To show and then play a video clip, click on the arrow or the video clip title/description. Repeat to hide it. Note: Most of this lesson was part of USE L2 during the semester when these video clips were made.

USE L3 Video Clip 1: Group discusses model to make prediction about charged acrylic near base of uncharged electroscope

USE L3 Video Clip 2: Group discusses CQ 3-1

USE L3 Video Clip 3:  Group discusses their model after watching movie of experiment

USE L3 Video Clip 4: Class discusses charge state of tinsel when + acrylic is held near end of can

USE L3 Video Clip 5: Class explains what happened when tinsel touched charged acrylic