论文标题
通过跟踪器的流体排水的主场实验室
Lab at Home of fluid draining with Tracker
论文作者
论文摘要
由SARS-COV-2病毒引起的大流行威胁到学校和大学的面对面教学活动。从面对面的课程到在线活动的转变导致活动效率低下。特别是一个关键问题是在没有访问实验室的情况下组织实验室活动。在本文中，我们建议如何通过使学生在家中进行流体排水的物理实验来克服这个问题。换句话说，在家中常用的设备或可以以低价购买的设备实际上是合理的。在目前的工作中，我们对通过容器孔排出的液体进行了实验研究。从分析步骤中，我们引入了一个自由访问的视频分析软件Tracker，以获得准确的结果。有趣的是，我们观察到粘度的影响，导致液体排出时间的延迟。我们的研究表明，可以使用容器的开放空间半径与孔半径为$ \sqrtλ$，可用于确定排水时间。
The pandemic caused by the SARS-CoV-2 virus has threaten the face-to-face teaching activity in both schools and universities. The transformation from face-to-face classes to online activities yielded inefficient outcomes from the activities. Particularly, a key issue was organizing laboratory activities without accessing the labs. In this paper, we propose how to overcome this problem by enabling the students to perform physics experiments of fluid draining at home. In other words, the use of equipment commonly available at home or that can be purchased at a low price is practically plausible. In the present work, we do an experimental investigation of liquid draining through a hole of a container. From an analyzing step, we introduce a freely-accessible video analysis software, Tracker, to obtain accurate results. Interestingly, we observe the effects of viscosity causing a delay of draining time of liquids. Our study shows that a ratio of open-space radius of the container to the hole radius, $\sqrtλ$, can be used to determine a draining time.
