Archimedes principle lab report

Experiment 13: Archimedes' Principle 5/2/2020 Student Name: REPORT Section Number: Instructions 1) 2) 3) 4) Follow all of the lab activity steps given in the Lab Procedure. Attach your completed data tables to this page. TYPE YOUR ANSWERS IN THE PROVIDED SPACES below & in your data tables. Attach additional sheets of paper that clearly (NEATLY) show all of your calculations performed during this experiment. Results 1) Consider a situation where instead of using a block of pure aluminum (like we used in the simulation) we used a block with impurities (meaning there were small amounts of substances other than aluminum in the block). How would the presence of these impurities in the block affect your results in Part A? Would this be an example of measurement error or systematic error? Write out your answer in a clear and well supported paragraph. erase this and type in your answer 2) In Part B, the submerged weight of the ice, wood, and styrofoam blocks was negative. Why? Write out your answer in a clear and well supported paragraph. erase this and type in your answer 3) In Part C, how was the submerged weight of the block different for each fluid? Why did this difference occur? Write out your answer in a clear and well supported paragraph. erase this and type in your answer Experiment 13: Archimedes' Principle 5/2/2020 Student Name: Section Number: A. Buoyant Force on Heavy Objects Table 1 Block Material = mb = Vb = Wa = Ws = Fb = W water = % difference = Table 2 Block Material = mb = Vb = Wa = Ws = Fb = W water = % difference = B. Buoyant Force on Light Objects Table 3 Block A Material = W Aa = W As = Table 4 Block B Material = W Ba = W ABs = W Bs = F Bb = W water = % difference = Table 5 Block B Material = W Ba = W ABs = W Bs = DATA F Bb = W water = % difference = Table 6 Block B Material = W Ba = W ABs = W Bs = F Bb = W water = % difference = C. Buoyant Force in Other Liquids Table 7 Block Material = Vb = Wa = Table 8 Fluid Material = r fluid = Ws = Fb = W fluid = % difference = Table 9 Fluid Material = r fluid = Ws = Fb = W fluid = % difference = E X P E R I M E N T 13 Archimedes’ Principle Produced by the Physics Staff at Collin College Copyright © Collin College Physics Department. All Rights Reserved. University Physics, Exp 13: Archimedes’ Principle Page 1 Purpose You will use Archimedes’ principle in this experiment to determine the densities of several solids and liquids. Equipment • • • • • • Roll of String 1 Overflow Can 1 Large Ringstand 1 Metal Cube w/ Hook 1 Wooden Object w/ 2 Hooks 1 Aluminum Cylinder w/ Hook • • • • • • 1 Lab Jack 1 250-mL, 1 1000-mL Beaker 1 Support Rod w/ 90° Clamp 1 Lab Balance 1 Hydrometer Bottle of Unknown Liquid Introduction A solid object may float or sink when placed in a given fluid (i.e., in a gas or a liquid). If the object floats, it is buoyed up by a force equal to its weight. According to the ancient Greek philosopher Archimedes, the buoyant (upward) force exerted on an object that is either wholly or partially submerged in a fluid is equal to the weight of the amount of fluid displaced by the object. The object will sink when its weight exceeds the weight of the displaced fluid. Because of Earth’s gravity, every fluid substance from the atmosphere to the oceans to a tank full of gasoline has an internal pressure that increases with depth. And because fluids are compressible, the greater pressure at a given depth squeezes the fluid into greater density at that depth. We live our lives at the bottom of the atmospheric ocean which exerts about 15 pounds of force on every square inch of our bodies.