Pre Lab
This week's lab will explore Ohm's Law, which associates voltage, resistance, and current within a circuit. Specifically, Ohm’s Law says that the voltage is equal to the current times the resistance of a circuit. In equation form, V = I R
V is voltage or potential difference, measured in Volts. I is the current, the rate of flow of charge, measured in Amperes (Amps). R is the resistance, measured in Ohms. Below are some symbols that are useful for schematic drawings of electrical circuits. These are handy from drawing and reading circuit diagrams.
In the lab this week we will 1) confirm Ohm's Law experimentally across different resistors, 2) explore Ohm's law for a variable voltage source though an eLab, and 3) begin exploring Ohm's law is more complex circuits.
Prior to lab please complete the following:
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A video from my absolute favorite scientist
A couple more videos on Ohm's Law:
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Pre Lab Video
Simulation
Use the simulation embedded at the following link to explore Ohm's Law.
Simulation: phet.colorado.edu/sims/html/ohms-law/latest/ohms-law_en.html
Use the simulation available at the following link to explore the construction of basic circuits.
Simulation: https://phet.colorado.edu/en/simulation/circuit-construction-kit-dc
You may use the simulations to answer the pre lab quiz questions as well.
Pre-Lab Quiz is available at the course Blackboard website
Simulation: phet.colorado.edu/sims/html/ohms-law/latest/ohms-law_en.html
Use the simulation available at the following link to explore the construction of basic circuits.
Simulation: https://phet.colorado.edu/en/simulation/circuit-construction-kit-dc
You may use the simulations to answer the pre lab quiz questions as well.
Pre-Lab Quiz is available at the course Blackboard website
Lab
This week you will be completing the Ohm's Law lab (pg. 27) found your lab manual and a virtual digital lab using PhET simulations.
We will be using the Snap Circuits, digital multimeters, and Capstone software to complete the hands on lab.
We will be using the Snap Circuits, digital multimeters, and Capstone software to complete the hands on lab.
Post Lab
Please post a reflection on the lab experience on the Ohm's Law Lab Reflection discussion board on the course Blackboard site.
Be sure to include:
Be sure to include:
- What you did
- Why you did it
- Any interesting observations
- What you learned from doing the lab