Day 150: Final Project, Curved Mirror Lab, & Activity Series Problems

AP Physics 1: Final Project

Students worked on proposals for their final projects. I’ve got one group that’s done some preliminary testing on a fishing line and found when pulled horizontally, it took less force to break than it is rated for. They’ve got some ideas about how the bending of the rod reduces the force on the line that they want to dig into.

Physics: Concave Mirror Lab

Students collected data for a relationship between the object distance and the image distance for a concave mirror. Its tricky for students to find the spot that makes a nice image, so the data is a little messy. For next year, I’m toying with doing ray diagrams first, then sketching ray diagrams to collect some theoretical data prior to the lab. I need to think some more about how that would play out.

concave mirror lab.jpg

Chemistry Essentials: Activity Series Problems

Students worked on some problems using an activity series to determine whether a given single replacement reaction is likely. A lot of students struggled with identifying what is doing the replacing and what is getting replaced; I wonder if using a manipulative would have helped.

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