PPT-Chapter 16 Electric Charge and Electric Field

2014 Pearson Education Inc Contents of Chapter 16 Static Electricity Electric Charge and Its Conservation Electric Charge in the Atom Insulators and Conductors Induced Charge the Electroscope. The Field Model . The . Electric Field of a Point Charge, and many point charges. PHY132 . Introduction to Physics II. . Class 9 – . Outline:. Class . 9 . Preclass. Quiz on . MasteringPhysics. Vocabulary:. Balloon and Scotch Tape Electroscope Lab. Balloon Lab. Big Idea. : There exist electrical charges which can repel/attract one another.. Up and atom!. An atom is the smallest unit of a particular element.. The Field Model . The . Electric Field of a Point Charge, and many point charges. PHY132 . Introduction to Physics II. . Class 9 – . Outline:. Identical metal spheres are initially charged as shown.. The electric force is one of the fundamental forces of nature. Controlled electricity is the cornerstone of our modern, technological society.. Chapter Goal: . To develop. a basic understanding of electric phenomena in terms of charges, forces, and fields.. . HW2:Chapter 21, Pb.1, Pb.12, Pb.13, Pb.25, . Pb.31, . Pb.36,Due Wednesday, Jan.25. 21.1 Electric Charge, q or Q. Charge comes in two types. 1e = 1.6x10. -19. Coulombs (unit of charge) fundamental unit of charge. . 21-6 The . Electric . Field. Gravitational . Field. +. -e. Electric Field. +. +. +. Units . N/C. 21-6 Electric Field. https://. www.youtube.com/watch?v=xg0Lg-uSMSQ. 21-6 Electric Field: point charge. Positive. Negative. It can’t happen!. The magnitude of an electric field due to a point charge . q. at a distance . r. away depends on the strength of the charge of a test particle. True. False. Positively charged . Electrons on an insulator (zoomed in).. Zoomed out – difficult to “see” individual electrons . smooth distribution of charge..  Like charge is “smeared” on the insulator.  . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -. Contents:. Basic Concept. Calculating electric Field example. Whiteboards. Point Charges. Examples. Whiteboards. Electric Fields in Charge Arrays. Force on mass Force on charge. g = Field strength E = Field strength. Chapter 21. © 2016 Pearson Education Inc.. Learning Goals for Chapter 21. Looking forward at …. how objects become electrically charged, and how we know that electric charge is conserved.. how to use Coulomb’s law to calculate the electric force between charges.. 18.1 . The Origin of Electricity. The electrical nature of matter is inherent. in atomic structure.. coulombs. 18.1 . The Origin of Electricity. In nature, atoms are normally. found with equal numbers of protons. Static Electricity. Static Electricity-. accumulation of excess electric charges on an obj. pg. 194. Protons = + electrical charge. Electrons= - electrical charge . Example of electron transfer: . Physicists have identified four fundamental forces that account for the account all phenomena in the universe. .* . Force. Strength. Distance of action. Description. Strong nuclear. Very. strong!. Very, very Short. Defining the Electric Field. Michael Faraday suggested the idea of a force field to explain how the electric force can act at a distance.. An . electric field . is a property of the space around a charged object that exerts forces on other charged objects. .