External forces such as extreme weather pose a constant threat to the structural reliability of structures.
True
False
- 39. Multiple Choice
How does a structure maintain structural reliability?
When the internal forces of a structure are greater than the external force
When the external forces of a structure are greater than the internal force
When the structure is there for you when you need it most.
- 40. Multiple Choice
The following are all examples of internal forces except...
Compression
Tornado
Tension
Shear
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