Home

Coulomb's Law test

30 seconds. Q. Coulomb's law says that the force between any two charges depends. answer choices. directly on the size of the charges. inversely on the square of the distance between the charges. both are correct. Tags: Question 13 If two equal charges, each of 1 coulomb, were separated by a distance of 1 km, what would be the force between them

1. In Coulomb's Law, increasing the distance between particles by a factor of 2 while leaving all other factors the same will: cause the force to decrease by a factor of 4 cause the force to.. 1.1E-10 N. Tags: Question 2. SURVEY. 180 seconds. Q. Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of -5 C and the other has a charge of +2.0 C. answer choices. -1.5E-11 N Description This mock test of Test: Coulomb Law for Electronics and Communication Engineering (ECE) helps you for every Electronics and Communication Engineering (ECE) entrance exam

Coulomb's Law Test Review Electricity Quiz - Quiziz

• The exponent 2 in Coulomb's inverse square law of force between charges in empty space has been found experimentally to be correct to within 1 part in ${10}^{9}$. The wellknown electrostatic experiment of Cavendish and Maxwell with concentric metal globes was replaced by a quasistatic method in which the difficulties due to spontaneous ionization and contact potentials were avoided
• (b) Coulomb's law gives only the magnitude of the electric force. Being repulsive or attractivedepends on the signs of charges. Like charges attract and unlike charges repel each other. Here, the two charges have opposite signs so electric force between them is attractive
• Test. PLAY. Match. Gravity. Created by. jakesavell. Terms in this set (12) charge. the quantity of unbalanced electricity in a body, either positive or negative. Coulomb's law. electric force between charged objects depends on the distance between the objects and the magnitude of the charges
• Free download in PDF Coulombs Law Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like IIT-JEE, NEET, AIIMS etc. These short solved questions or quizzes are provided by Gkseries. 1 Two charges 1C and -4C exists in air
• e Coulomb's constant. Deter
• Coulomb's law, otherwise known as Coulomb's inverse-square law, describes the electrostatic force acting between two charges. The force acts along the shortest line that joins the charges. It is repulsive if both charges have the same sign and attractive if they have opposite signs. Coulomb's law is formulated as follows

Experimental Test of Coulomb's Law D. F. Bartlett, P. E. Goldhagen, and E. A. Phillips Phys. Rev. D 2, 483 - Published 1 August 197 where k is a constant of proportionality, called Coulomb's constant, k = 8.99 x 109 N.m2/C2. In this experiment, you are going to verify the Coulomb's law by using a Coulomb balance. Apparatus High Voltage Power Source (0- 6 kV), PASCO Coulomb Balance Description of Apparatu The magnitude of the electric force (or Coulomb force) between two electrically charged particles is equal to We use absolute value signs around the product because one of the charges may be negative, but the magnitude of the force is always positive. The direction of the force vector depends on the sign of the charges

Coulomb's law - problems and solutions 1. Two point charges, QA = +8 μC and QB = -5 μC, are separated by a distance r = 10 cm. What is the magnitude of the electric force Coulomb's law, or Coulomb's inverse-square law, is an experimental law of physics that quantifies the amount of force between two stationary, electrically charged particles. The electric force between charged bodies at rest is conventionally called electrostatic force or Coulomb force. Although the law was known earlier, it was first published in 1785 by French physicist Charles-Augustin de. Jul 11,2021 - Test: Coulomb's Law and its Applications | 10 Questions MCQ Test has questions of JEE preparation. This test is Rated positive by 86% students preparing for JEE.This MCQ test is related to JEE syllabus, prepared by JEE teachers Coulomb's Law: Solved Problems for High School and College. Practice problems with detailed solutions about Coulomb's law and electric force are presented which are suitable for high school and college students. These problems update regularly but for more solved problems (over 61) see here According to Coulomb's law, the force of attraction or repulsion between two charged bodies is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. It acts along the line joining the two charges considered to be point charges

Coulomb's Law Practice Work & Energy Quiz - Quiziz

1. Coulomb's law gives the relationship between the force of an electric field and the distance between two charges: The strength of the force will be inversely proportional to the square of the distance between the charges. When the distance between the charges is doubled, the total force will be divided by four (quartered)
2. 2.2 Coulomb's Law Consider a system of two point charges, and , separated by a distance in vacuum. The force exerted by on is given by Coulomb's law: q1 q2 r q1 q2 12 12 2 ˆ e qq k r F= r G (2.2.1) where ke is the Coulomb constant, and rrˆ = /r G is a unit vector directed from to , as illustrated in Figure 2.2.1(a). q1 q2 (a) (b
3. Concept: Coulomb's law: When two charge particles of charges q 1 and q 2 are separated by a distance r from each other then the electrostatic force between them is directly proportional to multiplication of charges of two particles and inversely proportional to square of distance between them. Force (F) ∝ q 1 × q 2. F ∝ 1 r 2. F = K q 1.

Coulomb's law (also known as Coulomb's inverse-square law) is a law of physics that defines the amount of force between two stationary, electrically charged particles (known as the electrostatic force).Coulomb's law was discovered by Charles-Augustin de Coulomb in 1785. Hence the law and the associated formula was named after him Free Online COULOMB S LAW Practice & Preparation Tests. Family Law Exercise Test - 1 . By : Anonymous; 20 min 15 Ques Start Test. M Family Law Exercise - 1 . By : Anonymous; 20 min.

These units are required to give the force in Coulomb's law the correct units of newtons. Note that in Coulomb's law, the permittivity of vacuum is only part of the proportionality constant. For convenience, we often define a Coulomb's constant: \[k_e = \dfrac{1}{4\pi \epsilon_0} = 8.99 \times 10^9 \dfrac{N \cdot m^2}{C^2}.\ A simple, easy explanation of the intuition behind Coulomb's law and a worked example of an exam type question. Hi! I'm Jade. I make fun physics videos that.. Coulomb's Law - Electric Charges and Fields - Class 1 Coulomb's Law is introduced and compared to Newton's Universal Law of Gravitation. Point Charge is defined. Micro, Nano, and Pico prefixes are explained. T.. Coulomb's Law Lab Instructions 1 Introduction The goal of this experiment is to test the validity of the Coulomb force law F(r) = A=r2 between two charges. It servers as an example of a powerful null measurement technique for constraining hypothetical deviations from known laws of physics and introduces a numbe

Quiz & Worksheet - Coulomb's Law Study

A high-frequency test of Coulomb's law is described. The sensitivity of the experiment is given in terms of a finite photon rest mass using the Proca equations. The null result of our measurement expressed in the form of the photon rest mass squared is ${\ensuremath{\mu}}^{2}=(1.04\ifmmode\pm\else\textpm\fi{}1.2)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}19}$ ${\mathrm{cm. Introduction . Coulomb's Law gives us the static electrical force F, exerted by a point charge Q 1 on another point charge Q 2 in terms of r, the distance between them :. F = Q 1 Q 2 / 4 0 r 2 ( 6.1). In this experiment, we will verify this law and also learn how to use an optical lever to magnify a small rotation into a large displacement You most certainly have experienced the interaction between two objects that have acquired an electric charge, whether it was the static cling between clothes or the attraction between your hair and a comb on a dry day. In this experiment, you will make the measurements that will allow you to determine a quantitative relationship between the electrostatic force and the distance between charged. Newton's Laws & Coulomb's Law Chapter Exam. Take this practice test to check your existing knowledge of the course material. We'll review your answers and create a Test Prep Plan for you based on. Assessment: Coulomb's Law. Students will complete an exit ticket where they make predictions, conceptually and mathematically, about the force of attraction or repulsion between two charged objects using Coulomb's Law Start studying Coulomb's Law, Coulomb's Law, Science Cumulative Exam Review, Entire Science Semester, Unit Test Review Physical Science, Unit Test Review, Unit test 9, Electricity Review, Physics B Electricity Test Review, cumulative exam review, Unit Test Review,.... Learn vocabulary, terms, and more with flashcards, games, and other study tools AP Physics Practice Test: Electric Forces & Fields, Gauss's Law, Potential ©2013, Richard White www.crashwhite.com This test covers Coulomb's Law, electric fields, Gauss's Law, electric potential energy, and electric potential, with some problems requiring a knowledge of basic calculus. Part I. Multiple Choice 1 Coulomb's inverse square law are usually associated with the non-zero photon mass. In this article, we ﬁrst give a historical review of the foundation of Coulomb's inverse square law. Then, the experimental searches for validity of Coulomb's Law, particularly in its inverse square nature, are generally introduced$\begingroup\$ An indirect test of Coulomb's law via QED is qualitatively different from a direct evidence of Coulomb's law because if QED were false in some way that does not allow to make the connection between the photon mass and the law anymore, then this evidence would not count. And even though QED is confirmed by testing the fine structure constant, this test means that given the. Practicing All Coulombs Law - Basic Science Entrance Exam Questions and Answers in online helps you to improve your ability to attend the real time maths, chemistry, physics Entrance Exams. part1, Page

Coulomb's law calculates the magnitude of the force F between two point charges, q1 and q2, separated by a distance r. In SI units, the constant k is equal to. k =8.988×109 N⋅m2 C2 ≈8.99×109 N⋅m2 C2 k = 8.988 × 10 9 N ⋅ m 2 C 2 ≈ 8.99 × 10 9 N ⋅ m 2 C 2. The electrostatic force is a vector quantity and is expressed in units of. Coulomb's law is formulated as follows: F = k e q₁q₂/r². where: F is the electrostatic force between charges ( in Newtons ), q₁ is the magnitude of the first charge (in Coulombs), q₂ is the magnitude of the second charge (in Coulombs), r is the shortest distance between the charges (in m), k e is the Coulomb's constant A Very Accurate Test of Coulomb's Law of Force Between Charges. Plimpton, S. J. ; Lawton, W. E. Abstract. The exponent 2 in Coulomb's inverse square law of force between charges in empty space has been found experimentally to be correct to within 1 part in 10 9. The wellknown electrostatic experiment of Cavendish and Maxwell with concentric. Figure 5.14 The electrostatic force F → F → between point charges q 1 q 1 and q 2 q 2 separated by a distance r is given by Coulomb's law. Note that Newton's third law (every force exerted creates an equal and opposite force) applies as usual—the force on q 1 q 1 is equal in magnitude and opposite in direction to the force it exerts.

EXAMPLE 1.5. Consider four equal charges q 1,q 2, q 3 and q 4 = q = +1μC located at four different points on a circle of radius 1m, as shown in the figure. Calculate the total force acting on the charge q 1 due to all the other charges.. Solution. According to the superposition principle, the total electrostatic force on charge q1 is the vector sum of the forces due to the other charges (i)SI unit coulomb (C) (ii) CGS system. electrostatic unit, esu of charge or stat-coulomb (stat-C) electromagnetic unit, emu of charge or ab-C (ab-coulomb) 1 ab-C = 10 C, 1 C = 3 x 10 9 stat-C. 8.Coulomb's Law It states that the electrostatic force of interaction or repulsion acting between two stationary point charges is given by. 9 Coulomb's law definition in physics is explained by the concept of electric charge and electric force. According to Electricity, moving electric charges experience force when kept in a magnetic field. Here the charge is in the form of matter which may be a positive charge or negative charge. The positive charge is the composition of protons and negative charge contains electrons Coulomb's law is a law of physics describing the electrostatic interaction between electrically charged particles. It was studied and first published in 1783 by French physicist Charles Augustin de Coulomb and was essential for the development of th The vector notation of Coulomb 's Law can be used in the simple example of two point charges where only one of which is a source of charge. The total force on the field charge for multiple point source charges is the sum of these individual forces. Coulomb's Law can be further simplified and applied to a fixed number of charge points

Coulomb's Law Electricity Quiz - Quiziz

Coulomb's Law Equation. The quantitative expression for the effect of these three variables on electric force is known as Coulomb's law. Coulomb's law states that the electrical force between two charged objects is directly proportional to the product of the quantity of charge on the objects and inversely proportional to the square of the separation distance between the two objects Finally, the results of experiments to test Coulomb's inverse square law are listed in table 2 as a comparison. Coulomb's Law is a fundamental law of electromagnetism, and it seems pertinent to inquire to what extent this law is experimentally known to hold, in particular its inverse square nature

Test: Coulomb Law 10 Questions MCQ Test - EDUREV

Electric Charges and Fields (Coulomb's Law and Electric Field) Number of Questions: 20. Practice Questions Download as PDF Fill OMR Sheet Sample OMR Sheet. A high-frequency test of Coulomb's law is described. The sensitivity of the experiment is given in terms of a finite photon rest mass using the Proca equations. The null result of our measurement expressed in the form of the photon rest mass squared is μ 2 =(1.04+/-1.2)×10 -19 cm -2 . Expressed as a deviation from Coulomb's law of the form 1r<SUP>2+q</SUP>, our experiment gives q=(2.7+/-3.1. 1. To Verify the Inverse Square Law: F ~ 1/R 2 . 2. To Verify the Force and Charge Relationship: F ~ q 1 q 2 3. To Determine Coulomb's constant: k for free space. 4. Neutralize force on a test charge by introducing another other charg

As expected, the predictions of Coulomb's law are well confirmed. You find that the forces; Question: 6)As a laudably skeptical physics student, you want to test Coulomb's law. For this purpose, you set up a measurement in which a proton and an electron are situated 965965 nm from each other and you study the forces that the particles exert on. 9.2 Coulomb's law (ESBPJ). Like charges repel each other while unlike charges attract each other. If the charges are at rest then the force between them is known as the electrostatic force.The electrostatic force between charges increases when the magnitude of the charges increases or the distance between the charges decreases CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Coulomb's Law is a fundamental principle describing the electric force between isolated charges, and represents the first quantitative law achieved in electromagnetism. The degree of confidence with which the law is experimentally known to hold was investigated after the law was put forth by Coulomb in 1785

PHY2061 Enriched Physics 2 Lecture Notes Coulomb Note that mass is always defined positive (only one type of gravitational charge). Also, the force is always attractive, not repulsive. So the direction of the force is always toward another mass. Coulomb's Law (Law of Electrostatics, 1785): 12 2 12 12 ˆ coul qq K r Fr Justification of Coulomb's law [[For the sake of historical interest, Joseph Priestly (fl. 1733-1804), the discoverer of oxygen, first shown in 1767 that the absence of internal electric fields in conductors gives rise to the inverse-square law. ]] Consider a conducting sphere and a small positive test charge in its interior

Meaning in words. is electric force, is the Coulomb's law constant, and are the charges, and is the distance between the charges. The magnitude of the electric force between and is directly proportional to the magnitude of the charges and inversely proportional to the square of the distance between them. This equation is known as Coulomb's Law 3 Imagine a closed surface enclosing a point charge q (see Fig. 1.4). The electric field at a point on the surface is ( ) , where r is the distance from the charge to the point. Then, where n is the outwardly directed unit normal to the surface at that point, da is an element of surface area, and is the angle between n and E, and d is the element of solid angl

a) Lenz's law. b) Faraday law. c) Coulomb's law. d) Maxwell's law. 8. A positive and a negative charge are initially 4 cm apart. When they are moved closer together so that they are now only 1 cm apart, the force between them will be. a) 16 times larger than before. b) 8 times larger than before. c) 4 times larger than before. d) 4 times. The Coulomb/s Law Interactive allows learners to explore the force of attraction or repulsion between two charged objects. The quantity of charge on the objects can be varied by dragging a slider. And the objects can be dragged closer together or further apart. The distance between objects can be measured using a built-in measuring tool NAME: _____ Custom 7.1.1-D: Coulomb's Law 25 total points Set up the simulation app as shown below. 1. Use Coulomb's Law to determine the force of attraction between the two charges. *F E = (kq 1 q 2) / d 2 How well does your answer compare? (1 pt) If it compares poorly, go back and figure out the problem. 2. As shown, the two charges are 3 cm apart  A Very Accurate Test of Coulomb's Law of Force Between Charge

Bid History for COULOMB'S LAW TEST KITS Auction Start Date: 10/19/18 7:33 AM ET Auction End Date: 10/25/18 7:33 PM ET Asset ID: 1055 Number of Bids: 1. Loading bid history.. Coulomb's Laws of Electrostatics. Charles-Augustin de Coulomb discovered the Laws of Electrostatics in 1785 known as Coulomb's Law.Until 1784, no one knew about the unit of the electric charge, then the Coulomb introduced these laws after multiple experiments on force between two masses based on the Inverse Square Law.Coulomb's laws of electrostatic can be stated as follow

Coulomb's Law provides the force between two charges when they're present in a vacuum. This is because charges are free in a vacuum and don't get interference from other matter or particles. Limitations of Coulomb's Law. Coulomb's Law is derived under certain assumptions and can't be used freely like other general formulas As per Coulomb's law, the force of attra... If F is the force acting on the test cha... The ability of a capacitor to store char... In the combination of capacitors in seri... The coulomb's force between the 2 point If 5 J of work is required to shift 10 C... The value of k in coulomb's law depends A device which stores charge is calle

Coulomb's Law Flashcards Quizle

1. Coulomb's Law. Coulomb's law states that Force exerted between two point charges: Is inversely proportional to square of the distance between these charges and; Is directly proportional to product of magnitude of the two charges; Acts along the line joining the two point charges. Here ε 0 = 8.854 x 10-12 C 2 N-1 m-2 is called.
2. F = k q 1 q 2 r 2. 18.7. This equation is known as Coulomb's law, and it describes the electrostatic force between charged objects. The constant of proportionality k is called Coulomb's constant. In SI units, the constant k has the value. k = 8.99 × 10 9 N ⋅ m 2 /C 2. k = 8.99 × 10 9 N ⋅ m 2 /C 2
3. Coulomb's Law (Opens a modal) Coulomb's law and electric force review (Opens a modal) Unit test. Level up on all the skills in this unit and collect up to 500 Mastery points! Start Unit test. About this unit. Electric forces hold together the atoms and molecules in your eyes which allow you to read this sentence. Take a moment and learn.

Coulombs Law Multiple Choice Questions and Answers

Coulomb's law explains how big the force will be. Coulombs law explains that the Force F is relative to the ratio of q 1, q 2, 1/r 2. q 1 and q 2 are the scales of each charge and r is the distance between the two electric charges. K c is a constant value that does not change. K c is called Coulomb's Force Constant or Electrostatic Force Constant Question 10. SURVEY. 60 seconds. Q. Recap: Coulomb's law states that the force between two charged objects will __________ when the magnitude of the object's charge increases. Coulomb's law also states that the force between two charged objects will __________ when the distance between objects increases. answer choices Coulomb's Law - PhE

1. COULOMB'S LAW NAME: _____ DATE: _____ 1. 14 protons are placed 0.25 cm away from 8 electrons. What is the force between them? Data Equation Math Answer 2. A force of -2.63 x 10-12 N exists between a +8 charge and another mystery particle. The ions are 5.92 x 10-8 m apart. What is the charge of the mystery particle
2. Coulomb's Law Quiz. STUDY. Flashcards. Learn. Write. Spell. Test. PLAY. Match. Gravity. Created by. skylerbraggg. Terms in this set (12) What's a coulomb. The unit of charge (c) What's the charge on a proton? +1.602 x 10^-19th coulomb. What's the charge of an electron?-1.602 x 10^-19th coulomb. Coulombs Law
3. further to nd the Coulomb's constant by measuring the torsion constant on the string that was used to calculate the force. II. THEORY Charles-Augustin stated that a force between two charges are directly proportional to the charges squared and inversely proportional to the distance squared. This is the Coulomb's law, which is represented as.
4. In Coulomb's Law, the force can either be repulsive or attractive due to the dual nature of charges, whereas gravitational forces are always attractive. 3. Two identical tiny spheres carrying the same charge are 1.0 m apart center-to
5. y) Coulomb's Law z) Newton's Second Law. ANSWER: Y -- COULOMB'S LAW PHYS-91; Short Answer: Five volts are applied across the plates of a parallel plate capacitor. The distance of separation of the plates is .02 meters. What is the magnitude of the electric field inside the capacitor? ANSWER: 250 VOLTS PER METER or 250 NEWTONS PER COULOMB

Coulomb's Law Calculato

The distance between the spheres was 1.0 m. Calculate the force between the two spheres when the distance was decreased to 0.50 m. F2 = _____ N. 2.7. Determine the field strength, E, experienced by a test charge, q, if a charge of 1.0 x 10-6 coulombs is placed on q and a force of 6.2 N is applied. 6.2 x 10^6 N/C A test charge with a negative charge of 2.18x10-8 C experiences a northward force of 4.50x10-5 N when placed a distance of 25.0 cm from a source charge. a. Determine the magnitude and direction of the electric field at this location. = Coulomb Law Practice Problems Author Coulomb's Law states that: The electrostatic force between two point charges is proportional to the product of the charges and inversely proportional to the square of their separation. The Coulomb equation is defined as: The electrostatic force between two charges is defined by Coulomb's Law. Where: FE = electrostatic force between two. Solutions of Electric Forces & Coulomb's Law Practice Question 3. Find the electric force at point charge Q C if Q C = - 50 nC, Q A = -30 nC, and Q B = +40 nC The distance between charges are: ������ =0.50 ,������ =0.40 ,������ =0.30 . -Q A The force acting on Q C is the sum of the forces from Q A and Q B: ������ = ����� Coulomb's Law (Electric Force) Q. The electric force between two point charges is given by Coulomb's Law F = kq1q2/r2.If you make the distance between two charges 5.43 times larger... Solved • Mar 30, 2021. Coulomb's Law (Electric Force) Q. Suppose you have two point charges each of 79 nC Experimental Test of Coulomb's Law - Physical Review

Transcribed image text: <1st Summative Test (Coulomb's Law) Part 1 1 of 1 Item 1 Part A When two point charges are 2.0 cm apart, each one experiences a 10-N electric force due to the other charge. If they are moved to a new separation of 80 cm, the electric force on each of them is closest to 10N Document Sharing O 40N 16 N 0.25 N 0.063 N Su Resuest Answer < Return to Assignment Provide. Coulomb's Law Charles Augustin de Coulomb Before getting into all the hardcore physics that surrounds him, it's a good idea to understand a little about Coulomb. • He was born in 1736 in Angoulême, France. • He received the majority of his higher education at the Ecole du Genie a 6 CHAPTER 1. ELECTRIC CHARGE; COULOMB'S LAW The separation of the centers of the spheres is 2R, so the distance we use in Coulomb's law is r = 2R = 2(5.9 ×10−15 m) = 1.18 ×10−14 m so from Eq. 1.3 the magnitude of the force between the two charged spheres i Today, Coulomb force is believed to obey inverse square behaviour exactly. Another amazing aspect of the Coulomb law is the range of length scales where it has been tested and found valid. Coulomb's law is confirmed down to length scales of 10 −15 m while measurements on the magnetic field of Jupiter have confirmed this law to th Coulombs's Law (Section 5-3) Coulombs law involves the quantifying (putting numbers to) of the attraction of unlike charges and the repulsion of like charges. There are two aspects that should be obvious to us. First, the greater the charges, the greater the repulsion or attraction. If I am

Coulomb's Law - University Physics Volume

See the answer. As a laudably skeptical physics student, you want to test Coulomb's law. For this purpose you set up a measurement in which a proton and an electron are situated 901 nm from each other and you study the forces that the particles exert on each other. As expected, the predictions of Coulomb's law are well confirmed Test and understand all functional tools on screen. You must practice figuring out what is the best way to complete the measurement Data Table 1: Find Spacing between Two Charges Solve Coulomb's law Fq2 = kq1q2/r2 forr, k = 8.9876-10 Nm²/C2. Compare with measured mea. Indicate the Direction of Electric Force on q2, as Dir of Fq2 @article{osti_4129540, title = {EXPERIMENTAL TEST OF COULOMB'S LAW.}, author = {Bartlett, D F and Goldhagen, P E and Phillips, E A} ,.   Unit 2 Coulomb's Law and Electric Field Intensity While some properties of electricity and magnetism have been observed for many centuries, the eighteenth and nineteenth centuries really mark the beginning of th SAT Physics Subject Test Chapter 8 Electric Forces and Fields COULOMBS LAW. The electric force between two charged particles obeys the same mathematical law as the gravitational force between two masses—that is, its an inverse-square law Coulomb's Law. The electric charge of a material describes the net summation of positively and negatively charged ions. Like charges repel while opposite charges attract. They do so with a force that's described by Coulomb's Law. This law states that the magnitude of an electric force between two point charges is directly proportional to. The EJS Coulomb's Law and Electric Field Package is a collection of models for electrostatics. You can move charges around and see the force, observe the electric field generated by charge configurations and observe the motion of test particles in electric fields