PPT-Electrostatics

Electric Force Whiteboard Particle Model remember sticky tape lab H ow you can make a balloon stick on the wall What is occurring on the atomic level that lets you do this The atom The atom has positive charge in the nucleus located in the protons . 1 Electric and 64257elds 1 111 Electrostatic Force 1 112 Uniform electric 64257elds In an equilibrium situation there cannot be an electric field inside a conductor as this would cause charges electrons or ions to move around Charge density inside a conductor is zero This follows from Gausss law As the charge density This does no F 1 exerted by q1 , the force F 2 exerted by q2 , and the force F 3exerted by q3 on Q. separation distance, on their velocities and on their accelerations. In this Chapter we will the force acting 2007–2008 Workshop Materials Special Focus: Electrostatics 3 A Note from the Editor Peggy Bertrand Oak Ridge High School Oak Ridge, TN One of the most di cult areas of physics to learn, and Lesson 3:. Uses of Electrostatics. (part 1). Starter. Solve the following anagrams (all connected with charge and electrostatics):. cattis. chosk. desplad. garech. raid rifle bolt. rathe. regyne. ANSWERS. Units of Chapter 16. Static Electricity; Electric Charge and Its Conservation. Electric Charge in the Atom. Insulators and Conductors. Induced Charge; the Electroscope. Coulomb’s Law. Solving Problems Involving Coulomb’s Law and Vectors. Also Known As. Static Electricity. Chemistry Refresher. Atom. the basic unit that makes up all . matter. Made up of protons, neutrons, and electrons. Chemistry Refresher. Proton. Part of an atom that has a positive charge. October 2012. Objectives.. To understand the basic properties of electric charge.. To describe the difference between conductors and insulators.. To calculate the electric force using . Coulumb’s. Law.. Lesson . 4. :. Uses of Electrostatics. (part 2). Starter. How many uses of electrostatics can you . recall. from last lesson. Look at the picture below, what do you think is the main topic of today’s lesson?. Examples of electrostatic discharges. Lightning . . – static cling in dryers. “foot dragging” – “shocking” cats. Electrical charges come in two types, and –. Amber (Gk. electron) is associated with – . phone for some research!. Do Now. In your notes:. Draw an atom of either Helium, Lithium, or Carbon. Label all the parts of your atom.. The first scientist to study these phenomena was Benjamin Franklin (1706-1790).. Tape lab (pt. 1). Make a tape “Flag”. Make a top (T1) and bottom (B1) tape sandwich. Make another pair of top and bottom tapes (T2 & B2). Directions. Hang T1 and B1 off the end of the table. (see figure below). EDII Section 1. Continuous medium with ions and electrons. Average potential. Some external electric field. 1. Macroscopic electrodynamics: fields in space occupied by matter. Spatially average the actual microscopic field over atomic length scales.. Coulomb's Law : . Coulomb's Law states that the force between two point charges Q. 1. and Q. 2. is directly proportional to the product of the charges and inversely proportional to the square of the distance between them..