the weight on the string is 4oz‚ then the string will produce more swings. 2. If the string is 18 inches long‚ then there will be fewer swings. 4. Methods. What methods did you use to test your hypotheses? Write out the steps you took in your experiment. Use full sentences‚ including as much detail as possible‚ and write in paragraph form – no bullet points.
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Introduction The common bean (Phaseolus vulgaris) is a fast growing plant and is used commonly in experiments due to its easy testability. It can grow in a variety of conditions and is easy to see the effects of different treatments. The idea of the treatment that we applied to our bean plants came from our class and scientific papers that help back our experiment. Examining many studies on the effects of nitrogen fertilizer on a variety of plants helped us better understand what the fertilizer was
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Stanley Milgram was an extremely famous psychologist who was best known for his groundbreaking experiment on the subject of obedience during the 1960s. Milgram began his career as a psychologist just around the time that the horrifying truth of the concentration camps came out. The fact that almost an entire nation obeyed one man‚ who commanded them to do inhumane and grotesque acts to other human beings intrigued Stanley Milgram. He became even more interested when he began watching the trial of
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Sulfa Drugs: Preparation of Sulfanilamide Introduction The purpose of this experiment is to prepare sulfanilamide from p-Acetamidobenzenesulfonyl chloride. This will be done using reflux‚ vacuum filtration‚ and melting point determination. Experiment Scheme6 Figure 1. Reaction equation.6 A hot water bath was prepared in a fume hood using a 250-mL beaker. 2.5 g of p-acetamidobenzenesulfonyl chloride was placed into a 50 mL Erlenmeyer flask and 11 mL of dilute ammonium hydroxide solution
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calcium carbonate. 0.00680 moles CaCO3 x 100 g CaCO3 1 mole CaCO3 = 0.68g CaCO3 Show the calculation of the percent yield. Actual yield/Theoretical yield x 100 (0.5/0.68) x 100 = 73.5% Conclusion: The objectives of this experiment are to predict the amount of product produced in a precipitation reaction using stoichiometry‚ to accurately measure the reactants and products of the reaction‚ to determine the actual yield vs. the theoretical yield and to calculate the percent
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EXPERIMENT 5 TRANSVERSE STANDING WAVES A string attached to a turning fork is set vibrating at the same frequency as the tuning fork. The length and tension in the string are adjusted until standing waves are observed on the string. By knowing the tension in the string and the wavelength of the standing waves‚ the frequency of oscillation of the string and thus‚ the tuning fork is found. This value is then compared to a strobelight determination of the frequency. THEORY
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The Failure to Escape Traumatic Shock In May of 1967 Martin Seligman and Steven Maier conducted a research Called “Failure to escape traumatic shock”. This experiment involved three groups of dogs. Each group of dogs had a different purpose. Group one was the control group and did not receive a shock. Group two received a shock but was able stop the halter from shocking them by pressing a button. Group three was shocked and was not able to stop the shock‚ they were forced to wait for group two
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Summary The Stanford Prison was an experiment to study the psychological effects and reactions of students pretending to be prisoners and guards. This study was conducted in 1971 and although it was suppose to have duration of 2 weeks‚ it finished after just 6 days. The experiment required 24 male students for the role-play and paid $15‚00 per day. Several volunteers answered to an ad on a newspaper and were selected after being interviewed. They were all healthy and there were no psychological
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Question How does chewing gum affect concentration on short term auditory memory tasks? Hypothesis Purpose The purpose of this experiment was to show teachers whether or not they should allow their students to chew gum in class. If teachers take a gander at this experiment then teachers may allow gum for the chance of better test grades. It may also help individuals‚ knowing that chewing gum can improve concentration on short term auditory memory tasks. Materials and Procedures Chewing gum
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n this study‚ the Stroop effect experiment will be carried out on matching and mismatching test. The Stroop effect experiment was named after Ridely Stroop‚ published in 1935‚ and the purpose of this experiment was to demonstrate the difference in reaction time of reading the name of the coloured words and naming the ink of the colour. Not only does it record the reaction time‚ but it also aims to measure individuals focused attention‚ learning and memory (Stroop‚ 1935). However‚ when reading through
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