An experiment to investigate the factors which affect Resistance in a wire What is resistance? A potential difference (V) applied across a wire of length (l)‚ there is in the conductor‚ an electric field (E). In this electric field the free electrons are not however under continuous acceleration (Ee/m). This is because they repeatedly collide with the moderately massive vibrating atoms losing their kinetic energy. The vibrating atoms having gained this kinetic energy now vibrate more. The resulting
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years and will be relevant for centuries. Looking through modern day high schools you can most definitely find some of George Orwell’s popular books such as Animal Farm and Nineteen Eighty Four. Which brings up the question‚ what impacts did Orwell’s brilliant writings have on the world? Orwell’s writing allows us to better understand corrupt governments and the role it’s people play to maintain their civil leaders or risk losing them to ruthless dictators. Eric Arthur Blair‚ or commonly known through
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Report Worksheet (4 pages max.) Experiment title: How Do We Identify an Unknown Substance? Guiding questions: State the question or questions that that you were trying to answer in this lab. How do you determine the two unknown types of plastic? What are the two unknown plastics? Safety considerations: Briefly describe the safety measures you had to take to perform the experiments. Before entering the lab‚ I put on my lab coat and practiced using my goggles in case
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Virtual Lab: Enzyme Controlled Reactions Worksheet 1. Which of the following does NOT apply to an enzyme: b. Inorganic 2. When an enzyme catalyzes a reaction: a. Substrate(s) bind in the active site 3. Which of the following would interfere most with the ability of an enzyme to catalyze a reaction? a. Reduced concentration of substrate available 4. Feedback mechanisms regulate the rate of enzyme activity‚ effectively “turning off” an enzyme in a reversible way until more product is needed
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were called the Etruscans. Then‚ the Greeks were the second group of people who inhabited this country before the Roman Empire started. The empire ruled over Italy for many centuries. After this‚ Italy experienced the Dark and Middle ages‚ they didn’t have an empire who could bring them back together and make them united. The Renaissance‚ which means rebirth‚ happened in Florence during the 13th century. This improved the European philosophy and art.
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WATER OUR LIFELINE Water is a transparent fluid which forms the world’s streams‚ lakes‚ oceans and rain‚ and is the major constituent of the fluids of living things. As a chemical compound‚ a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water covers 71% of the Earth’s surface.[1] It is vital for all known forms of life. On Earth‚ 96.5% of the planet’s water is found in seas and oceans‚ 1.7% in groundwater‚ 1.7% in glaciers and the ice caps of Antarctica
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ENZYME LAB REPORT 1. In your own words‚ define objective qualitative and objective quantitative data. DO NOT USE EXAMPLES AS YOUR SOLE DEFINITION. (3) There are two different types of information that can be obtained from research. The types of information that can be obtained are quantitative and qualitative data. Research results are considered qualitative when the results can be answered with a simple statement of yes or no. Qualitative data does not attempt to give a numerical value; instead
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The Renaissance was the time period between the fourteenth and seventeenth centuries that led to the beginning of many new ideas and developments. It was a time period of prosperity for many European countries especially Italy. Economic and intellectual changes occurred and it also gave the opportunity for many new doors to open to new directions in art‚ social‚ scientific‚ and political beliefs. Although during this time of great reform women had minimal amounts of influence. It is argued‚ that
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dissimilar water samples and test them in several different methods to see which water sample had the best quality. The tests that were used were that of: A faecal coliforms test‚ phosphate test‚ nitrates test‚ pH test‚ dissolved oxygen test and a total dissolved solids test. It was thought out that filtered water would hold the highest standards‚ the most sanitary water samples was that of tap water‚ then followed by filtered‚ then tank (rain) water and creek water respectively. (The three water samples
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Lab 2 “Separation of a Mixture of Solids Lab Report Assistant (10 points) Data Table 1: Experimental Data Grams Percent of mixture Iron (Fe) fillings 0.9 g 20 % Sand 1.2 g 25 % Table salt 1.6 g 25 % Benzoic acid .8 g 16 % Total 4.5 g 86 & Questions A. How did your proposed Procedures or flow charts at the beginning of this experiment compare to the actual Procedures of this lab exercise? (2 points) I proposed a magnet would be the used to remove the iron from
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