conducted on 13th August 2008 in Machines Dynamics Laboratory. The experiment was conducted in groups of four‚ and was supervised by lecturer Mr. Mohd Azahari Johan. Conducting this experiment is for fulfilling the requirements of Applied Mechanics Lab (MEC 424). A pendulum is defined as body so suspended from a fixed point as to swing freely to and from by the alternate action of gravity and momentum. It is used to regulate the movements of clockwork and other machinery. Therefore‚ a compound
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the period of oscillations to the length of the pendulum.Sources of error for this procedure included precision in both length and time measurement tools‚ reaction time of the stopwatch holder‚ and the accuracy of the stopwatch with respect to the lab atomic clock. The final result of g takes into account the correction for the error introduced using the approximation. There are opportunities to correct for the effects of mass distribution‚ air buoyancy and damping‚ and string stretching[1]. Our results
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the prepare slides of different types of epithelial tissues. Observe each tissue‚ by using picture handout given in class with examples of each epithelial tissue. Compare what is seen in the microscope with the example given in the packet. While observing each slides prepare a labeled sketch of a representative portion of the tissue seen in the microscope and label each part of the cell seen. Results: Discussion: The first tissue studied was the simple squamous epithelium‚ which looked like
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# Now You See It – Copper Cycle Lab The purpose of the lab is to discover what happens when someone executes a series of procedures‚ beginning with copper metal. What is done | What is observed | 1. Started with copper‚ Cu (s). | reddish‚ brownish‚ orange-ish‚ powder-like | 2. Added nitric acid‚ HNO3 (aq). | acid turns blue and smells like chlorine. | 3. Added water‚ H2O (l). | stayed the same | 4. Added sodium hydroxide‚ NaOH (aq). | changed consistency‚ gel-like | 5. Heated the
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Roy Levin Bio 11 Lab Dr.Izquierdo Analysis of Macromolecules in Tissue Homogenates of Bos taurusMaterials and Methods The homogenates provided were made by homogenizing tissues in a sucrose phosphate buffer in a 1:20 ratio. The protein concentration in bovine cells was measured by diluting the homogenate with a 1:5 ratio; 50 microliters of homogenate and 200 microliters of water. Then 5 known protein concentration samples which were 0.4‚ 0.8‚ 1.2‚ 1.6‚ 2.0 mg/ml of bovine serum were used to
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Percent of original sample not recovered 100% - ( 32.13% +65.504%) = 2.37% Comments concerning appearance and purity: The salicylic acid’s appearance are pure‚ fine‚ off-white needles. The copper sulfate pentahydrate ’s appearance first observing are contaminated‚ white coat outside blue crystals. Prelab question: 1. Explain briefly why CuSO4 is more soluble in water than in an organic (nonpolar)
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Project Proposal: Blood Bank Management System Student Names : Release No. Date : Revision Description Introduction: Blood Bank is one of the important departments. It plays an important role with blood collection and issue of blood/components. Its activities include blood donations‚ blood grouping‚ antibody screening‚ antibody identification‚ cross matching‚ blood infectious tests‚ component preparation‚ issuing compatible blood and Blood components etc. Blood Bank Module
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Lab Report Microbiology Introduction Bacteria can be found almost anywhere. For human life‚ some help us‚ some hurt us‚ and others are neutral. It is now known that good bacteria‚ or normal microflora‚ can reach 1014 microbial cells. This is far more than the 1013 cells that make up the human body (Tannock‚ 1995). The total number of bacteria on Earth is estimated to be around 4-6 x 1030 (Horner-Devine‚ 2004). It is important to know the extent of bacteria‚ how they live‚ and how they are
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Bacteria and Toothpaste: The Effect of Toothpaste on Bacteria Table of Contents Page 1: Title Page Page 2: Table of Contents Page 3: Introduction Page 4 – 6: Research Page 7 – 10: Lab Report Page 11: Conclusion Page 12: References Bacteria and Toothpaste: The Effect of Toothpaste on Bacteria My project is on Toothpaste and Bacteria‚ and how bacteria is effected by toothpaste. I found this project very interesting because it was an opportunity
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Wave Nature of Light Objective: The purpose of this lab is to investigate interference‚ otherwise known as the diffraction of light. A beam of light acts a wave‚ and we are able to use equations so calculate the wavelength of the light used. The diffraction of a straight edge demonstrates that light waves bend around straight edges‚ allowing light to enter an area of shadow. When waves are superposed‚ they reinforce each other when crests are in phase and cancel out when they are not in phase
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