Wissam Bardouh HSC BIOLOGY ASSESSMENT TASK 1 MAINTAINING A BALANCE TASK: OPEN-ENDED INVESTIGATION Our task is to plan‚ choose equipment and perform a first hand investigation to demonstrate the effect of dissolved carbon dioxide on the pH of water. DUE DATE: 21/11/07 CONDUCTOR: Wissam Bardouh EFFECT OF DISSOLVED CARBON DIOXIDE (CO2) ON PH OF WATER Introduction: ((Carbon Dioxide is a greenhouse gas. It is everywhere ranging from our bodies to the atmosphere. Carbon dioxide is produced in living
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Areas of Specialization Number Subjects of study in psychology Areas of specialization in psychology (match with below options) Definition and key points of this specialization (be sure to use professional sources) Rationale (reason why you matched this subject of study with this specialization in psychology) Possible research method of study (experimental‚ correlational‚ observational‚ case study‚ interview) and why this one may fit the best 1 Studying the causes of aggression in reaction
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This part of the experiment yielded an exothermic reaction. The purpose was to calculate the specific heat capacity and molar mass of the zinc metal. The specific heat capacity was found to be 0.197 J/g °C with a percent error of -49.5%. The molar mass was found to be 127 g/mol with a percent error of 94.2%. Possible sources of error inherent to this segment of the experiment were the fact that when the temperature of the solution was being measured
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COST-VOLUMEPROFIT ANALYSIS Julie E. Colandog A systematic examination of the relationship among cost‚ cost driver or level of activity (volume)‚ and Sales Less: Variable Costs Contribution Margin Less: Fixed Costs Net Profit xxxx xxxx xxxx xxxx xxxx CONTRIBUTION MARGIN INCOME STATEMENT e s Sa l Total Cost Break-even point Fixed Cost Break-even point is a condition where total revenue equals total cost and profit is equal to zero BREAK-EVEN POINT Break-even point (pesos) = Total Fixed
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EXPERIMENT 201: WORK‚ ENERGY AND POWER John Michael A. Ramos‚ Phy11l/A5 Abstract The essential conditions to be satisfied for work to be done are: Some force must act on the object. The point of application of force must move in the direction of force. W = F x s. SI unit of work is joule. Energy is the capacity to do work. The two types of mechanical energy are kinetic energy and potential energy. Kinetic energy is the energy possessed by an object by virtue of its motion. Potential energy is
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depolarization and action potential differ because are excitable cells that communicate by transmitting electrical impulses that are capable of producing rapid electrical signals and depolarization in the interior surface of the membrane which becomes less negative and the exterior surface becomes less positive. Additionally‚ when depolarization reaches a certain threshold‚ an action potential is initiated and the polarity of the membrane reverses. 4. What is the difference between membrane irritability
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The aim of the experiment was to examine the effects of consuming lactate before and during a prolonged exercise. The data shows that the consumption of the lactate actually did work and the performance of the subject was better than the previous three experiments of dieting. This was due to the lactate that was consumed in the CytoMax. Azevedo‚ Tietz‚ Two-Feathers‚ Paull‚ and Chapman (2007) state that CytoMax contains polylactate which speeds up the delivery of substrates and is thought to help
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Explain each of the areas of learning and development and how these are interdependent. Personal social and emotional has three aspects‚ making relationships‚ managing feelings and behaviour and self-confidence and self-awareness. This area is all about the child’s relationships with other people and themselves. Children need to develop relationship with the people around the for example the children they play with and come into contact with. The staff that work in that room and their family members
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Therefore considerable testing and consideration should be placed on aggregate type and size to ensure an adequate concrete mix. Two tests have been performed to establish the properties of the aggregates: 1. Compacted bulk density test 2. Sieve analysis II Testing For Compacted Bulk Density Objectives * To determine the specific bulk densities of a range of course‚ fine and mixed aggregates. * To determine the void content of the samples. * From this we can determine
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EXPERIMENT 3: ISENTROPIC EXPANSION PROCESS Objective In order to demonstrate the isentropic expansion process. Introduction Isentropic means no change in entropy. Entropy is a thermodynamic property that is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. In simple terms‚ the measure of the level of disorder in a closed but changing system‚ a system in which energy can only be transferred in one direction from an ordered state to a disordered
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