Purpose: In this lab‚ we will heat up a metal rod and measure how much it expands. We will calculate its Coefficient of Linear Expansion‚ α‚ and prove the formula for thermal expansion‚ ΔL = αLiΔT. Also‚ we heat up a known volume of methyl alcohol and calculate its Coefficient of Volume Expansion‚ β‚ and prove the formula for volume expansion of a liquid ΔV = βViΔT. Equipment: Hollow Metal Rods of different metals‚ Steam Generator‚ Stand‚ Burner‚ Flexible Hoses‚ Motion Amplifier‚ Micrometer
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Purpose The goal of this lab is to find out which metals were used in the minting of pennies before and after 1982 by calculating their densities. Hypothesis If the penny was made after 1982 then its density will be higher than those made before 1982. Materials • 1 Graduated cylinder • 30 mL of water • 10 pennies minted before 1982 • 10 pennies minted after 1982 • 1 electric scale Procedure The mass of ten pennies minted before 1982 was calculated five times using the scale and then
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Usain Bolt is not just some runner. Usain Bolt is a rich man who loves fast cars. However he is one of the best Olympic athletes ever know. He has several of the sprinting records. He also has several sponsorships. He is a legendary runner. Even in Usain Bolts early years he was a talented athlete. “Usain bolt was born on August 21 1986 in Sherwood cornet a small town in Jamaica.” (Usain Bolt) He grew up with his parents Wellesley And Jennifer Bolt‚ his brother Sadiki and sister name Sherine. (Usain
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As soon as the starting pistol fires‚ the eight competitors of the 100m final are off. A mere 9.58 seconds later‚ a roar is heard piercing the stadium. Everyone watches as Usain Bolt crosses the finish line‚ breaking the world record. The fans cheering him on‚ Bolt does his famous lightning bolt pose and proudly holds the Jamaican flag. Arguably the fastest man the in the world‚ Usain Bolt’s journey to the top required a lot of hard work and dreams. Usain Bolt’s professional career started in the
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Jamaican sprinter Usain Bolt is arguably the fastest man in the world‚ winning three gold medals at the 2008 Olympic Games in Beijing‚ China‚ and becoming the first man in Olympic history to win both the 100-meter and 200-meter races in record times. Bolt also won three Olympic gold medals at the 2012 Summer Olympic Games in London. He ran the men’s 100-meter race in 9.63 seconds‚ a new Olympic record‚ making him the first man in history to set three world records in Olympic competition. He made
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Experiment: determination of densities Introduction The density of a sample of matter represents the mass contained within a unit volume of space in the sample. For most samples‚ a unit volume means 1.0 ml. The units of density‚ therefore‚ are quoted in terms of grams per milliliter (g/ml) or grams per cubic centimeter (g/cm3) for most solid and liquid samples of matter. Density is often used as a point of identification in the determination of an unknown substance. The density of the unknown might
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Schools have Metal Detectors? Have you ever felt violated‚ disrespected and dishonored to the point of no return? Many students around the world feel such a way every day. According to a 2002 National School Board Association report‚ 10.1 percent of school districts nationwide implement the use of metal detectors. Are metal detectors even effective? Why should students be forced to cooperate with a violation of their rights? High Schools around the world should not employ the use of metal detectors
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ability to identify metals is an extremely important one. With this ability‚ we can correctly assign different traits‚ and use the metal in its most suitable environment. This is important to many industries‚ where metals play an increasingly large role. Determining the identity of the metal is paramount to determining what conditions to use the metal under. This seemly simple task is‚ however‚ can be quite complex‚ as there are many ways by which one can identify a metal‚ each with varying amounts
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Abstract The purpose of this experiment was to identify whether density is an extensive or intensive physical property. By using water displacement‚ the volumes of the paper clip samples were measured and the masses were obtained by using an electronic balance. Each mass and volume was unique to their sample so by using their values‚ density was used to identify substances in the lab. After conducting the experiment‚ the results showed that there was a positive slope between the different paper
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Relative Density Laboratory Report Jessica Manansala‚ Nathaniel Martinez‚ Maria Pacia‚ Jeanelle Pedrigal‚ Miguel Poblete Department of Math and Physics College of Science‚ University of Santo Tomas España‚ Manila Philippines Abstract The experiment would introduce us to 3 concepts‚ namely‚ the definition of relative density‚ the Archimedes principle and the determination of density by the Archimedes principle. In the first activity‚ we were tasked with finding the density of a cylinder
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