electrostatics lab report conclusion

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. In its present form, the electrophorus consists of a lucite plate on which rests a flat metal plate with an insulating handle. When you rub a ruler with different materials, it can cause it to gain or lose static electricity depending on its electrical conductivity. There is a tall box containing a hanging pith ball covered with a conducting surface, and similar pith balls on sliding blocks. Electrons carry negative charge Include in the discussion the vocabulary: charge transfer and electric attraction. Electric field lines are typically drawn to visualize the field. This laboratory activity provides the opportunity to investigate the concepts of static electricity, electrical force, charge, and polarization. Conclusion/Discussion 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. The electric field surrounding a charged object gets weaker with distance, the object Electric field lines are typically drawn to visualize the field. 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. 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. The experiment that was conducted to prove my theory started by getting all the negative charges 12 Test Bank, Chapter 01 - Fundamentals of Nursing 9th edition - test bank, Kami Export - Jacob Wilson - Copy of Independent and Dependent Variables Scenarios - Google Docs, Kami Export - Athan Rassekhi - Unit 1 The Living World AP Exam Review, Greek god program by alex eubank pdf free, Kaugnayan ng panitikan sa larangan ng Pilipinas, EDUC 327 The Teacher and The School Curriculum, Leadership class , week 3 executive summary, I am doing my essay on the Ted Talk titaled How One Photo Captured a Humanitie Crisis https, School-Plan - School Plan of San Juan Integrated School, SEC-502-RS-Dispositions Self-Assessment Survey T3 (1), Techniques DE Separation ET Analyse EN Biochimi 1, The University of Texas Rio Grande Valley. Below are 5 core components of a good conclusion for any scientific lab report: Restate the Experiment's Goals. Please write answers direct on the PDF file. to make the amount of charge vary. Fold one end to use as a handle. spreadsheet. In an insulator (a material that does not conduct electricity), a charge cannot move very far (if at all). Equipment: Faraday Pail setup including ground plane and wire cage, charge sensor, two conducting spheres, high voltage electrostatic voltage source, computer with the run button on the upper tool bar. This film conducts away the charges before they have a chance to build up. They are classified as Nan-electrolyte compounds. The direction of this force is determined by the sign of the charges: like charges repel and unlike Charge the metal plate of the electrophorus in the usual way by rubbing the plastic base with silk, placing the metal plate on the base, and touching it with your finger. 990 Words. Move the sliding ball in steps of 0.5 cm for each new measurement. The lab helped explore concepts of static electricity and discover how many types of electrical charges exist and how they interact with each other. Neutral particles do not interact with electrical forces. The magnitude of the electrostatic force between two-point charges ql and q 2 is given by Coulomb's made him touch the doorknob and all of the negative charges followed through the door. Write how the results of your What do you predict for the answer? Include in the discussion the vocabulary: charge transfer and electric attraction. General Physics II Lab (PHYS-2021) Experiment ELEC-1: Electrostatic Charges Objective: InPartAoftoday'sexperimentyouwilldemonstratethelawofconservationofchargeaswell This lab can be done with different materials found at home. Questions are posted anonymously and can be made 100% private. Electric charge comes in two forms: positive and negative. Electrostatics, as the name implies, is the study of stationary electric charges. Subject. 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}. Conclusions Summarize what you learned in the lab, with specific references to the scientific concept under study which you detailed in the introduction. \end{eqnarray}. Values of Thickness 2. The negatively charged balloon repels the negatively charged electrons, thus forcing them to move downwards. Typically, after charging, the needle might be at 80. when using the two different charges opposite to each other the puck would go twice as fast towards the negative charge puck. 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. the source of this attraction is due to the presence of static electric charge. Lab 1 - Electrostatics Lab's goal To investigate the electrostatic interaction between various objects. Slide the block into the Coulomb apparatus without touching the sides of the box with the ball. Record in your notes the relative humidity in the room (from the wall meter) and the inside and outside temperature. When charge is brought near the top electrode, the movable vane moves outward, being repelled by the fixed vane. 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. The measurements done with the micrometer obtained the highest number of significant figures for the thickness of a single sheet of text book paper. Electrostatics - 1 Electrostatics PES 216 Report Objective (up to you this time) The purpose of this lab was to investigate the nature of electric charge: how different materials obtain different charges, how like and opposite charges react with one another, . To investigate the electrostatic interaction between various objects. The fundamental concept in electrostatics is electrical charge. 12 Test Bank - Gould's Ch. what happens and then repeat the demo. game. The title should indicate what the lab report is about. Lab Report #2 for the Electric Circuits 1 course. 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 . Figure 11 below shows the situation where your eye is still too high and to the right. Negative charge on the sweater will move on to the balloon. 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. Look in through the side plastic window. Using Coulombs law, we can explore the effect of the distance, between two charged particles, on the force between them. The reason why you can make a goal without hitting the puck is because we are using electric fields to move the puck. electric attraction. USW00094728 TSG Consulting. Talk about the similarities and differences in the two models represented by the sims. They were attracted to the positive charges of the sweater instead of each other. negative charges affect the puck when displayed in the hockey game. much stronger repulsion than when the non-sticky sides face each other. have entered this once neutral region). static-electricity_en, Then we will utilize two classic electrostatic devices the electrophorus and the Touch his finger to the door knob to show ii. Recharge the balls as in steps 1 4, and record a series of measurements of the inside edges of the balls. Write observations with drawings of Lab report 2. gaining electrons now has more electrons and becomes negative. Electrons will actually move along this path to the ground. This process extends to other objects and real world applications, such as the controlling of electrical cable manufacturing and application in areas such as a television depot station, where static electricity must be managed and accounted for to avoid disruptions. Sweater will become electron deficient thus, making it have more positive charges. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . In order for the balloon to stick to the wall you need to have rubbed the balloon on the Consequently, Observe what happens with the electroscope needle. For a negative charge, vvjut. It is referred to as a "proof plane". Use Google Spreadsheet to document your data, graph, and b. Using the values from the experiment, we found that the slope of the line is 1.51. illustrates the direction of the field in a positive and negative charge. PURPOSE OF THIS ASSIGNMENT: To improve your scientific literacy and critical thinking With the positive charge you can push the positive puck, and on the other hand, you can use It was found that the slope of the linear fit depicts that the electric field runs perpendicular to the potential lines, whose . This new feature enables different reading modes for our document viewer.By default we've enabled the "Distraction-Free" mode, but you can change it back to "Regular", using this dropdown. charge is produced because some electrons are transferred from one object to the other. USW00094728 ScenarioMandy took a trip to Rome, Italy. Answer: A variable DC (direct current) supply provides variable output voltages. electrochemistry-lab-report-conclusion 2/5 Downloaded from uniport.edu.ng on March 3, 2023 by guest reaching down even to the molecular level. 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. each other. Record and explain your results. The arrows on the puck are illustrating how both the positive and. Once again, recharge the metal plate. Provide details on what you need help with along with a budget and time limit. Although the wall should normally have a neutral charge, the charges within it can rearrange so that a positively charged area attracts the negatively charged balloon. Most of the common objects we deal with in the macroscopic (human-sized) world are electrically neutral. When the balloons are rubbed by fur, they become charged negatively. 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. The hanging ball will be attracted by polarization, as in Section III of this lab. same between the two charges. 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. d. How would the arrows look if the puck was negative? Figure 2 On the Van de Graaff, a hollow metal sphere is supported by a cylindrical insulating support stand. Wool is a conductive material, which means it readily gives away its electrons. Objects of the same electric charge User Generated. User. Labs goal (transfer of charge, induction, attraction, repulsion, and grounding). If the angle \(\phi\) is small, then \(\tan\phi = \sin\phi\), and \(d\) is proportional to \(F\). when two non-conducting materials are rubbed together for example plastic and fur. Therefore the balloon Summarize the findings. The negatively charged I tried to put b. law. If they are charged differently, they show attraction. Data section includes the provided table; observations are reasonably accurate and the conclusions regarding the charge are consistent with the observations. Course. What should you plot against what? Charge the lucite rod by rubbing it with silk. PHY 2. It depicts how the gravitational attraction force for small objects is insignificant when compared to electrostatic charge. For an additional credit of 2 mills, use Excel to fit a power-law curve to the data. Consequently, when you rub a balloon on wool, this causes the electrons to move from the wool to the balloon's surface. Physics Lab Report. Record this distance in your notes. Devise and execute an experiment to verify the dependence of the Coulomb force on the value of one of the charges. (transfer of charge, induction, attraction, repulsion, and grounding). A rod of plastic rubbed with fur or a rod of glass rubbed with silk will attract small pieces of paper and is said to be electrically charged. The experiment that was conducted to prove my theory started by getting all the negative charges from the sweater then putting it up against the wall once it was filled with the negative charges. c. Determine the relationship between amount of charge and the strength of the electric field . 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. For example, if you charge a balloon by rubbing it on your hair, it can stick to a neutral Describe the materials and fabrics that you found: A conductor will carry an electrical current. Lab 1 - Electrostatics SET thevaluesofq 1 to-7 Candq 2 to10 C. 3. Then, describe some of your experiments and your observation with captured images from the simulation. in topics pertaining to physics and Hypnotization has been at the center of innumerable discussion and discourse among experts and quacks alike. 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. Electric fields and gravitational fields are alike in the sense that they both act upon a system and are dependent of it. and protons carry positive charge. Explore to develop your own ideas about electrical charge. the positive charge would pull neutral region) and the support/needle acquires an excess of negative charge (since electrons Determine how different objects interact through the electrostatic force. of Energy (DoE) report found - with "low confidence" - that COVID likely accidentally leaked out of a lab in China. This force decreases as the distance between the charges increases. With the electroscope deflected as a result of the operations above, bring the charged lucite rod near the electroscope again. Touch the lucite rod to the top of the electroscope. The balls will share their charge, and half the charge will remain on the first ball (assuming the balls are the same size). 3) Stick the "T" and the "B" tape to a surface, so that about 9 cm of the tapes are hanging freely in the air. Bring up John Travoltage. 3 1 m 18 V 12 V/m 4 Reflect on your answer to #2, write down how your thinking has changed. Have a class Why or why not? The material gaining electrons now has more electrons and becomes negative. You do not need to measure the position of its center, but will record the position of its inside edge. Washington DC-Baltimore Area. What do you predict for the answer? balloon. In order for the balloon to stick to the wall you need to have rubbed the balloon on the sweater so that it is able to collect electrons, then once you place the balloon near the wall it will stay on it. (You may feel a slight shock.). A. Turn down the variac and shut the power off. When rubbed, a piece of amber can attract small objects like tiny pieces of When charge was transferred to the top, the gold leaves would become charged and repel each other. wall. USW00094728 Place the rod into the stirrup holder as shown in Figure 7. I tried to put the two balloons together, but they kept moving away from each other. Touch his finger to the door knob to show grounding. KVL states that in a closed loop the sum of the voltages of branches are equal to zero. After that, I then made him touch the doorknob and all of the negative charges followed through the door. Repeat the procedure until you have experienced several sparks. Examine the image with a positive and a negative charge on the playing surface. Surrounding a charge there is an invisible electric field which gets weaker the farther away one gets from the charge. You will be testing the inverse \(r\)-squared dependence of Coulomb's Law with a very simple apparatus. around a charged body. Be prepared to start your timer. Record the observations in your notes. 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. 2. An empty meter should appear; to start the measurement press the green 'play' button at the top of the screen. b. The magnitude of the electrostatic force between two-point charges ql and q2 is given by Coulomb's law. The force is proportional to the product of the magnitude of the charges. Fixed Distance, Changing Charge 1. Our best tutors earn over $7,500 each month! If the humidity is extremely low, as is often the case in Southern California, you will probably not escape the lab without a direct experience with electrostatics! You can stack charges on top of one another Conclusion general unknown metal objective the projectile motion are many concepts of a lab report conclusion. Time up to five minutes, if necessary. Recharge the metal plate by placing it back on the lucite, touching the lucite, and then lifting the plate off with its insulating handle. The charged particles which make up the universe come in three kinds: positive, negative, and neutral. Observe what happens with the neon tube. If the needle falls to 0 in 15 seconds or so, as it does on some summer days, you will probably have difficulty completing the experiments, even with the help of the heat lamp. Oct 2011 - Present11 years 5 months. What is the average distance a spark will jump? Both the negative and positive charges have the same pull/push strength that can affect Talk about the similarities and 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. To experimentally investigate electrostatics, some chargedetecting or measuring device is needed. Observe and record what happens to the balls. A neutral particle is not affected by electrical forces. They are composed of atoms that consist of negatively charged electrons moving in quantum motion around a positively charged nucleus. 3. A static charge is produced because some electrons are transferred from one object to the other. You can record and graph data in Excel or by hand (although if you work by hand, you will lose the opportunity for 2 mills of additional credit below). Keep the rod in position. Write what you think is happening. Follow A. However, if a neutral object USW00094728 Step 3: Add an extra bulb into the circuit loop. The current should be read on the 300 mA (or lower) scale. 12 Test Bank, Chapter 01 - Fundamentals of Nursing 9th edition - test bank, Kami Export - Jacob Wilson - Copy of Independent and Dependent Variables Scenarios - Google Docs, Kami Export - Athan Rassekhi - Unit 1 The Living World AP Exam Review, Greek god program by alex eubank pdf free, Kaugnayan ng panitikan sa larangan ng Pilipinas, EDUC 327 The Teacher and The School Curriculum, Leadership class , week 3 executive summary, I am doing my essay on the Ted Talk titaled How One Photo Captured a Humanitie Crisis https, School-Plan - School Plan of San Juan Integrated School, SEC-502-RS-Dispositions Self-Assessment Survey T3 (1), Techniques DE Separation ET Analyse EN Biochimi 1, University of North Carolina at Greensboro, Genrl Physics Ii With Calc Lab (PHY 292L). c. Which way do you think the puck will move? The lab TA will provide more instruction. She was aware, though, that almost all of Italy's electricity was generated by burning fossil fuels, and thus she was determined after this to use the portable solar charger she had bought rather than wall electricity. After writing this essay, I have realized the importance of electrostatics in our lives. gaining electrons now has more electrons and becomes negative. It is pretty easy basic calculations, Electricity, Magnetism, and Light Compare/Contrast Paper. Wool is a conductive material, which means it readily gives away its electrons. 1. c. What do you think would happen if you use 2 charges instead of one to make the puck A metal ball (C)charged with static electricity can be lowered into the pail on a nonconducting silk thread. 12 Test Bank - Gould's Ch. 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 Static Create a portfolio of projectile motion sensor and experiments. 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). placed on an insulator, it will remain at the same spot until it is neutralized. A. 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. If the sticky side of both the tape. Electrostatics Lab Conclusion: Explain how the balloons are in equilibrium and how this allows us to calculate the electrostatic force. Test your understanding: Without using the simulations, predict the answers to these questions, then use the simulation to check your ideas. a B. Thus, the polarized material will experience a net attractive Describe an experiment and include images from the simulation that supports your answer. Hold one end of the neon tube with your fingers, and bring the metal plate slowly closer to the other end. (The heat lamp may help to minimize humidity near the pith balls.). ), The displacement \(d\) of the hanging ball from its equilibrium position depends on the electrical force \(F\) which repels it from the sliding ball. hockey puck but they are on a high friction surface, so they stay in place allowing for In a metal, a charge can move freely and stay on the surface. : an American History (Eric Foner), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. The hanging ball should be centered on a line with the sliding balls. How does the plastic rod affect the pith balls after they have been charged with the lucite rod? determine the equation for the relationship. 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: Electrostatics Lab Report Conclusion is universally compatible next any devices to read. Rub the second lucite rod with silk, and bring it close to the first rod. As a result, like charges repel each Basic Questions for Ohm's Law Lab Report Question: What is Variable DC supply? Try to estimate measurements to 0.2 mm. 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. The table and graph above shows us the linear relationship between the Electric Field Charge and Voltage.

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