10-26-12 3RD Block Mrs. Sneed Hot Air Balloon Report Hot air balloons fill up slowly and then rise in the sky. Two important principles of physics: the ideal gas law and Archimedes’ principle are the reasons hot air balloons fly. The mathematical relationship between the volume pressure and the temperature of a gas is called the ideal gas law. When a gas is heated‚ as in a hot air balloon‚ then its volume will increase. However‚ there is a heater located in the balloon’s basket that heats the
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To make a standard solution Apparatus: Volumetric flask Method: 1) 2.4g to 2.5g of sulphamic acid was weighed out‚ firstly by weighing the container and the sulphamic acid together‚ then pouring the sulphamic acid into a beaker. The container was then weighed again and the initial weight and the weight of the container alone were subtracted from one another to provide the mass of the sulphamic acid. 2) The sulphamic acid was then dissolved in 50cm³ of distilled water‚ using a glass
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Data Table: Pecans Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Mass of 50 mL water (g) 50 50 50 50 50 Minimum Temperature of Water (C) 22 22.4 18.5 17.2 18.1 Maximum Temp. Of Water (C) 77.2 88.5 90.4 74.3 83.9 Initial mass of food (g) 4.8 5.4 5.1 4.7 4.5 Final Mass of food (g) 3.3 3.3 3.2 3.1 3.1 Length of time the food burned 4 minutes 4 minutes 3.45 minutes 3.83 minutes 3.6 minutes Cashews Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Mass of 50 mL water (g) 50 50 50 50 50 Minimum Temperature of Water
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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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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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Density of a regular shaped object Object Mass / g ± 0.05 g * Length / cm ± 0.003 cm ** Width / cm ± 0.003 cm ** Height / cm ± 0.003 cm ** T1 T2 T3 T4 T5 T1 T2 T3 T4 T5 T1 T2 T3 T4 T5 A 44.9 5.975 5.980 5.980 5.980 5.975 1.500 1.500 1.500 1.500 1.500 0.600 0.600 0.605 0.600 0.600 B 16.5 4.400 4.395 4.400 4.395 4.395 1.500 1.500 1.495 1.500 1.495 0.300 0.305 0.305 0.300 0.300 C 22.5 3.000 2.995 3.000 3.000 3.000 1.500 1.505 1.495 1.500 1.500 0.600 0.595 0.600 0.595 0.595 D 22.6 6.005 6
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The Effects of Population Density PSY/460 April 7‚ 2014 The Effects of Population Density You can find noise and pollution in nearly all major cities. Noise in general can be a serious
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Cartesian Diver The purpose of the Cartesian diver is to demonstrate the compressibility of a gas‚ the incompressibility of water‚ Boyle’s law‚ Pascal’s law‚ and Archimedes’ law. Boyle’s Law states that under conditions of constant temperature and quantity‚ there is an inverse relationship between the volume and pressure for an ideal gas. Pascal’s Law states that if pressure is applied to a non-flowing fluid in a container‚ then that pressure is transmitted equally in all directions within the
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Today most people think of ships as common every day tools that don’t take much to understand. One builds a hull and some little structuring later and bam you have a ship. But ship building is much more than taking some metal and building a floating structure. It takes years of understanding and research to build such a vessel. Mankind has been building ships for centuries but it was not until the 17th century that Archimedes‚ a great Greek Mathmatitions‚ ideas were used and studied closely.
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