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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Overview of Research Methods * Quantitative Research: translates the social world into numbers which can be studied mathematically * Qualitative Research: Uses non-numerical data like texts‚ interviews‚ photos and recordings to help understand social life The Scientific Approach * The Scientific Method—a procedure for acquiring knowledge that emphasizes collecting data through observation and experiment. * Most sociologists believe that they should not allow their personal beliefs
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Physical Chemistry CHM2330 Experiment F- Raoult ’s Law Experiment By: Sanah Assaad Student Number: 5267864 Partner: Jihad Arafa T.A: Didier University of Ottawa March 25‚ 2010 Objective: The purpose of this experiment is to study the total vapour pressure of ideal or non-ideal mixtures of two volatile liquids as a function of chemical composition. Introduction: For ideal mixtures of volatile liquids the vapour pressure of any given mixture may be obtained by applying Raoult
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Experiment in Physics Lab Report Renelle L. Gapay Department of Physics Isabela State University-Ilagan Campus‚ Calamagui 2nd‚ City of Ilgan‚ Isabela Ellenergapay_23@yahoo.com Abstract In this experiment you can prove that electric charges can produce by using only a balloon and pieces of papers you can understand further static electricity and charges. And how it is produced. Introduction Have you ever wondered why rubbing a balloon make pieces of paper attract with it? The effect
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Title : The movement of substances across a semi permeable membrane Objective : To study the movement of substances across a semi permeable membrane Problem statement : What factor influences the diffusion of substances through a semi permeable membrane? Hypothesis : The diffusion of molecules across a semi permeable membrane is based on the size of the molecule Variables: a) Manipulated : Size of solute molecules b) Responding : Colour of solution c) Fixed : Temperature and time
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After the TLC was placed inside a UV chromatography box‚ it appears that the sample analgesic contains D‚ which is mefenamic acid. Keywords: Chromatography‚ Pigments‚ Analgesics‚ TLC Results and discussion Thin layer chromatography is a useful method of quickly determining the main active ingredients of commercial analgesics containing aspirin (A)‚ acetaminophen (B)‚ caffeine (C) and mefenamic acid (D). Thin‑layer chromatography involves the same principles as column chromatography‚ it also is
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In this essay the concepts of empiricism and empirical methods and their use in geography will be critically discussed. The main points that will be discussed include the origins of empiricism‚ what empiricism means‚ why empiricism might be useful‚ what empirical methods are‚ the advantages and disadvantages of empirical methods‚ how they are applied in geography including examples and the benefits of applying these in geography. Starting with the origins of empiricism‚ Aristotle was the first
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of the consequences of excessive drinking. After connecting with her‚ I wanted to know if alcohol concentration in spirits would affect the cells in the body. Thus‚ I decided to test my theory by adapting a class beetroot experiment to my investigation. The aim of this experiment is to investigate the effect of alcohol concentration on a biotic cell membrane. The human body cannot live long with damaged cells because they are the building blocks of life. Cell membranes are phospholipid bilayers meaning
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| The effect of salinity on osmosis of solanum tuberosum L.(potatoes) | Biology HL Internal Assessment – Year 10 | | Teresa Nguyen | | Table of Contents 1 DESIGN 2 1.1 Defining the problem 2 FOCUS QUESTION 2 HYPOTHESIS 2 BACKGROUND INFORMATION 2 INVESTIGATION VARIABLES 3 1.2 Controlling Variables 3 TREATMENT OF THE CONTROLLED VARIABLES 3 CONTROL EXPERIMENT 4 1.3 Experimental Method 4 MATERIALS 4 RISK ASSESSMENT 5 METHOD 5 2 DATA COLLECTION and PROCESSING 7 2.1 Recording Raw
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Scientific Method Study of Plants ****** Biology 100 ***** ****** The Scientific Method is a series of steps used to basically form an opinion and test that opinion. The method steps include‚ observation‚ research‚ creating an educated guess‚ or hypothesis‚ testing that hypothesis‚ analyzing the test results‚ and recording the results as true or untrue. If testing of the hypothesis results in disproving it‚ the steps will begin again with a new hypothesis
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