____________________________ http://phet.colorado.edu/en/contributions/view/3350 Buoyancy and Density Activity Directions: Go to the following website to use an interactive simulation to work with buoyancy and density. http://phet.colorado.edu/sims/density-and-buoyancy/buoyancy_en.html Procedure: Getting Familiar 1. On the Intro screen‚ mess with the apparatus‚ changing the blocks‚ observing what happens when the mass‚ volume and densities are held constant. 2. Check and uncheck the boxes under “Show Forces”
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1. A Little About Buoyancy o In order to understand how a boat can float in water we must first go over one of the principles behind such a feat: buoyancy. This principle in physics was discovered by the mathematician Archimedes about 2‚000 years ago‚ so it has been taught and understood for some time now. The basics of buoyancy involve the relationship between the weight of the object in question‚ in this case a boat‚ and the weight of the water it displaces. If the object weighs more than the
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tersely: Buoyancy = weight of displaced fluid. Archimedes’ principle does not consider the surface tension (capillarity) acting on the body‚[3] but this additional force modifies only the amount of fluid displaced‚ so the principle that Buoyancy = weight of displaced fluid remains valid. The weight of the displaced fluid is directly proportional to the volume of the displaced fluid (if the surrounding fluid is of uniform density). In simple terms‚ the principle states that the buoyancy force
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BUOYANCY AND ELASTICITY: DETERMINANTS OF LOCAL TAX SYSTEM ’S PERFORMANCE By: Julhusin B. Jalisan Civil servants and priests‚ soldiers and ballet-dancers‚ schoolmasters and police constables‚ Greek museums and Gothic steeples‚ civil list and services listthe common seed within which all these fabulous beings slumber in embryo is taxation. Karl Marx Every citizen‚ whether young or old‚ wealthy or poor‚ property owners or property-less‚ pays taxes to help finance governmental functions
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Buoyancy Lab: Archimedes’ Principle TABLE OF CONTENTS CONTENTS …………….………….…………….……………………………..Page No. 1. Abstract…………………………….…………….………….…………….……………….. 3 2. Objective & Introduction ……….……………………………………….………………...4 3. Theory & Experimental Methods ……………………………….………………………...5 4. Results & Discussion …………………………………………………….………….............6 5. Conclusions..…………………………………………………….…………………………..7 6. References.…………………………………………………………………………..………8 7. Appendix ……………………………………………………….……………..………….…9
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Research: The word density means the degree of compactness of a substance. There is density in everything in your everyday life (matter.)The formula to find density is d=m/v.The density of solids and liquids is usually stated as g/cm3‚ while gases are usually stated as kg/m3. A real life example of density would be that ice floats on water because it is less dense than water‚ or it sinks because it is more dense than water. The only substance that breaks this rule is ice. Archimedes was
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PHYSICAL PROPERTIES: DENSITY Introduction According to the definition Density is the physical property that allows us to compare the mass of substances for a specific volume. In this Lab activity that took place in Deree College‚ Agia Paraskevi Campus we deal with the density of solids and density of liquids. The main purpose of this experiment is to understand what in reality density means‚ how we can measure it‚ how useful it is‚ what is the difference between density of solids and liquids
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10/1/13 Cubs Density The purpose of this experiment is to find out the density of the unknown solid object by determining the mass and the volume through the experiment. To do this we will be get the mass of the object and determine the volume of the object by placing it into a liquid. Then we will divide mass by volume and get its density. Materials 3 buckets filled with water Water A bucket to measure volume A stool Measuring scale to measure weight Notebook Procedure 1. Find
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35.46 13 2.72g/cm3 53.95 11 4.9g/cm3 During the lab‚ the whole purpose of the lab was to determine density of both regular and irregular shaped objects. Throughout the lab I found out that both of the small and large silver rod‚ do not have the same density‚ and also found out that the gold rod is not real gold. My hypothesis is that since‚ the large and small silver rod has about the same density I believe that they would have about the same amount of volume. They both might displace the same amount
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Problem How do ships float even though they are so heavy? Research • What is buoyancy? – Buoyancy is the upward force caused by a fluid such as water. • What is Archimedes Principle? – The buoyant force is equal to the weight of the displaced water. • What is density? – Density is the mass of a material per unit volume. – Example: The density of steel is 10 times more than the density of wood. Hypothesis I think when the weight of the object is greater than the displaced water
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