2.4.1 - Circuits

This is a two-part lesson. This first day is a fair amount of listening and learning while the second day is more hands-on.

Day 1 - Goal

• Practice creating circuits and viewing circuit diagrams

Review

• a "closed circuit" is a complete loop with some sort of power supply moving electrons

• we need enough "voltage drop" in the loop to ensure all the components work to specification

• V = I x R   or   R = V ÷ I

The Plan

• Discuss Conventional Current vs. Electron Flow - watch this video from 3:44 until 6:50

• Discuss DC vs AC current - continue watching the above video until 9:30

• Get our hands on a breadboard and jumper wires

  • watch video, "How to Use a Breadboard"

Your Task

• Join my Tinkcad Circuits class: www.tinkercad.com/joinclass/2NP8UXSR2

  • Then go to tinkercad.com/circuits

• Learn how to use Tinkercad Circuits

  • Utilize your knowledge of electricity, Ohm's law, and a circuit to virtually turn on a LED in Tinkercad

    • Add a small breadboard

    • Add a 9 V battery

    • Add one LED (not RGB)  (see the photo below for specifications)

    • Add a resistor and set it to the correct value in Ω

    • Wire up the circuit so that the LED lights up but does not break

Extra

• Can you adjust the circuit so that you have 3 LEDs (R, G, B) lit properly?

• Do you know the difference between a series and parallel circuit?