### Lecture 11: Potential Energy

**Objectives:**In this lecture, students will learn to

- distinguish between conservative and non-conservative forces
- relate force to potential energy
- construct an expression for the potential energy associated with a force
- define the total mechanical energy
- relate the chance in total mechanical energy to the work done by forces not included in potential energies
- apply energy conservation to example problems

**Lecture Notes:**

- Powerpoint: lec11.pptx
- Pdf (recommended for printing): lec11.pdf

**Videos:**

Introduction | lec11_1.mp4 | with captions |

Conservative and non- conservative forces | lec11_2.mp4 | with captions |

Potential energy | lec11_3.mp4 | with captions |

Total mechanical energy | lec11_4.mp4 | with captions |

Example 1: one object | lec11_5.mp4 | with captions |

Example 2: coupled objects | lec11_6.mp4 | with captions |

**Extras:**

Additional example problem | Video.mp4 | with captions |

**Homework assignment:** HW #11