出前授業のための「振子」教材の整備: Pendulum Snake と2 点吊り振子

概要

論文の詳細を見る
Education materials of pendulums are reexamined as a candidate for the service seminar to be held at secondary andelementary schools. A simple pendulum will be taught to the fifth grade students at elementary schools as a major subject ofscience, thus new feasibility studies on the teaching plans are much made in the 2009 academic year. Pendulum snake, whichconsists of ten simple pendulums of prescribed length and was recently provided by Prof.Doherty, is now adopted as a very nicedevice for various experiments in the service seminar. Before opening the seminar, some apparatuses of snake pendulum weremade up with various parts and are tested in detail on account of theoretical results and with numerical simulations, which isreported in the fore part of the present paper. In the latter part, three oscillation modes of a bifilar pendulum are experimentallychecked in comparison with the periods estimated theoretically by the linear oscillation theory. The agreement is sufficient indemonstrations, but the device will be improved to hold higher resolution which is available for the service seminar.
2010-01-31