论文标题
由于耗时驱动球在水喷气机上驾驶时的振荡 - 这是国际物理学家2019年的具有挑战性的问题
Oscillations due to time-delayed driving of a ball in a water jet -- a challenging problem of the International Physicists' Tournament 2019
论文作者
论文摘要
2019年国际物理学家锦标赛（IPT）解决了17个具有挑战性的问题。在本文中，我们介绍了这些任务之一的实验和理论方法。当被上面的水击中时，放置在硬且表面上的球可以显示振荡运动。为了解释振荡，引入了理论模型，并将其预测与实验测量进行了比较。此外，本文很快就会描述IPT本身的结构，以及在Erlangen University成立的新创新研讨会的想法，以准备和帮助学生参加国际物理学家的比赛。此外，详细讨论了大学物理教育等物理锦标赛的教育相关性。
The International Physicists' Tournament (IPT) 2019 dealt with 17 challenging problems. In this article, we present experimental as well as theoretical approaches exemplarily to one of these tasks. A ball placed on a hard and at surface can show oscillation movement when being hit by a jet of water from above. To explain the oscillations, a theoretical model is introduced and its predictions are compared to the experimental measurements. Furthermore, the structure of the IPT itself is characterized shortly in this article, as well as the idea of a new and innovative seminar which was set up at Erlangen University to prepare and assist students in taking part in International Physicists' Tournament. Furthermore, the educational relevance of physics tournaments like IPT for physics education at university is discussed in detail.
