摘要
文章基于'Young-Laplace'方程对夹水玻璃更难分开现象和影响因素进行理论分析。通过设计具体的实验装置,对该现象的玻璃板面积、水的温度、玻璃的粗糙程度等因素分别进行了实验探究。实验结果表明,分开夹水玻璃的力与玻璃板面积成正比,玻璃板面积越大玻璃越难分开;分开玻璃的力与水的温度呈线性关系,温度越高力越小,玻璃越容易分开;玻璃粗糙程度越大玻璃越容易分开。实验结果与理论分析一致。从而得到结论,分开夹水玻璃的力可以用'Young-Laplace'方程描述,其大小与玻璃板面积正相关,与水的温度、玻璃的粗糙程度负相关。
Based on Young-Laplace equation,the phenomena and influencing factors of the difficulty to separate the glass with water are studied theoretically.By designing specific experimental devices,experimental explorations are made on factors that affected the phenomenon,including the area of the glass plate,the temperature of the water,and the roughness of the glass.The experimental results show that the force separating the glass with water is proportional to the area of the glass plate.The larger the area of glass plate is,the more difficult it is to separate glass.The force of separating glass is linear with the temperature of water.The higher the temperature is,the smaller the force is.In addition,the rougher the glass is,the easier it is to separate glass.The experimental results are consistent with the theoretical analysis.It is concluded that the force separating the glass with water can be described by the'Young-Laplace'equation.The force value is positively correlated with the area of the glass plate,and negatively correlated with the temperature of the water and the roughness of the glass.
作者
翟志康
郭子玥
樊代和
魏云
ZHAI Zhikang;GUO Ziyue;FAN Daihe;WEI Yun(National Demonstration Center for Experimental Physics Education,Southwest Jiaotong University,Chengdu Sichuan 611756;School of Transportation and Logistics,Southwest Jiaotong University,Chengdu Sichuan 611756;School of Physical Science and Technology,Southwest Jiaotong University,Chengdu Sichuan 611756)
出处
《物理与工程》
2019年第5期78-81,共4页
Physics and Engineering
基金
西南交通大学个性化实验(GX201812142)
中国高等教育理科教育专业委员会高等理科教育研究课题
西南交通大学2018年本科教育教学研究与改革项目(1802034
1801012)