Building Up to Simultaneity (Activity)

Here’s a classroom activity intendedĀ to demonstrate the issue of simultaneity in measuring a stick’s length. StudentsĀ need a calibrated metre stick (I’m trying to get into the habit of spelling it that way), another stick approximately 1/3 m long although the precise length is unimportant, two coins of the same denomination or two small pea-size balls […]

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Conceptual Understanding in Introductory Phyiscs II: Constant, Invariant, and Conserved Quantities

This post is the second in this series. You can read the background on this series in my previous post. I hope the questions in this series promote some discussion of what the goals of contemporary introductory physics should be these days. Here is the next question. It has multiple parts. In one sentence, explain […]

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