探究“夹水玻璃”难以分开的原因与影响因素

STUDY ON REASONS AND INFLUENCING FACTORS FOR THE DIFFICULTY OF SEPARATING THE GLASS WITH WATER

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.