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Quiz4_solutions

# Quiz4_solutions - Physics 2 Summer Session 2008 Quiz 4...

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Physics 2 – Summer Session 2008 Quiz # 4 Question 1 Object A has twice the density and half the mass of object B. The ratio of the volume of A to the volume of B is (a) ½ (b) 1 (c) ¼ (d) 2 (e) 4 Mass = Density x Volume Æ Volume = Mass/Density. Æ Correct answer is (c) Question 2 The pressure in a liquid is measured as a function of depth in the liquid for four different liquids. The results are plotted in the figure at the right. The liquid with the smallest density is (a) A (b) B (c) C (d) D Variation of pressure with depth: p = p 0 + ρ gh Æ smallest density means slowest variation, Æ correct answer is (d) Question 3 Refer again to the four liquids on Question 2. A certain object just barely floats when dropped into a beaker filled with liquid B. If the same object was dropped into a beaker filled with liquid D, the object …… (a) would float (b) would sink (c) might float or might sink. There is no way to tell without additional information. Object has same density as liquid B.

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Quiz4_solutions - Physics 2 Summer Session 2008 Quiz 4...

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