We describe an educational activity that can be done by using smartphones to collect data in physics experiments aimed to measure the oscillating period of a spring-mass system and the elastic constant of the helicoidal spring by the dynamic method. Results for the oscillating period and for the elastic constant of the spring agree very well with measurements obtained by different methods. We also discuss the error analysis that can be done in an introductory physics laboratory at undergraduate level.

中文翻译：

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通过智能手机动态测量螺旋弹簧的弹性常数

我们描述了可以通过使用智能手机在物理实验中收集数据来完成的一项教育活动，该实验旨在通过动态方法测量弹簧质量系统的振荡周期和螺旋弹簧的弹性常数。振荡周期和弹簧弹性常数的结果与通过不同方法获得的测量结果非常吻合。我们还讨论了可以在本科阶段的入门物理实验室中进行的误差分析。