中学校理科における実験教材としてのボルタ電池に関する研究 : 適切な起電力を得るための実験条件

概要

論文の詳細を見る
The Voltaic cell is used as a teaching material in lower secondary school science. However, it often fails when a teacher experiments on the cell in a class of the science. In the present study, to obtain the suitable conditions for the Voltaic cell, we examined the effects of concentrations and amounts of hydrochloric acid solution on the electromotaive force using an electronic melody and two kinds of motors. The largest electromotive force was seen in the combination of electrodes of copper and zinc. When electronic melody was used, it rang effectively in the 70 ml of 1-5% hydrochloric acid solution (in 100 ml beaker). In the case of motors, an efficient rotation was observed in 300 ml of 3-5% hydrochloric acid solution (in 300 ml beaker).
熊本大学の論文
2007-11-30