Tensile Strength Report | Materials in Practice CP4088/CP8011 | By Clinton Chang | Synopsis This experiment is to find out the tensile strength of different plastic materials. The four plastic materials used are General Purpose Polystyrene (GPPS)‚ High Impact Polystyrene (HIPS)‚ High Density Polyethylene (HDPE) and Polypropylene (PP). By using three samples from each plastic material type‚ we are able to obtain the mean tensile strength‚ mean tensile modulus and mean yield strength of each
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Investigation of the factors affecting the period of vibration of a weighted cantilever Introduction The aim of the experiment is to find out how the period T of vibration of a weighted cantilever depends on the vibrating length L. Hypothesis: Assume the relationship between the vibrating period T and vibrating length L is in accord with the equation: T=kLn‚ where k and n are both constant values. According to the hypothesis‚ the vibrating period T and vibrating length L is a linear relationship
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Lab (1): Torsion Test Course Number: EMC 2043 Course Name : Mechanics of Materials Section: Name ID 1 2 3 Torsion Test OBJECTIVES: To carry out a torsion test to destruction in order to determine the following for a steel rod specimen: 1. To compare the experimental shear modulus (modulus of rigidity) with the tabulated values. 2. The maximum shear stress at the limit of proportionality or the proportional limit shear stress‚ 3. The general
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Masses and Springs 1. Spring Constant K1 = F/x1 = (.05kg)(9.8 N/kg) = 9.8 N/m .05m K2 = F/x2 = (.1kg)(9.8 N/kg) = 9.8 N/m .1m K3 = F/x3 = (.25kg)(9.8 N/kg) = 9.8 N/m .25m K avg. = 9.8 N/m 2. Unknown Masses Green: m = kx = 9.8 * .07 = .07kg = 70g g 9.8 Gold: m = kx = 9.8 * .155 = .155kg = 155g g 9.8 Red: m = kx = 9.8 * .3
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Taha Al-Yousif Hooke’s Law Lab Date conducted: September 18th 2013 Partners: Mohammed‚ Liam‚ Ben Nguyen Purpose: The purpose of this experiment is to find the relationship between the stretch of the spring and the attached mass and to verify that this relationship is accurately described by Hook’s Law. Theory: Hooke’s Law states that to extend a spring by an amount (Stretch) from its previous position‚ one needs to add an external force (Mass). Therefore
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RESILIENCE Resilience is the process of adapting well in the face of adversity. (Yitzhak Berman)Children can move beyond trauma in their lives if they are resilient. Children facing trauma within their families and communities can be overwhelmed. Outside help though essential in times of trauma is not sufficient alone. Resilience is an attribute that involves optimism‚ learning from past expereinces‚ and the ability to approach adversity with some problem solving skills. Resiliency
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modes associated with them‚such as symmetric and asymmetric stretches‚bends‚ rocks‚ and tortional modes. For MRZ‚ the C-H stretching Vibrations are observed at 3057‚ 3043‚ 3016 and 2999 cm-1. The asymmetric and symmetric stretching bands of CH2 are observed in the range from 2900 to 2700 cm-1 and this stretching band is mainly coupled with the CH3 stretching vibration. Mirtazapine has only one CH3 group. The C-H stretching vibrations of methyl are observed between 3000 and 2900 cm-1. A methyl group
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Materials Final Review (TESTS I‚ II‚ & III) Part I : Multiple Choice 1) As the temperature of a polymer increases‚ its density a. Increases b. Decreases c. Remains fairly constant 2) Which one of the three polymer types does not involve cross-linking: a. Elastomers b. Thermoplastics c. Thermosets 3) Degree of polymerization is which of the following: a. Average number of mers in the molecule chain b. Proportion of the monomer that has been polymerized c. Sum of the molecule weights of the
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Stress can be tough on you. Throughout children’s lives they have played countless hours of sports that have interfered with schoolwork‚ which obviously is not the certain stress other children can be under but this has created an environment of stress‚ good or bad it doesn’t matter‚ each day children are stressed. For years‚ children would miss school due to sporting events and have a tremendous amount of make up work to do in order to keep up with their grades and on top of that‚ a child’s parents
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Let me first define resilience. It refers to one’s ability to cope with or handle stress and pressure. There are a few reasons why teenagers of this generation tend to be less resilient‚ and one reason is due to the fact teens now are living in the "Strawberry Generation"‚ which simply means that this generation have grown up being overprotected by their parents and in a environment of economic prosperity; in a similar manner how strawberries are grown in protected green houses and command a higher
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