Speed of sound activity - Measure the echo - Homemade Science with Bruce Yeany - Смотреть видео или скачать видео в MP4, музыку MP3 на телефон или компьютер
The speed of sound can be measured with reasonable results by measuring the time of an echo. A couple blocks of wood for clapping together, a stopwatch, and a calculator are the equipment was used for the middle school classroom activity.
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