How to calculate density worked example problem thoughtco. Fluids and elasticity in this chapter we study macroscopic systems. If the fluid is pressing against a horizontal base of a vat, then the total force exerted by the fluid against the base is. Density is the amount of matter within a certain volume. Displaying all worksheets related to fluid pressure. What force size and direction must the window frame exert on the window. Guess if the substance is a gas, a liquid, or a solid.
This calculation worksheet will help and challenge learners to solve simple problems involving density and pressures. Two important properties in the study of fluid mechanics are. The density conversion factor is used commonly in everyday oilfield pressure related calculations. Click here for some fun online games related to our fluids unit. We report the measurement of the viscosity and density of various diesel fuels, obtained from british refineries, at elevated pressures up to 500 mpa and temperatures in the range 298 k to 373 k. Viscosity activity worksheet 1 viscosity activity worksheet 1. If the top of the fluid column is placed at the surface of the fluid, then p 1 p atm if the container is open.
Calculate the density of regular and irregular objects and liquids. The kilogram is the mass of a platinumiridium cylinder kept at sevres in france. Physics fluid mechanics statics worksheet 1 mafiadoc. If an object is less dense than the fluid in which it is placed, it will float on the fluid. Density practice problem worksheet 1 a block of aluminum occupies a volume of 15. The buoyant force acting on an object in a fluid is equal to the weight of the fluid displaced by the object. Density worksheet chemistry in context 20089 perhaps someone has tried to trick you with this question. Density is a significant physical property of volved, otherwise there is danger of confusion and materials, and is important in science and in misinterpretation of results. Pdf density and viscosity measurement of diesel fuels at. Which of the following substances are fluids at room temperature. In a car lift used in a service station, compressed air exerts a force on a small piston having a radius of 1. To determine the densities of water, an unknown liquid, a rubber stopper, and. Chapter 12 fluid mechanics university of minnesota duluth.
Fill in the third column of the table with one of the following choices for type of fluid. Worksheets are, work 2, practice problems work answer key, the atmosphere air pressure, chapter 3 fluid statics, module fluids density and pressure module, physics 05 03 pascals principle and measuring pressure name, name date air pressure and altitude 1 activity. Carefully pour 20ml of each of the liquids into the measuring cylinder. It can also be used to check students understanding of the topic. Due to a strong wind, the outside pressure drops to 0. The volume expansion coefficient of an ideal gas p rt at a temperature t is equivalent to the inverse of the temperature. Which is heavier, a pound of lead or a pound of feathers. Density worksheet block name the concept of density is sometimes confusing since it has to do with particles that we cannot see atoms and molecules. Apr 29, 2017 this calculation worksheet will help and challenge learners to solve simple problems involving density and pressures. Selection file type icon file name description size revision time user. When they give this incorrect answer, these people are really thinking of density. Density, solid and liquid pressure worksheets and answers.
Calculate the mass of a liquid with a density of 2. Write bernoullis equation for the problem and simplify by eliminating those factors that do not change. The thickness of a sheet of metal foil is too thin to measure with a ruler. In a fluid that is standing still, the pressure p at depth h is the fluid s weight density w times h.
Overview of density worksheet key formulasconcepts. All of the following are acceptable units for density, except. For a fluid in motion, the volume flow rate gives the volume of fluid that passes a cross section per unit time and is given by av, where a is the crosssectional area of the tube and v is the fluid speed. Density grade 8 free printable tests and worksheets. Sample problem density l a volume of 1m3 is occupied by two fluids. Any object completely or partially immersed in a fluid experiences an upward or buoyant force equal to the weight of the fluid it displaces. List two methods that engineers use to measure viscosity. It is very important that you pour them in the order above. An unknown liquid occupies a volume of 5 ml and has a mass of 40 grams. Viscous fluids lesson viscosity worksheet 1 viscosity worksheet. Net upward force is the buoyant force is equal to the weight of the displaced fluid.
There is three times as much mass of fluid 2 as there is of fluid 1. Fluid 1 has a specific gravity of sg2, while fluid 2 has a density of 800 kgm3. Density is the only thing affecting whether something floats or sinks. Table of densities solids density gcm3 solids density gcm3 marble 2. Density teacher handout the young scientist program. Assuming the density of the fluid rto be constant, a force balance in the vertical zdirection gives 36 where w mg rg x z is the weight of the fluid element. A large value of for a fluid means a large change in density with temperature, and the product t represents the fraction of. Density is the mass per unit volume and is all specific gravities in terms of water at 40 c. Which of the following materials will float on water density 1 gml. In bernoullis equation, the density is mass density and the appropriate units are kgm.
If an object has a higher density than the fluid it is in fluid can mean liquid or gas, it will sink. However, one of its most important uses in fluid mechanics is to specify both the volume and mass flow rate of a fluid. The table below includes laboratory observations of four different fluids. What formula is used to calculate the volume of a solid object. Archimedes principle worksheet answers more than 2,000 years ago, archimedes discovered the relationship between buoyant force and how much fluid is displaced by an object. This example problem shows the steps needed to calculate the density of an object and a liquid when given the mass and volume. Only the height matters since that is the direction of gravity. Density is the relationship of the mass of an object to its volume. Thus, we conclude that the pressure difference between two points in a constant density.
What force must the compressed air exert in order to lift a car 6 weighing 17,750 newtons. The extensive literature on density specific gravity may be determined at any. Volume of a rectangular shaped objectcube length x width x height l x w x h. Pressure and velocity the basic definition for velocity has been given previously. This pressure is transmitted to a second piston of radius of 6. Calculate the water pressure at the bottom of this swimming pool.
It is a measure of how tightly packed and how heavy the molecules are in an object. From this information, calculate the density of mercury. Mass, density, and the particle theory of matter minds on. Worksheet for fluid and electrolytes salem state university. In the fist example we have 9 dots 1 dot per square. Tricks with liquid density student worksheet part 2 food colouring alcohol water 2 x clear glasses. What physical characteristic distinguishes a fluid from a solid. A bingham plastic is a material that behaves as a solid at low stresses but flows as a viscous fluid at high stresses.
Bernoullis equation is used to solve some problems. Dividing by x and rearranging gives 37 where gs rg is the specific weightof the fluid. A rock has a mass of 210 grams and occupies a volume of 70 cm3. Work out which order you should pour the liquids in by checking the density table above. Describe the fluid you are working with using every day descriptive vocabulary. Density conversion factor since density is measured in pounds per gallon ppg, a density conversion factor is required to make it compatible with the pounds per square inch per foot ft measurement that pressure gradient requires.
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