Alan Gleue, physics teacher at Lawrence High School in Lawrence, Kansas, called our tech support line with a challenge. He wanted to be able to use Vernier sensors to investigate resistivity in copper wire. The issue was troubling Alan – how to measure small changes in voltage with enough precision to be able to see the relationship between wire length, cross-sectional area, and resistance.
Brian Lamore, physical science teacher at the Chinquapin School in Highlands, Texas, wanted to get his students to investigate which battery was the best. Based on their experiences (and with a little help from advertising) the students made their predictions.