## 3rd Quarter: February 13 - 17

## Monday, February 13th

**2nd Period: Today in class….**

- Today we talked more bout the electric field - how we visualize it and how we measure it.
- We focused on how a test charge can be used to determine the direction and strength of the field.
- We did two examples - Class Examples 1 and 2 to get some practice with this first method.
- Towards the end of class we talked about a second way - using the distance from a larger point charge. We'll look more at this next time.

**HOMEWORK:**Read in text, Chapter 33, Sections 1 - 3 (Electric Fields) and look ahead to sections 4 - 6 (Electric Potential)

Electric Fields & Electric Potential 2nd Period - 2-13.pptx | |

File Size: | 1596 kb |

File Type: | pptx |

Class Examples 1-2 - Solutions.pdf | |

File Size: | 94 kb |

File Type: |

**4th Period: Today in class….**

- Today we spent just a little time reviewing the electric field before we moved on to the electric potential.
- The electric field is the 3 dimensional warping of the electric field due to the presence of electric charges. Larger positive charges pull the electric field up in to a mountain while negative charges push it down into a valley.
- The electric potential is measured in reference to electric potential energy - this is energy gained by particles when we make them move in a way they normally wouldn't naturally. They then use this electric potential energy to move, power electrical objects, etc….
- We did a little bit of mathematic practice today, but today was mostly concepts.

**HOMEWORK:**Read in text, Chapter 33, Sections 4 - 6

Electric Fields & Electric Potential 4th Period - 2-13.pptx | |

File Size: | 327 kb |

File Type: | pptx |

Class Examples 5 & 6 - Solutions.pdf | |

File Size: | 1562 kb |

File Type: |

## Wednesday, February 15th

**2nd Period: Today in class…**

- After a quick review, we practiced a bit with our second method of calculating the electric field - using the distance from a point source.
- We did class examples 3 and 4 to practice with this.
- We had some time to do some independent practice with the electric field before moving on.
- Afterwards, we talked about our next big topic called the electric potential. This is the 'steepness' or warping of the electric field.
- Towards the end of class we talked about electric potential energy and its connection to the electric potential.

**HOMEWORK:**Read in text, Chapter 33, Section 4 - 6

Electric Field & Electric Potential - 2nd Period 2-15.pptx | |

File Size: | 836 kb |

File Type: | pptx |

Class Examples 3-4 - Solutions.pdf | |

File Size: | 165 kb |

File Type: |

**4th Period: Today in class….**

- After a bit of review, we talked more about the electric field and electric potential.
- We finished example 6 before having a little bit of time to practice calculating electric potentials on our own. The solutions for examples 5 and 6 are attached below.
- Afterwards, we talked about faraday cages as an application of electric fields.
- To finished up class, we looked at the formula needed to calculate the voltage produced by a capacitor.

Electric Fields & Electric Potential 4th Period 2-15.pptx | |

File Size: | 574 kb |

File Type: | pptx |

Class Examples 5 & 6 - Solutions.pdf | |

File Size: | 1562 kb |

File Type: |