Week #7 Chapter 10 Static and Current Electricity Exercises (p.221) 6. Strictly speaking‚ will a penny be slightly more massive if it has a negative charge or a positive charge? Explain. A negative charge because when it is negatively charged electrons are added to the penny. 17. What is the voltage at the location of a 0.0001 C charge that has an electric potential energy of 0.5 J (both voltage and potential relative to the same reference point)? Potential = energy Charge = 0.5 J / 0.0001
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HG-1 THE HEAT OF FUSION OF ICE Introduction When heat flows into a system there are a number of things that can happen. One result could be a temperature rise. Or‚ the system might even catch fire. A third possibility is a change of state. As you know‚ matter exists in three states (or maybe four‚ the fourth being a plasma)‚ solid‚ liquid and gaseous. At different temperatures‚ the same substance may be in different states. Each state is characterized by the way the interatomic forces act. In solids
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DELTA UNIVERSITY FOR SCIENCE AND TECHNOLOGY FACULTY OF PHARMACY Practical Physics I Fall 2012 [PRACTICAL PHYSICS I] Contents Fall 2012 (1) Fine Measurement Apparatuses --------------------------------------------------------------------------- 2 (2) Determination of the Mechanical Equivalent of Heat (Joule’s Law) by Electrical Method 12 (3) Determination of the Melting Point of a Solid Material ------------------------------------------ 15 (4) Determination of the Specific Gravity
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Introduction The purpose of this experiment is to determine whether a change in mass affects the acceleration of the cart. The independent variable is the mass of the weight and the dependant variable is the acceleration. I do not think there is a control in the experiment because we do not know an absolute result with any of the masses of the weight. Besides‚ if we used 0g as our control‚ the cart won’t even move. Hypothesis Under these conditions I believe that the results shown in the distance
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The Physics of Field Goal Kicking Physics is involved in all of our daily activities. Most of the time‚ however‚ physics is overlooked and never acknowledged. It is important to understand different aspects of physics because physics tells us how and why certain events occur. By definition‚ physics is the search for laws that describe the most fundamental aspects of nature: matter‚ energy‚ force‚ motion‚ heat‚ light‚ and other phenomena. There are many different sectors of physics‚ but we will
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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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Measurements Lab Report Measurements Cassandra M. Murphy Grand Canyon University: Physics 1 Lab September 5‚ 2013 Testable Question: Circular objects; what happens to the circumference as the diameter changes? Hypothesis: As the diameter increases‚ the circumference will increase in a proportional linear way. This is because as the diameter increase‚ the object will as well. Variables: Independent- The diameter of the circular objects. Dependent- The circumference of the
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P ROBLEM WORKBOOK Holt Physics Problem Workbook This workbook contains additional worked-out samples and practice problems for each of the problem types from the Holt Physics text. Contributing Writers Boris M. Korsunsky Physics Instructor Science Department Northfield Mount Hermon School Northfield‚ MA Angela Berenstein Science Writer Urbana‚ IL John Stokes Science Writer Socorro‚ NM Cover Photo: Lawrence Manning/CORBIS Cover Design: Jason Wilson Copyright © by Holt‚ Rinehart
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ABOUT PHYSICS AND SOME MAIN TOPICS: 1. Temperature 2. Heat and thermal heat (energy) 3. Heat capacity 4. Phases of water 5. Expansion 6. Ideal gas 7. Laws of thermodynamics 8. Heat capacity of gas 9. Specific heat capacity TEMPERATURE is a physical quantity that is a measure of hotness and coldness on a numerical scale.[1] It is a measure of the thermal energy per particle of matter or radiation; it is measured by a thermometer‚ which may be calibrated
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surface‚ accelerating because of an unbalanced force. The rate at which an object travels down the slope is dependent upon how tilted the slope is; the greater the tilt of the plane‚ the faster the rate which an object will slide down. Thus‚ if a physics cart is released on at a steep slope‚ the acceleration of the cart is expected to roll down the slope at a faster rate. As shown in figure 1‚ when a cart is released on an inclined plane‚ there’s always two to four forces acting upon the cart – the
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