1. Quiz, Section I 1. What is your section number? 2. Three objects rest on bathroom scales at a lake bottom. Object 1 is a lead brick of volume 0.2 m 3 Object 2 is a gold brick of volume 0.2 m 3 Object 3 is a lead brick of volume 0.1 m 3 DATA: specific gravity of lead = 11.3 specific gravity of gold = 19.3 specific gravity of mercury = 13.6 Which statement is true? a) #1 and #2 have the same buoyant force b) #1 and #2 register the same weights on the scales c) #1 and #3 have the same buoyant force d) #1 and #3 register the same weights on the scales e) If the lake were filled with mercury, the scales would not change.

2. Quiz, Section II 1. What is your section number? 2. Three objects rest on bathroom scales at a lake bottom. Object 1 is a lead brick of volume 0.2 m 3 Object 2 is a gold brick of volume 0.2 m 3 Object 3 is a lead brick of volume 0.1 m 3 DATA: specific gravity of lead = 11.3 specific gravity of gold = 19.3 specific gravity of mercury = 13.6 Which statement is true? a) #1 and #3 have the same buoyant force b) #1 and #3 register the same weights on the scales c) #1 and #2 have the same buoyant force d) #1 and #2 register the same weights on the scales e) If the lake were filled with mercury, the scales wold not change.

3. Quiz, Section III 1. What is your section number? 2. Three objects rest on bathroom scales at a lake bottom. Object 1 is a lead brick of volume 0.2 m 3 Object 2 is a gold brick of volume 0.2 m 3 Object 3 is a lead brick of volume 0.1 m 3 DATA: specific gravity of lead = 11.3 specific gravity of gold = 19.3 specific gravity of mercury = 13.6 Which statement is true? a) #1 and #2 have the same buoyant force b) #1 and #3 have the same buoyant force c) #1 and #2 register the same weights on the scales d) #1 and #3 register the same weights on the scales e) If the lake were filled with mercury, the scales would not change.