Caleb's

Questions

1. Urban Sprawl Article– (write/type the 5 key things from the flashcards here)

11.How do we handle urban sprawl in Georgia? Effective remedies against the environmental problems created by sprawl will require growth management strategies that protect the quality of Georgia's water and air and the high quality of life enjoyed by its citizens.

2.2 What is urban sprawl, and how does it occur? Urban sprawl is most simply defined as "the spreading out of a city and its suburbs over more and more rural land at the periphery". In other words, sprawl happens when people abandon cities in favor of the suburbs, vast rural areas once home to wildlife and farms.

3.What places stress on Georgia's rivers? Increasing withdrawals of water for public supply, industrial uses, power production, and irrigation are placing stress on Georgia's rivers and making it more difficult to meet in-stream flow needs for such uses as water-quality protection, recreation, and fish and wildlife habitat.

.4. What are the 10 counties that make up Georgia? Cherokee, Clayton, Cobb, DeKalb, Douglas, Fayette, Fulton, Gwinnett, Henry, and Rockdale.

55. How is a heat island effect created? Deforestation and loss of vegetation, coupled with increased pavement and rooftops, creates a "_heat island" effect (temperatures can be up to twelve degrees higher in heavily paved areas of Atlanta) and contributes to the region's air pollution problems as well.

Chapter 7 - ( write/type 5 key things from the flashcards here)

1.What raw materials would be necessary for a potato chip production system? What kinds of waste would the system generate? Raw materials: potatoes, plants for making oil, steel for the machines, trees for wood for the building, and so on. Wastes: air pollution, paper wastes, used cooking oil, extra bags, and so on.

2.What is a system? A system is a collection of objects that work together to achieve a common goal. A system includes inputs, outputs, processes, feedback, and goals.

3.What is the purpose of feedback? Feedback provides information that the system then uses to make adjustments.

4.What are processes? Processes describe the parts of the system that actually transform the inputs into the desired products.

5.What does the life cycle analysis of an automobile looks like? Inputs: Production: steel, tires, glass, workers, factories, money, upholstery, energy to run the factory; Use: gasoline, motor oil, knowledge, highways, roads; Outputs: cars, industrial wastes such as leftover material, air pollution, millions of cars on the road, junk cars in wrecking yards, partially recycled and partially in landfills.

b Chapter 12 - ( write/type 3 key things from the flashcards here)

y 1.What limited the height of the structures in the Middle Ages? The structures were supported by thick stone walls. As the structures got taller, the lower walls had to be thicker to support the dead load above them. At a certain point, the walls would get too thick for there to be any dwelling place.

t 2.What manufacturing breakthrough led to the development of taller structures in the 1800s? New manufacturing processes for making long steels and iron beams.

d 3.What is a truss and how does it minimize the effects of a shearing force? A truss is a triangular arrangement of structural members. A truss prevents the joints of a structure from sliding apart.

Chapter 13 – (write 1 key fact)

1. You are a structural engineer working for a design firm, and you have been given the task of designing a scaffold that can support a load of 300 pounds. The scaffold must have a safety factor of 2. How many pounds must your design be able to support? 600lb

Chapter 14 (write/type 5 key things from the flashcards here)

f 1.What is the elastic limit? The elastic limit is the point at which a material will no longer return to its original shape due to stress.

y 2. What are the major factors that engineers consider when selecting materials for a job? The unique climate and terrain that the structure will be built on as well as the characteristics of the materials themselves, such as their ability to withstand compression, tension, torsion, or shearing, and their resistance to corrosion. Engineers must also consider cost and the length of time the structure is expected to last.

tt 3. As stresses increases, a __________ is eventually reached when the structure breaks or fractures.failure point

e 4.At stresses above the elastic limit, a material experiences ______________ - when the change is permanent. Plastic deformation

f 5.What is strain? Strain is a measure of how much a material deforms due to stress as compared to its original size.