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A High-Resolution Stopwatch for Cents


Physics Education Volume 46, Number 4, ISSN 0031-9120

Record type: ARTICLE


A very low-cost, easy-to-make stopwatch is presented to support various experiments in mechanics. The high-resolution stopwatch is based on two photodetectors connected directly to the microphone input of a sound card. Dedicated free open-source software has been developed and made available to download. The efficiency is demonstrated by a free fall experiment. (Contains 4 figures.)


Gingl, Z. & Kopasz, K. (2011). A High-Resolution Stopwatch for Cents. Physics Education, 46(4), 430-432. Retrieved May 26, 2019 from .

This record was imported from ERIC on April 19, 2013. [Original Record]

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