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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