have chosen to talk to you about friction. Friction is the force between two objects in contact with each other‚ making it a contact force. It causes moving objects to slow down. Air resistance is a type of friction. Friction is an important force in our lives. We rely on friction in many ways. An athlete usually wears shoes which provide him/her with a greater friction between the shoe and the surface. We rely on friction as an important aspect of motion. Friction can be a very useful force because
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Experiment 5 Series and Parallel Pump Objectives To demonstrate the principle operating characteristics of centrifugal pump in series‚ parallel or single pump operation. To determine the pump characteristic curves of pump in series and parallel configuration and single operation. To determine the pump power. Overview A pump can serve to move liquid‚ as in a cross country pipeline‚ to lift liquid as from a well or to the top of a tall building; or to put fluid under pressure as in a
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Friction Peter Jeschofnig‚ Ph.D. Version 42-0262-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information
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Daphnia Experiment Report 1. Introduction Caffeine is found in many plant species‚ where it acts as a natural pesticide. It is found most commonly in cocoa‚ tea and coffee‚ but is also artificially added to some soft drinks such as cola to act as a flavour enhancer. When consumed by humans‚ caffeine works as a stimulant causing amounts of released neurotransmitters to be increased. High use of caffeine has been related with raised blood pressure‚ restlessness‚ insomnia and anxiety which‚ in
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Lab:Measurement Error (Bounds) Purpose The purpose of this experiment was to understand and recognize that errors do occur when doing experiments and making measurements. With this lab we had to understand how to analyze the data using measurement bounds. Theory: In this experiment we were to find the density of the wood we are measuring by using the method of upper bound and lower bound. Density is a physical property of matter. Every element and compound has its very own unique density
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1. Identify each of the following statements as either true or false. If false‚ explain why. (a) Viscosity is a measure of how easily a fluid flows. (b) Although important‚ fluids are not essential to many living things. (c) A meniscus forms when water particles adhere to the sides of their container. (d) Buoyancy‚ like water pressure‚ acts in all directions. 2. Describe the relationship between mass‚ volume‚ and density of matter. 3. Use the particle theory to explain the differences between
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A1 Studying force of friction Objective To investigate the effect on friction of the following factors: 1. normal force that presses the two surfaces together 2. materials that the two surfaces are made of 3. area in contact of the two surfaces Apparatus Rectangular wooden block Wooden plank Glass plate Plastic plate String Scissors Jack Spring balance Electronic balance Half-meter rule Retort stand and clamp G-clamp Trolley[pic]2 Standard weights (100g)[pic]5 Theory
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Experiment 1 Lab Report Title: Determination of caffeine content in tea bag sample by UV spectroscopic method Higher diploma in Pharmaceutical Science-Year 1 AS114202-1TM Fundamental Analytical Chemistry ASD3008 Lab Group 6: Ng Chung Hin 130439161 Wong Tin Yau Tony 130252529 Ng Wai Kin 130031247 Tam Chun Kit 130191034 Mau Kwan Yiu 130395762 Date of Experiment: 7/3/2014 Content Introduction Objectives Methodology Results Discussion Conclusions References Introduction
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Friction Page 1 Lab: Friction William Morris Leo Hayes High School Friction Page 2 Purpose: To investigate the coefficient of friction for a given surface and the effects that factors such as weight‚ surface area and changes to the surface have on the coefficient of friction. Hypothesis: The smaller the amount of normal force (weight)‚ the less friction created and the least surface area and the greaser the surface the less friction is created. With
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Percent Error occurs due to many factors. In this lab by the graph I can state that there was a 100% error in all three unknown substances‚ Pure Leaf Lemon Tea‚ Sprite‚ and Tree Ripe Lemonade. This could be a result of not having properly zeroed the scale or the scale glitching when it came to zeroing it‚ which would have added extra mass and skewed the results. Another factor that could have resulted in a high percent error would have been the scale itself glitching which would have caused the wrong
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