HW12006_1_KEY - Please print a copy, complete, and hand in...

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Please print a copy, complete, and hand in on April 5, 2006 at the beginning of class. Name /50 101: Modern Materials and Society, Spring, 2006 HW #1, Chapters 1-4 (pp 1-28) Due Wednesday, April 5, 2006 1. Please indicate whether each of the following is associated with A.) Scientific Method or B.) Engineering Design: (4) a) Utilizing low density alloys to reduce vehicle weight and fuel consumption ___ B ________ b) The search for a cure for childhood diabetes ____ A _______ c) Building the Hoover Dam in the 1930’s using 4.4 million yards of concrete ____ B _________ d) Understanding why the water-to-cement ratio affects the strength of concrete __ A _______ 2. Fill in the following diagram about the “Philosophy of Materials Science” (3): A. _ PROCESSING _____ B. MICROSTRUCTURE __________ C. PROPERTIES ___________ 3. The scientific method was demonstrated in class with a racquetball and a pop bottle. First, we made an OBSERVATION __________ that the pop bottle became softer when heated and then we formed a _ HYPOTHESIS __________ that that the polymer would harden when cooled. Finally, we conducted a(n) EXPERIMENT ________________ with a racquetball in liquid nitrogen. (3) 4. There are two ways in which new materials are found. The first involves COMBINING _________ elements in new ways and the second involves _ MODIFYING ____________ existing materials. (2) 5. High Strength Low Alloy Steels have smaller crystals and higher strength than traditional steels. This is an example of how changing the
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HW12006_1_KEY - Please print a copy, complete, and hand in...

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