1 / 8

Chapter 33: Electric Fields and Potential

Chapter 33: Electric Fields and Potential. Conceptual Physics Bloom High School. 33.1 Electric Fields. Electric Fields- similar to a gravitational field Acts at a distance Can be positive OR negative Test Charge- used to determine the strength of a field and/or the direction of the field

berny
Télécharger la présentation

Chapter 33: Electric Fields and Potential

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 33: Electric Fields and Potential Conceptual Physics Bloom High School

  2. 33.1 Electric Fields • Electric Fields- similar to a gravitational field • Acts at a distance • Can be positive OR negative • Test Charge- used to determine the strength of a field and/or the direction of the field • Always positive • “Direction” can be positive or negative

  3. 33.2 Electric Field Lines • Electric field is a vector quantity • Magnitude and direction • Arrows extend from positive charges and toward negative charges • Lines closer together represent a stronger field • Physics Physlets I.23.2, I.23.3, P.23.2 (PhET Charges & Fields 2.04)

  4. 33.3 Electric Shielding • Shielding- charges spread evenly over the surface • Charges don’t extend into the object

  5. 33.4 Electric Potential Energy • PE- energy based on location • Gravitational PE- location between objects & mass • Electrical PE- location between objects & charge • Physics Physlets I.25.2

  6. 33.5 Electric Potential • Electric potential (V) • Electric potential energy ÷ charge • Volt (Allesandro Volta) • 1 Volt = 1Joule/Coulomb • A Coulomb is a large amount of charge, so everyday objects can have large amounts of voltage, but would have small charges • A balloon can have thousands of Volts but only a millionth of a Coulomb

  7. 33.6 Electric Energy Storage • Capacitor- stores electrical charge • Used in all circuitry • Storage based on voltage, size of plates and gap between plates • Physics Physlets I.26.1

  8. 33.7 The Van de Graff Generator • Van de Graff Generator- high voltages are built up on a surface • Charges are distributed evenlyon surface • Very large charge is possible (MV range!) • MythBusters: Van de Graff Generator • http://www.youtube.com/watch?v=7qgM1A3pgkQ

More Related