Comparing the Density of Metals Question: What is the effect of changing the type of metal on its density? Hypothesis: If a different metal type is used‚ then the density will change. Materials: 4 metal samples Balance 50 ml graduated cylinder Water Paper towels Apparatus: Pre-Lab Questions: 1. What’s the formula to calculate density? D = M / V
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Determining the Density of Plastics 1) Introduction ⦁ a) Purpose: Determine density of different plastics ⦁ b) Hypothesis: If density is related to the ratio of mass to volume‚ then density can be calculated by using the formula D=M/V. i. c) Background: Density is the physical property that can be used to help identify substances. D=M/V. mass= found using a balanc and labeled in grams and volume=graduated cylinder or taking ( lxwxh ) measured in mL or cm3 2) Materials ⦁ a) List -graduated
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Lab 34-2: 1. The general trend for bone density as a person ages is a steady decline as years pass. This study shows that every decade‚ males and females bone density slowly decreases. 2. Between the ages of 20-50 females lose about 11% of their bone density and males lose about 13% of their bone density. Males do in fact lose more density then females but they lose it at a more stable and steady rate. Females lose less density at more unstable rate going from about 6% (40-50) to about 9%
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Brief History of Relative Deprivation The “Relative Deprivation Theory” dates back nearly 65 years ago. Samuel Stouffer invented the notion of relative deprivation.(Pettigrew ‚ walker kitabı) Samuel Stouffer made a survey with American soldier in World War II. Survey’s results was improbable. According to the survey’s results military police more pleased than U.S. Army Air corpsman even though military police’s promotions were slower than U.S. Army Air corpsman’s promotions. Stouffer indicated that
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____________________________ 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” to see
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Lab Conclusion on Density In the lab of measuring density‚ precision and accuracy are very key components. Precision is the exactness of a measurement or good technique. Now accuracy is the value that we measured compared to the true value that the book has. Precision and accuracy are important because you need to have good technique and have your value close to the true value to minimize the error analysis. If you do these steps correctly you are a good chemist but if you do them poorly they
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Relative pronouns can be used quite differently in Spanish than in English‚ and the fine points of their use goes well beyond what would be expected of beginners. So keep in mind that most of this lesson focuses on the most common usages; as you learn Spanish you will learn other sentence constructions as well. Relative pronouns are pronouns that are used to introduce a clause that provides more information about a noun. Thus in the phrase "the man who is singing‚" the relative pronoun is "who";
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LabVIEW (Laboratory Virtual Instrument Engineering Workbench)‚ created by National Instruments is a graphical programming language that uses icons instead of lines of text to create applications. A LabVIEW program consists of one or more virtual instruments (VIs)‚ Virtual instruments are called such because their appearance and operation often imitate actual physical instruments. The objective of developing a virtual interface that acquires data from physical instrument (pH probe) used in the monitoring
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SWINRISE 4 Activity 1 Four Cords Song ‘The Axis of Awesome’ is an Australian comedy band. According to one of these comedians‚ all the greatest hit songs used the same ‘four cords’. To prove this‚ they have brilliantly put together 20 hit songs using these four cords. Listen to the song posted in BB Week 4 folder and do the following: 1) See if you know any of the song titles or the singers and check with the answers provided on BB. 2) In your group blog‚ discuss the question‚ ‘Is it ethical
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Soil Porosity & Density Objective: To determine if the porosity of soil is related to the density. Hypothesis: I think that that the porosity of soil is related to the density because the higher the density of the sand the lower the porosity of the sand‚ which are both componets for the water to rise. Materials: • Sand and Loam samples • 2 large containers • Plastic cups • Water • Scale Procedure: Loam 1) The loam without the water was fresh ‚ it had different shades of black‚ and
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