For reference purposes, according to the convention originally chosen by Benjamin Franklin, the lucite rods rubbed with silk become positively charged, and the rough plastic rods rubbed with cat's fur become negatively charged. Rub Johns foot on the floor to demonstrate charge transfer. Step 2: Note down the reading on the ammeter and the voltage of the battery. Record and explain your results. In order for the balloon to stick to the wall you need to have rubbed the balloon on the gaining electrons now has more electrons and becomes negative. Rub the second lucite rod with silk, and bring it close to the first rod. Abstract: This lab focuses on Newton's second law and Coulomb's law. Charges and FieldsThis part uses the simulation from PhET Interactive Simulations, Learning Goals: Students will be able to describe and draw models for common static electricity concepts. Most electrons will go into the knob and down to the earth. (Theoretically, it should be 2.000, but what does your curve fit produce?). This lab can be done with different materials found at home. When the balloon has been rubbed enough times to gain a sufficient negative charge, it, Wool is a conductive material, which means it readily gives away its electrons. Question: Lab 1: ELECTROSTATICS PURPOSE: To understand the behavior of charged objects and the process of charging by rubbing. Take measurements, and record the diameter of the balls (by sighting on the scale). c. Determine the relationship between amount of charge and the strength of the electric field We are all familiar with the fact that rubbing two materials together for example, a rubber comb on cat fur produces a static charge. will attract each other. 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. It is pretty easy basic calculations, Electricity, Magnetism, and Light Compare/Contrast Paper. For an additional credit of 2 mills, use Excel to fit a power-law curve to the data. and rubbing his foot on the carpet, once he touches the door knob that is metal he is shocked or repel, and objects of opposite charges attract. several objects found around the home made of wood, glass plastic and rubber (The heat lamp shining on the equipment may improve its operation.). From the equation of Electric Field Charge (E=kq/r^2), we substitute our values of E (electric field charge), q (voltage charge), and r (distance) and solve for k. Solving for k, would give us the slope of the line m = k/r^2. Why can you use either a positive charge or a negative charge to move the positively 286 Comments Please sign inor registerto post comments. Their electrons are bound tightly and cannot move. Static The table and graph above shows us the linear relationship between the Electric Field Charge and Voltage. How does the arrow from the positive charge compare and The experiment that was conducted to prove my theory started by getting all the negative charges They are composed of atoms that consist of negatively charged electrons moving in quantum motion around a positively charged nucleus. For this experiment, I got the negative charges from the sweater for both balloons. earth. The presence of the charged object above the plate of the electroscope, induces electrons within the electroscope to move accordingly. Usually, it is possible to calculate the currents and voltages in a circuit by solving a set of equations, the calculations are required to design a safe circuit.and this is one reason why advanced mathematics is so important in the field of electrical engineering. SHOW ALL CHARGES and ask the students to write observations and include drawings and The puck will move horizontally right if both the magnitude and the distance were the same between the two charges. when you rub a balloon on wool, this causes the electrons to move from the wool to the balloon's. I tried to put the two balloons together, but they kept moving away from each other. Electric charge comes in two forms: positive and negative. Rub the lucite rod vigorously with the silk cloth. where \(F_{\textrm{E}}\) is the electrical force between any two stationary charged particles with charges \(q\) and \(Q\) (measured in coulombs), \(r\) is the separation between the charges (measured in meters), and \(k\) is a constant of nature (equal to 9109 Nm2/C2 in SI units). Hit RESET to do this several times. 2. Make sure that they understand that this is commonly called grounding. Time up to five minutes, if necessary. Keep the rod in position. This can happen For this experiment, I got the negative charges from the sweater for both balloons. You do not need to repeat the question. The arrows on the puck are illustrating how both the positive and. Comment in your notes. Nevertheless, a charged object will attract a neutral macroscopic object by the process of electrical polarization. Please write answers direct on the PDF file. Data section includes the provided table; observations are reasonably accurate and the conclusions regarding the charge are consistent with the observations. The hanging ball will be attracted by polarization, as in Section III of this lab. Science. USW00094728 Record the results your notes. The lucite plate is positively charged by being rubbed with silk. After that, I then For your records, you may print out your Excel file with a table and graph of your numerical observations and any other electronic files you have generated. For instance, Maxwell's research led to the development of radio waves. The metal plate does not pick up this positive charge, even though it rests on the lucite. Describe potential sources of error (don't say human error). Explain how thes InstructionsIn a two-page paper, identify the physics principles contained within the following scenario. Set the metal plate aside. 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. The hanging ball should be centered on a line with the sliding balls. Experiment Title: Chemical Equilibrium and Le Chateliers Principle. If the angle \(\phi\) is small, then \(\tan\phi = \sin\phi\), and \(d\) is proportional to \(F\). The side which the tape faces matters. Recharge the metal plate by placing it back on the lucite, touching the lucite, and then lifting the plate off with its insulating handle. move? (That is, we want to show that the force is proportional to one of the charges.) Bring the metal to within 2 cm of your knuckle, and then slowly closer until a (painless) spark jumps. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . Create a portfolio of projectile motion sensor and experiments. For example, if a negatively charged rod is brought close to an isolated, neutral insulator, the electrons in the atoms of the insulator will be pushed slightly away from the negative rod, and the positive nuclei will be attracted slightly toward the negative rod. equal to 9 x 10 9 N 2 /C 2. 4 Pages. Aug 2021 - Dec 20215 months. Repeat steps 1. balloon. Electrons moved from sweater to balloon like predicted. If the humidity is high, as it is sometimes in the summer, the experiments are more difficult, and some may be impossible. By grounding the end of the tube with your fingers, you are providing a pathway for the charges to move. SET thevaluesofq 1 to-7 Candq 2 to10 C. 3. Other materials such as glass are insulators. Conclusions Summarize what you learned in the lab, with specific references to the scientific concept under study which you detailed in the introduction. tapes are beginning to lose their charge, you can recharge them by repeating the preliminary set-up. Your matched tutor provides personalized help according to your question details. clear adhesive tape, Thus, the polarized material will experience a net attractive force. Building Institutions for Results Delivery BIRD Earlier today, Murtala Adogi Mohammed of System Strategy and Policy Lab with Leo The Great Ebenezer, Head Open phet.colorado/sims/html/balloons-and-static-electricity/latest/balloons-and- Studypool is not sponsored or endorsed by any college or university. when two non-conducting materials are rubbed together for example plastic and fur. Both the negative and positive charges have the same pull/push strength that can affect PHY 2 Lynn University Electrostatics Lab Report . Collect data by turning on Values & drag in the Tape Measure like in this. (Refer to the theory section, if necessary.). The old electroscopes consisted of a box or cylinder with a front glass wall so the experimenter could look inside, and an insulating top through which a conducting rod with a ball or disk (called an electrode) on top entered the box. of Physics & Astronomy Modified from: RealTime Physics P. Laws, D. Sokoloff, R. Thornton General Physics Part B and University of VA Physics Labs: S. Thornton Triboelectricity First, you must move some electrons around to produce a net electric charge. Our verified tutors can answer all questions, from basicmathto advanced rocket science! The image shows that the negative charges do repel each other and the positive charges remained. You will be testing the inverse \(r\)-squared dependence of Coulomb's Law with a very simple apparatus. Electrostatics Lab Conclusion: Explain how the balloons are in equilibrium and how this allows us to calculate the electrostatic force. You must use appropriate significant figures and scientific notation in your answers. other (sweater) ends up with a deficiency of electrons and becomes positively charged. A lab report is an account of an experiment and what was discovered during the experiment. The electric field surrounding a charged object gets weaker with distance, the object We are all familiar with the fact that cold, dry days are hot for electrostatics, and we get small shocks after walking across a rug and touching a door knob, or sliding across a car seat and touching the metal of the car door. c. What do you think would happen if you use 2 charges instead of one to make the puck attachment_1. illustrates the direction of the field in a positive and negative charge. Stuck on a homework question? Lab 1 - Electrostatics Lab's goal To investigate the electrostatic interaction between various objects. The USB was universal, providing 5 volts in any country you were in, and a small red LED next to her phone's screen told her the phone was successfully charging. Therefore the balloon material ends up with an excess of electrons and becomes negatively charged, while the other (sweater) ends up with a deficiency of electrons and becomes positively charged. Repeat the procedure until you have experienced several sparks. The presence of the negatively charged balloon above the plate of the electroscope will induce the movement of electrons from the plate of the electroscope to the support and needle of the electroscope. separated (positive on one side, negative on the other). Once you rub the balloon to the sweater, it gathers electrons so that once you place the balloon 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. If they are charged differently, they show attraction. Write what you think is happening. Follow has been fossilized). When a charged object is brought near the electroscope, the gold Objects of the same electric charge Electrons are essentially being transferred from the balloon to the sweater. Usually the lucite needs to be charged only once for the entire experiment. will have a stronger attractive force on its closest charges of opposite sign and a weaker repulsive 438v+3. remain despite the sides the two tape pieces face. The induced current should create a brief flash of light. The reason why you can make a goal without hitting the puck is because we are using electric fields to move the puck. When charge is brought near the top electrode, the movable vane moves outward, being repelled by the fixed vane. During the few days after your assigned lab period: Meet with your lab partners to plot and/or reduce your data, to draw conclusions, and to the group lab report. (Do not confuse electrical polarization with the polarization of light, which is an entirely different phenomenon.). Record the results in your notes. Are you in need of an additional source of income? B. You can stack charges on top of one another Reflect on your answer to #5, write down how your thinking has changed. Have a class Since the rod is an insulator, charge will not flow from all parts of the rod onto the electroscope; you need to touch all parts (except where you are holding it) to the electroscope. In an insulator (a material that does not conduct electricity), a charge cannot move very far (if at all). Not all steps have observations to record. much stronger repulsion than when the non-sticky sides face each other. Record your data in the following table. This film conducts away the charges before they have a chance to build up. Move the plate away from the electroscope, and record what happens with the electroscope needle. Include in the discussion the vocabulary: electric repulsion; compare with charge Practice taking measurements and compare your readings with those of your lab partner until you are sure you can do them accurately. Both the negative and positive charges have the same pull/push strength that can affect the positively charged puck and they are different in the way they affect the puck by either pulling or pushing. The magnitude of the electrostatic force between two-point charges ql and q 2 is given by Coulomb's Make sure that they understand that this is commonly called grounding. of Energy (DoE) report found - with "low confidence" - that COVID likely accidentally leaked out of a lab in China. Inside a polarized Once again, recharge the metal plate. The keynote speech delivered by Carl Sagan played a big r Our tutors provide high quality explanations & answers. different fabrics, such as cotton, silk and wool. Coulomb's Law describes three properties of the electrical force: The force is inversely proportional to the square of the distance between the charges, and is directed along the straight line that connects their centers. The positive charges on the wall will move towards the balloon, while the negative charges will repel against each other. A conductor will carry an electrical current. When charge was transferred to the top, the gold leaves would become charged and repel each other. 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 The lab TA will provide more instruction. Insert your data table and graph from your spreadsheet. Negative charge on the sweater will move on to the balloon. Most materials are electrically neutral they have an equal number of positive and negative charges (thus an equal number of protons and electrons). Coulomb's Law describes three properties of the electrical force: The force is inversely proportional to the square of the distance between the charges, and is directed along the straight line that connects their centers. What is the average distance a spark will jump? When you rub a ruler with different materials, it can cause it to gain or lose static electricity depending on its electrical conductivity. Fold one end to use as a handle. Global warming is one of the most important issues in the world. If the wire or path is subsequently disconnected, the conductor as a whole is left with a net positive charge. Later, other materials were found which exhibited this same behavior. b. Faraday's ice pail experiment is a simple electrostatics experiment performed in 1843 by British scientist Michael Faraday that demonstrates the effect of electrostatic induction on a conducting container. School. Electrostatics Lab Name: Bryan Michel Materials: Styrofoam cups Styrofoam plates PVC Pipe Fur Scotch Tape Procedures: You will be investigating charging object by friction. The conductor has been charged without actually being touched with the charged rod, and its charge is opposite that of the rod. We can observe attraction and repulsion between electrically-charged objects. Question 4: What might happen to the charge on the man when he touches the doorknob? 2 1 m 12 V 8 V/m USW00094728 Consequently, when you rub a balloon on wool, this causes the electrons to move from the wool to the balloon's surface. 1. . Touch his finger to the door knob to show Charge the lucite rod by rubbing it with silk. 562v=0v2) Verify KCL in figure 3 circuit from hardware measurement. ii. Static electricity or Electrostatics David Case: March 6, 2015 Experiment #8 Static Electricity or Electrostatics Objective: To explore the concepts of static electricity and to discover how many types of electrical charges exist and how they interact with each other Materials: Objectives To observe electrical conductivity of substances in various aqueous solutions To determine of the solution is a strong or weak electrolyte To interpret a chemical reaction by observing aqueous solution conductivity. 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}. Some positive charges in the wall will move towards the 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. Determine the relationship between distance and the strength of the electric field around a charged body. Neutral particles do not interact with electrical forces. 1 1 m 6 V 4 V/m Uzbekistan (UK: / z b k s t n, z-,- s t n /, US: / z b k s t n,-s t n /; Uzbek: Ozbekiston / , pronounced [ozbekistn]; Russian: ), officially the Republic of Uzbekistan (Uzbek: Ozbekiston Respublikasi / ), is a doubly landlocked country located in Central . use two of the same ones exactly opposite to each other, they would also cancel out and the puck 54 Comments Please sign inor registerto post comments. KVL states that in a closed loop the sum of the voltages of branches are equal to zero. Open John Travoltage at phet.colorado/en/simulation/john-travoltage Recharge the sliding ball so it produces the maximum force, and experiment with pushing it toward the hanging ball. With the positive charge you can push the positive puck, and on the other hand, you can use the negative charge to pull the positive puck. Wool is a conductive material, which means it readily gives away its electrons. A new classified U.S. Dept. If so, how do you account for the difference? when using the two different charges opposite to each other the puck would Electrostatic Lab Investigation #1: Materials: - fur - plastic rod -wool - balloon - electroscope Procedure: 1. The negatively charged balloon repels the negatively charged electrons, thus forcing them to move downwards. What happens? Electric fields and gravitational fields are alike in the sense that they both act upon a system and are dependent of it. Typically, after charging, the needle might be at 80. Does it matter which side faces which side? Definitely a returning customer. If the electroscope needle falls to 0 in a few minutes, the heat lamp will help in the experiments below. from the sweater then putting it up against the wall once it was filled with the negative charges. Charge one lucite rod by rubbing it vigorously with silk. A. your observation with captured images from the simulation. Describe an experiment and include images from the simulation that supports your answer. Measure all currents, voltages and power readings at same load settings of resistor load cart from step 5. The lab uses an internet application to demonstrate how equal and opposite charges on pith balls create a repulsion force that . If the sticky side of both the tape. These equations will verify this statement: -Vs+Vr1+Vr2=0-5v+1. Introduction Electricity is an essential part of the modern life experience, and as an engineer it is essential to know how it behaves and responds to changes in its trajectory. Course. The polarization of charge in the insulator is small, but now its positive charge is a bit closer to the negative rod, and its negative charge is a bit farther away. Please help with lab report discussion and conclusion. The image shows that the negative charges do repel each other and the positive charges How to write a lab report Every lab report must consist of: 1. Volume 1 covers mechanics, sound, oscillations, and waves. the source of this attraction is due to the presence of static electric charge. Arrange the objects in two categories according to their cha. Description Hi, I need Phy 2 lab report about Electrostatics the data sheet is in the file below. 10 Lab 1: Electrostatics Vanderbilt University, Dept. To investigate the electrostatic interaction between various objects. If you use two of the same charges to move the puck, it would move twice as fast, if you use two The word electricity comes from the Greek word electron which means amber (a tree resin that has been fossilized). The User Generated. HALIFAX, Nova Scotia, March 02, 2023 (GLOBE NEWSWIRE) -- ELCORA ADVANCED MATERIALS CORP. (TSX.V:ERA | Frankfurt:ELM | OTCQB - ECORF), (the "Company" or "Elcora . Record your observations in writing either on the computer (e.g., in Microsoft Word) or on your own paper. The reason of why electrolytes or ionic compounds are supposed to conduct electricity is because of the charge of the molecule, ionic . So the balloons did move away from made him touch the doorknob and all of the negative charges followed through the door. the positive charge would pull
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