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7BSp2009Q1Rubric

# 7BSp2009Q1Rubric - Rubric for 7B Spring 2009 Quiz 1 Notice...

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Rubric for 7B Spring 2009 Quiz 1 Notice that the quiz tells you to “explain” your answers. The explanation is the most important thing and to explain means to use the model that is appropriate. For fluids this is the energy density model and so you have to use the entire model . Some of you just commented on parts of this model in your answer. There are 5 energy density terms in this model and if you leave out comments on any of them then your grade will go down because you have ignored important ideas in your explanation. (a) 35% of quiz Q 10.0 Perfect answer using the transport equation, comparing a point at the bottom of the straw with a point at the top of the straw, and explaining precisely how the only non-zero terms were the pressure change and the gravitational potential energy change. Then drew conclusion that the gravitational potential energy density was highest at the top so the pressure must be smallest at the top and just enough smaller that there is no flow. R

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7BSp2009Q1Rubric - Rubric for 7B Spring 2009 Quiz 1 Notice...

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