Purpose: To investigate the relationship between the speed of sound in air through the pulse-echo experiment and the measured air temperature. Hypothesis: I believe the measured air temperature will affect the speed of sound because sound waves are longitudinal waves composed of the alternating compressions and rarefactions in air. If the air temperature is below 0°C‚ then the speed of sound would be lower than 331.6 m/s and if the air temperature is above 0°C‚ then the speed of sound would be higher
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Title : Centripetal force Objective To measure the centripetal force for whirling a mass round a horizontal circle and compare the result with the theoretical value given by F = m(2r . Apparatus 12 slotted weights with hanger (0.02kg each) 1 rubber bung with nylon string about 1.5m 1 glass tube about 20cm long 1 triple beam balance 1 meter rule 1 stop watch Several small paper markers Theory When a mass m attached to a string is whirled round a horizontal circle of radius r‚ the
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This experiment tested the growth of E.coli with inserted plasmid on an agar plate with Ampicillin. One colony of E.coli resistant to Ampicillin was grown during this experiment. The overall goal of the experiment was to successfully grow E.coli on the agar plate‚ which would show that the plasmid had been effectively inserted into the bacteria’s genes. This experiment helped students understand how plasmids were inserted into bacteria and used in real life situations. It also showed how the bacteria’s
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Abstract: This experiment was completed with the intention of testing if two specific plants were allelopathic. Allelopathicity is defined as “They are allelon which means "of each other"‚ and pathos which means "to suffer". Allelopathy refers to the chemical inhibition of one species by another. The "inhibitory" chemical is released into the environment where it affects the development and growth of neighboring plants.” (Ref 1) Introduction: Have you ever wondered why certain plants do
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be contacted for approval to experiment on these animals. Observations As stated by King’s experiment‚ “separation anxiety is a common behavioral disorder in dogs. It
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negative emotional and physical effects of racism within her classroom. She created an experiment in which she divided her students into unequal groups as a way of creating artificial stereotypes‚ prejudices‚ and discrimination. Jane Elliot eventually expanded her experiments into the adult population. She has done these experiments on corrections workers in prisons‚ as well as college students. Through all these experiments‚ Jane Elliot has made many conclusions and generalizations that can directly relate
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Psychology Experiment No. 2 Effect of Inconsistency of Objects in Scenario on Perception Introduction: In our everyday lives‚ we are used to seeing objects within their particular characteristic scenarios. For example‚ it is nothing to wonder if we see a person browsing the internet in a computer lab or a car speeding on a road. However‚ when we see an object which is inconsistent with the environmental setting‚ we do feel alarmed. Thus‚ it is shocking for us to see someone working on a
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Lab 4 – Energy Sources and Alternative Energy Experiment 1: The Effects of Coal Mining Table 1: pH of Water Samples Water Sample Initial pH Final pH (24-48 hours) Pyrite 6 4 Activated Carbon 7 8 Water 7 7 POST LAB QUESTIONS 1. Develop hypotheses predicting the effect of pyrite and coal on the acidity of water? a. Pyrite hypothesis = If pyrite is added to a beaker with 100mL of water‚ then it will reduce the pH over 48 hours. b. Coal hypothesis = It activated carbon is added
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4-METHODOLOGY 4-1 Study design The design of our study is a type of case-control design‚ where the induction of apoptosis on both the myeloid (K562) and lymphoid (Jurkat) human cell lines by kola nut extract will be investigated. The design of the experiment will include a control group of cells (untreated and treated with only solvent that is used in the extraction
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Zimbardo was the mastermind of the Stanford Prison Experiment‚ which was a psychological experiment that determined the roles of members in a society that became a fiasco (“Philip G. Zimbardo” 1). The experiment left emotional and mental scars on mock-prisoner lives. The Stanford Prison Experiment (SPE) illustrates the way a person changes when a label and power is all of a sudden given to hoax guards in order to control fraud prisoners. The experiment had a unit of people willing to help the study (“On
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