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For more information, please see full course syllabus of AP Physics C/Mechanics
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Lecture Comments (1)

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Post by Jingwei Xie on April 17, 2014

Is friction NET or NOT conservative?

Conservation of Energy, Part 1

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Conservative Forces 0:10
    • Given a Force
    • Consider a Particle Moves from P1 to P2 on Path
    • Work Done by Force
  • Example 14:56
    • Gravity
    • Spring with Block Moves and Stretched
    • Friction is Net Conservative
    • Path 1 Straight
    • Along Path 2
  • Potential Energy by a Conservative Force 33:23
    • Choose Reference Point (Potential Energy =0)
    • Define Potential Energy at Point P
  • Conservation of Energy 40:58
    • Object Moving from P1 -P2
    • Work Kinetic Energy Theorem
  • Potential Energy of a Spring 48:42
    • Spring Stretched with Mass M, Find Potential Energy
  • Example 53:45
    • Force Acting on Particle in One Dimension
  • Extra Example 1: Work Done By Gravity
  • Extra Example 2: Prove Constant Force is Conservative
  • Extra Example 3: Work Done by Force
  • Extra Example 4: Compression of Spring