College-Prep Physics: How can the moon eclipse the sun when the moon is so much smaller? Students investigated the relationship between size and distance for different objects when they have the same apparent size. Some chose to eye-ball it. Others decided to use their phones. Handout is here: Size Distance Ratio LAB 2013
I tried it myself last night:
Conceptual Physics: “Predict and Test” exploration for series and parallel circuits. Handout: SeriesParallelPredictions Post Job 14-2
AP Physics C: Inductors in circuits, sample AP problems.