7B (A/B Sections) Quiz #1 Grading Rubric
Question a (2 total possible points):
Q (2): Claimed that P >1atm with accurate physical explanation (see answer key)
W (1.5): Wrote a formula for calculating P using Bernoulli’s equation or described how
to find P based on the height difference but in either case did not indicate that P > 1atm
E (1.25): Claimed that P > 1atm without explanation
R (1): Stated that since the tank is closed to the atmosphere, P is not necessarily 1atm, but
provided no further analysis
T (.5): Claimed that P = 1atm and/or pressure is constant everywhere
Z (0): No work/answer
Question b (4 total possible points):
Q (4): Correct calculation of d
1
based on Bernoulli’s equation (see answer key)
W (3.75): Calculation and application of Bernoulli’s equation are correct except for a
small mathematical error resulting in a wrong answer
E (3.5): Calculation and application of Bernoulli’s equation is correct except that some
units weren’t converted resulting in a wrong answer
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 Winter '08
 Taylor
 Energy density, Bernoulli’s equation, PF

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