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Unit 8

8.0 Unit 8 Overview: Electric Charge and Electric Force

#electricity

#electricforce

#mass

#charge

#electrostaticforce


written by

Peter Apps

peter apps

published on april 16, 2020

Last updated on June 8, 2020

Electricity is everywhere, powering our daily lives. While difficult to visualize, the basics of electricity rely on the idea of electric charge and the interactions of charged objects.

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Image courtesy of Giphy.

This unit introduces the concepts of electric charge and electric force. These concepts serve as the basis for developing electric circuits in Unit 9 as well as being foundational to the magnetism topics in AP Physics 2. These topics will account for ~4-5% of the AP exam questions and will take approximately 3-5 45 minute class periods to cover.

Applicable Big Ideas

  • Big Idea #1: Systems - Objects and systems have properties such as mass and charge. Systems may have an internal structure.

  • Big Idea #3: Force Interactions - The interactions of an object with other objects can be described by forces.

  • Big Idea #5: Conservation - Changes that occur as a result of interactions are constrained by conservation laws.

Key Concepts ๐Ÿ”‘

  • Charge (q)

  • Electrostatic Force (Fe)

  • Conservation of Charge

  • Proton, Electron, Neutron

Key Equations ๐Ÿ—

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