MT1DSol

# MT1DSol - Oregon State University PH 202 Midterm Exam 1...

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Oregon State University PH 202 Winter Term 2012 Midterm Exam 1 (Wednesday, January 25, 7:00 p.m.) GENERAL DIRECTIONS: Fill out the cover sheet completely , as indicated—including your test form letter, which is D. Follow the specifc directions on each page o± the answer ±orm . Use standard SI units unless directed otherwise; use three signifcant digits in all fnal numerical answers. Questions #1-4 are worth 8 points each; #5-7 are worth 10 points each; #8-9 are worth 12 points; #10 is worth 14 points. Physical constants and other possibly useful information V sphere = (4/3) p r 3 V cylinder = p r 2 h V cube = s 3 g = 9.80 m/s 2 1 atm = 1.01 x 10 5 Pa r water = 1000 kg/m 3 r Hg = 13,600 kg/m 3 –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 1. Which statement is true? (A) r gh is a calculation oF gravitational potential energy per unit volume. (B) P·V is a calculation oF pressure potential energy. (C) P/A is a calculation oF Force. (D) All oF the above. (E) A and B only. (±) A and C only. (G) B and C only. (H) None oF the above. –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 2. Which statement is true? (A) Archimedes’ Principle states that the buoyant Force is the ²uid pressure exerted on the underside oF any part oF any object immersed in that ²uid. (B) Pascal’s Principle states that pressure is the same throughout any body oF incompressible ²uid. (C) Bernoulli’s equation equates the mechanical energy density oF any two points in a steady ²ow oF incompressible ²uid. (D) All oF the above. (E) A and B only. (±) A and C only. (G) B and C only. (H) None oF the above. –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 3. Three blocks are placed in a tub (A) Block 2 has the largest buoyant Force acting on it. with water (see bottom oF page). (B) Block 1 must be more dense than block 2. The blocks have volumes V 1 , V 2 (C) Block 1 must have more mass than block 2. and V 3 . Only blocks 1 and 2 ²oat, (D) All oF the above. and

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## This note was uploaded on 03/10/2012 for the course PH 202 taught by Professor Staff during the Winter '08 term at Oregon State.

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MT1DSol - Oregon State University PH 202 Midterm Exam 1...

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