Preview - Netlogo Investigations In Electromagnetism (Niels)

Testing Prediction of Wire Width

Use the model to test your hypothesis about how wire width will impact current.

To use the model:

1) Click SETUP then GO. You will start to see electrons flow through the wire, see data readings on the monitors, and a plot form on the graph. 

2) If you'd like to change the wire's width, select 2 or 1 from the drop-down menu WIRE-WIDTH. 

Questions

Please answer the questions below.

Try running the model with different wire widths.

First, run FOUR trials of the model with a voltage difference of 1, wire width of 1, and measure the current after 100 ticks (it's okay if you can't get it exactly at 100 ticks!). Once the ticks counter has gotten to your desired time for a trial, hit GO again to stop the model. Then run FOUR trials of the model with a voltage difference of 1, wire width of 2, and measure the current after 100 ticks. 

Input the data collected in the table below. Use the green plus in the upper right corner to add more rows to the table so that you can collect data for all 8 of your trials.

When the voltage is set at 1 and the samples are about 100 ticks long, how does the wire width impact current? Support your explanation with evidence from the data you collected from the model.

Please wait for teacher instruction before moving on 

Note: Draw your sketch in the sketchpad below

What is the average current you found by aggregating data with your class?

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.