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测量振动米尺的频率和周期可以使高中学生对振动获得一个很好的先导经验。实验器材为:米尺一支,停表(或计数手表)一只,软笔一支,胶布一张,白纸若干张.实验由四个(或四个以上)学生合作进行. 用胶布将笔垂直于米尺固定在尺的一端上.四个学生的分工是:一个学生将米尺的一端压在桌上,先让尺伸出桌外70厘米。一位学生将尺的伸出部分向下扳,
Measuring the frequency and period of the vibratory meter can give high school students a good pilot experience with vibration. Experimental equipment: one meter, one stop watch (or count watch), one soft pen, one tape, and several blank sheets. The experiment was conducted by four (or more than four) students in cooperation. The pen is fixed to the end of the ruler perpendicular to the meter. The division of the four students is: A student presses one end of the meter rule on the table, and first lets the ruler extend 70 cm outside the desk. A student pulled the extension of the ruler down.