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### What makes an electric circuit? What is the relationship between voltage, current, and resistance?

posted Mar 30, 2018, 11:10 AM by Barbara Fortunato   [ updated Apr 9, 2018, 10:40 AM ]
5: T 4/10, 7: W 4/11 M 4/9

Today, we’ll start Unit 9 and talk about what makes current flow. We’ll talk about how circuits relate to the concepts of electric fields and electric potential.  Then, we'll do a lab where you will construct the relationship between voltage, current, and resistance.

Presentation:  Electric Current Introduction
Homework:  Finish your lab graphs, transforming if necessary.  Put your graphs in a Google Sheets file on Google Classroom.  Then come up with a proportionality relationship between voltage, current, and resistance.  (Does not need to include coefficient.)
If you missed the lab or have questions about what you should get for the V vs. I graph, then watch the following video:

#### Ohm's Law (Smart Learning for All)

For those of you missing the lab, you'll have to make up the lab with this simulation: