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PDF Lab 1: Electrostatics - University of Michigan This laboratory activity provides the opportunity to investigate the concepts of static electricity, electrical force, charge, and polarization. 2. Electrostatic Lab [1] Purpose: To determine the charge and charge distribution on insulators charged by the triboelectric effects and conductors charged by an Electrostatic Voltage Source. PDF Electrostatics Name - University of Colorado Colorado Springs Write what you think is happening. Follow has been fossilized). Record all measurements in table 1.1. The plate acquires an excess of positive charge (since electrons have left this once 4 Reflect on your answer to #2, write down how your thinking has changed. Have a class The experiment that was conducted to prove my theory started by getting all the negative charges Explain how thes InstructionsIn a two-page paper, identify the physics principles contained within the following scenario. When you rub a ruler with different materials, it can cause it to gain or lose static electricity depending on its electrical conductivity. Enter the email address associated with your account, and we will email you a link to reset your password. Some materials will each other. If a neutral material is placed inside a weak electric field, it will not experience a net force, because it contains an equal number of positive and negative charges. Payment is made only after you have completed your 1-on-1 session and are satisfied with your session. USW00094728 Estimating the charge of one . Conclusion general unknown metal objective the projectile motion are many concepts of a lab report conclusion. The difference between these two measurements, plus the diameter of one of the balls, is the distance \(r\) between their centers. Physics 2 Static Electricity Lab Report University The University of Texas Rio Grande Valley Course General Physics II (PHYS1402) Uploaded by Amanda Joy Academic year2020/2021 Helpful? Thus, the positive charge is attracted to the rod more strongly than the negative charge is repelled, and there is an overall net attraction. This lab can be done with different materials found at home. If you listen to a radio, then you are using Maxwell's research. USW00094728 Touch his finger to the door knob to show grounding. There is a tall box containing a hanging pith ball covered with a conducting surface, and similar pith balls on sliding blocks. The balls will share their charge, and half the charge will remain on the first ball (assuming the balls are the same size). Electrostatics 1991, - B. C. O'Neill 1991 The Eighth International Conference on Electrostatics organized by the Static Electrification Group of The Institute of Physics, was held at the University of Oxford When the balloon has been rubbed enough times to gain a sufficient negative charge, it will be attracted to the wall. State Whether Your Experiment Succeeded. : an American History (Eric Foner), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. This lab was divided into two major parts namely part 1 were you will verify Ohm's law by developing a variation of voltage (V) against current (I . the positive charges of the sweater instead of each other. Critique the lab and describe opportunities for further / future work. Describe potential sources of error (don't say human error). Record the observations in your notes. surface. The force triangle of Figure 10 gives, \begin{eqnarray} \tan\phi &=& F/mg, \end{eqnarray}, while the physical triangle of the hanging ball gives, \begin{eqnarray} \sin\phi &=& d/L. In a metal, a charge can move freely and stay on the surface. Move the plate away from the electroscope, and record what happens with the electroscope needle. Figure 2 shows a Van de Graaff generator on the left and also shows some of the equipment that will be used with it during the lab. Objects of the same electric charge repel, and objects of opposite charges attract. As a result, like charges repel each other and unlike charges attract each other. much stronger repulsion than when the non-sticky sides face each other. Electrons will actually move along this path to the ground. Not all steps have observations to record. Put the sliding ball in, and make trial measurements of the inside edge of the sliding ball and the inside edge of the hanging ball. Lab Explained: Current in Simple DC Circuit | SchoolWorkHelper Sweater will become electron deficient thus, making it have more positive charges. Electrical Engineering Lab Reports - The WAC Clearinghouse Astronomy Lab due. Question 2: What do you think will happen when the balloon is moved closer to the wall? To investigate the electrostatic interaction between various objects. repel, and objects of opposite charges attract. 1. I tried to put the two balloons together, but they kept moving away from each other. (Do not confuse electrical polarization with the polarization of light, which is an entirely different phenomenon.). separated (positive on one side, negative on the other). induction, and conduction INTRODUCTION: In this activity we will use very simple objects to investigate electric charge. If they are charged differently, they show attraction. The title should indicate what the lab report is about. Electrostatic Lab Investigation #1: Materials: - fur - plastic rod -wool - balloon - electroscope Procedure: 1. At this point electrons will flow between the electroscope and the ground, giving the electroscope an overall charge. Electrochemistry Lab Report Conclusion - uniport.edu.ng illustrates the direction of the field in a positive and negative charge. If the humidity is fairly low on the day of your lab, the experiments will proceed easily. 4 1 m 24 V 16 V/m This part uses the Charges and Fields simulation from PhET Interactive Simulations, Learning Goals: Students will be able to describe and draw models for common static Values of Thickness 2. move? They were attracted to Surprisingly, the exact physics of the process of charging by friction is poorly understood. With the charged object still held above the plate, the electroscope is touched. it should be brief, start with a key word, and indicate the nature of the experiment. with sharing and discussing. remained. c. Determine the relationship between amount of charge and the strength of the electric field Please help with lab report discussion and conclusion. \end{eqnarray}. We say that the rod has induced polarization in the insulator, but its net charge is still zero. same rule applies that similar charges will repel each other and opposite charges Question: Lab 1: ELECTROSTATICS PURPOSE: To understand the behavior of charged objects and the process of charging by rubbing. Repeat the procedure if necessary, pushing the sliding ball up until it touches the hanging ball. If the cover sheet already has a title then use it as is. 1. At the bottom of the rod, very thin gold leaves were folded over hanging down, or perhaps a gold leaf hung next to a fixed vane. The experiment used a method known as titration to determine the amount of acetic acid in vinegar by percentage mass. Step 5: Add a third and . A chemical equilibrium is a state at which the rates of two opposing chemical (a)If 375J of heat are absorbed by the system, and it has 425 cal of work done by it, compute the change in the internal e What are some of the issues that we are have with global warming? (You may feel a slight shock.). Experiment Title: Chemical Equilibrium and Le Chateliers Principle. balloon. sweater so that it is able to collect electrons, then once you place the balloon near the wall Is there any difference in the behavior of the needle compared to the results in procedure 6? Number of Electrostatics experiment Apparatus Faraday used in the experiment: a metal pail (A)is supported on a wooden stool (B)to insulate it from the ground. Static Electricity Evaporation Dissolving The three methods will be compared at the end of this lab report. The fundamental concept in electrostatics is electrical charge. This is explained by the like charges repel principle. For this experiment, I got the negative charges from the sweater for both balloons. Lab Report 2, Measurements, Physics Lab 1 - Google Docs The electric field surrounding a charged object gets weaker with distance, the object This experiment was divided in four steps to find the electrical conductivity of covalent and ionic solutions. where r is the distance between the two charges and k is called the proportionality constant and is equal to 9 x 109 N.m2/C2 . 4.Ask Reflect on your answer to #2, write down how your thinking has changed. Have a class discussion. tapes are beginning to lose their charge, you can recharge them by repeating the preliminary set-up. Repeat steps 1. Two particles of the same charge exert a repulsive force on each other, and two particles of opposite charge exert an attractive force on each other. The flow of direct current in a circuit is only possible when the circuit is closed, however, if the circuit is open, the flow of current stops. Elcora Advanced Materials Corp Provides 2023 Update earth. same between the two charges. then explore to develop your own ideas about electrical charge. Rub the rough plastic rod with cat's fur, and bring this rod near the lucite rod in the stirrup. Instead, when you touch the metal plate, electrons from your body (attracted by the positive lucite plate) flow onto the metal plate. Coordinate a broad array of scientific expertise: - Manages multiple projects within scope/budget/schedule . Devise and execute an experiment to verify the dependence of the Coulomb force on the value of one of the charges. When objects are rubbed against each other they acquire electric charge. Keep the rod in position. Step 2: Note down the reading on the ammeter and the voltage of the battery. the positive charge would pull Lab 8 - 740 Words | Studymode However, it is known that the making and breaking of contact between the two materials transfers the charge. Create a portfolio of projectile motion sensor and experiments. KCL states that the current entering a node is equal to the current leaving it. Typically, lab reports present data, discuss results, and provide conclusions. Questions are posted anonymously and can be made 100% private. To understand the response of the electroscope when a charged rod is brought near, so that the electrical charges on the rod interact with charges already present in the electroscope. Begin rubbing it with the fur. In this section, you charged the lucite plate by rubbing it at the beginning, and were then able to charge the metal plate repeatedly. Record and explain your results. electricity concepts. The word electricity comes from the Greek word electron which means amber (a tree resin that has been fossilized). positive charge, the field is directed outward from the charge (figure 1a). Using Coulombs law, we can explore the effect of the distance, between two charged particles, on the force between them. Arrange the objects in two categories according to their cha. Electric charge comes in two forms: positive and negative. When you are asked to write your observations, please do so in a clear, complete manner. If not then add a title. 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Charge the lucite rod by rubbing it with silk. The arrows would be opposite to what the picture displays. Step 3: Add an extra bulb into the circuit loop. Lab 1: Electrostatics Introduction: This experiment is intended to give you some experience with, and experimental verification of, some of the basic principles of electrostatics you have been introduced to in lecture. Determine the relationship between distance and the strength of the electric field around a charged body. and protons carry positive charge. i. separated (positive on one side, negative on the other). For a negative charge, where r is the distance between the two charges and k is called the proportionality constant and is They are composed of atoms that consist of negatively charged electrons moving in quantum motion around a positively charged nucleus. 4. (That is, we want to show that the force is proportional to one of the charges.) different fabrics, such as cotton, silk and wool A. Electric Circuits 1 lab report - SlideShare The study of the Coulomb forces among arrangements of stationary charged particles is called electrostatics. This USB port seemed to have very high amperage, meaning it charged her phone quickly. Determine how different objects interact through the electrostatic force. Finally, consider the different concepts in which James Clerk Maxwell did research, and give an example of one of these concepts in use in your life. electrochemistry-lab-report-conclusion 2/5 Downloaded from uniport.edu.ng on March 3, 2023 by guest reaching down even to the molecular level. If the experiments are difficult on the first week of the electrostatics lab, they will be left up so you can try some of them with the Van de Graaff experiments in the following lab. Cross), Forecasting, Time Series, and Regression (Richard T. O'Connell; Anne B. Koehler), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward). Murtala Adogi Mohammed Ph.D. on LinkedIn: Building Institutions for SHOW ALL CHARGES and ask the students to write observations and include drawings and Essay Example on Electrical Conductivity Lab. Your eye is now perpendicular to the scale, and you can read off the position. There were four unknown solutes A, B and C. Each had a specific weight and was dissolved in a certain amount of solute to form either the covalent or ionic solution. Place the metal plate on the center of the lucite plate, and touch it with your finger. Recharge the metal plate, and actually touch it to the top of the electroscope. Figure 11 below shows the situation where your eye is still too high and to the right. Touch his finger to the door knob to show of charge. The material hockey puck but they are on a high friction surface, so they stay in place allowing for electrostatics - Encyclopedia Britannica | Britannica the source of this attraction is due to the presence of static electric cha. When the air is humid, a thin, invisible film of water forms on all surfaces, particularly on the surfaces of the insulators in the experiment. Both the negative and positive charges have the same pull/push strength that can affect different charges in the same exact place, nothing would happen because they cancel out. This new feature enables different reading modes for our document viewer. You can stack charges on top of one another To conduct this experiment, I first filled him up with a lot of negative charges. Charged particles exert electrical and magnetic forces on one another, but if the charges are stationary, the mutual force is very simple in form and is given by Coulomb's Law: \begin{eqnarray} F_{\textrm{E}} &=& kqQ/r^2, \end{eqnarray}. the field is directed inward towards the charge (figure 1b). You can do this with the iii. In this lab report, three methods of separating salt and pepper from each other are tested. The hanging ball should be at the same height as the sliding ball (i.e., the top of the mirrored scale should pass behind the center of the hanging pith ball, as in Figure 12 below). Our tutors are highly qualified and vetted. If this is the case, you can try again next week. The influence of insulators and conductors was also observed during the experiment as well as ways to charge static electric charges. Typically, after charging, the needle might be at 80. c. What do you think would happen if you use 2 charges instead of one to make the puck Record the results your notes. Entertainment & Pop Culture; Geography & Travel; Health & Medicine; Lifestyles & Social Issues; Literature; Philosophy & Religion; Politics, Law & Government PDF Capacitors And Electrostatics Lab Report Conclusion [PDF] InstructionsIn a two-page paper, identify the physics principles contained within the following scenario. Recharge the lucite rod with silk. If the humidity is high, as it is sometimes in the summer, the experiments are more difficult, and some may be impossible. Does anything need to be held constant? If the electroscope needle falls to 0 in a few minutes, the heat lamp will help in the experiments below. The Electrostatics Lab Report Conclusion is universally compatible next any devices to read. negative charges affect the puck when displayed in the hockey on the wall it will stay up and attached to it. Surrounding a charge there is an invisible electric field which gets weaker the farther away one gets from the charge. Our verified tutors can answer all questions, from basicmathto advanced rocket science! Investigate to check your answers from #2 and #3. The arrows on the puck are illustrating how both the positive and However, if a neutral object is placed inside a strong electric field, the material may become polarized. 2 1 m 12 V 8 V/m (The heat lamp shining on the equipment may improve its operation.). use two of the same ones exactly opposite to each other, they would also cancel out and the puck The hanging ball should be repelled strongly. the run button on the upper tool bar. Collect data by turning on Values & drag in the Tape Measure like in this. School. Bring the metal to within 2 cm of your knuckle, and then slowly closer until a (painless) spark jumps. The direction of this force is determined by the sign of the charges: like charges repel and unlike charges attract and acts along the line between the two point charges. Inside a polarized Repeat the demo using the sim with the charges on. the positive charge would pull and the negative charge would push. Different materials have different desire for electrons; this is called electronegativity. Recharge the metal plate by placing it back on the lucite, touching the lucite, and then lifting the plate off with its insulating handle. User Generated. attachment_1. First, we observing what happens. charge is produced because some electrons are transferred from one object to the other. For example, if you charge a balloon by rubbing it on your hair, it can stick to a neutral Lift off the metal plate by its insulating handle, and touch it carefully to the ball on the left sliding block. Lab Report #2 for the Electric Circuits 1 course. Slide the block into the Coulomb apparatus without touching the sides of the box with the ball. A modern electroscope such as the one used in your experiments consists of a fixed insulated vane, to which is attached a delicately balanced movable vane or needle. of Energy (DoE) report found - with "low confidence" - that COVID likely accidentally leaked out of a lab in China. However, if a neutral object In an electric field, the system can be repulsive or attractive, whereas in a gravitational field, the systems are just attractive in accordance to its specific mass in its region. You must use appropriate significant figures and scientific notation in your answers. Discuss the methods used. This is an intro-level engineering lab report. Washington DC-Baltimore Area. If writing by hand, write clearly, legibly, and neatly so that anyone, especially your TA, can read it easily. 2. Lab 1 - Electric Field and Electric Potential Introduction Physicists use the concept of a field to explain the interaction of particles or bodies through space, i.e., the "action-at-a-distance" force between two bodies that are not in physical contact.The earth modifies the surrounding space such that any body with mass, such as the moon, is attracted to it. slightly electrocuted. In this simulation, a little different model is used. ii. The metal plate does not pick up this positive charge, even though it rests on the lucite. the negative charge to pull the positive puck. Coulombs Law: https://phet.colorado.edu/sims/html/coulombs-law/latest/coulombs-law_en.html. B. Once you rub the balloon to the sweater, it gathers electrons so that once you place the balloon The little yellow E field sensors are like the hockey puck but they are on a high friction surface, so they stay in place allowing for measurements. AMERICAN UNIVERSITY OF SCIENCE & TECHNOLOGY FACULTY OF ENGINEERING DEPARTMENT OF COMPUTER AND COMMUNICATIONS ENGINEERING CIRCUIT ANALYSIS 1 LAB CCE 201L Report # 2 DMM-Power Supplies-Soldering Techniques-Making PCBs Prepared by Daniel Khazaal Presented to Dr. Nashaat El Halabi February 26, 2016 Achrafieh Campus The conductor has been polarized, and will now be attracted to the charged rod. Separate Salt and Pepper with Static Electricity Introduction: Static electricity is the build-up of electrical charges on the surface of an object or material.