Objective: Measure the surface tension by the “breakaway” method
To determine the surface tension of a liquid, a blade is immersed horizontally in the liquid and is slowly pulled out upwards while measuring the pulling force. The lamella of liquid that forms at the blade “breaks away” when the force exceeds a certain value. From this force and the length of the blade one can calculate the surface tension.
![Experiment: Surface Tension, 8000575 [UE1080400], Mechanics of Liquids and Gases](/imagelibrary/UE1080400/UE1080400_01_Experiment-Surface-Tension.jpg)
![Experiment: Surface Tension, 8000575 [UE1080400], Mechanics of Liquids and Gases](/thumblibrary/UE1080400/UE1080400_01_1200_1200_Experiment-Surface-Tension.jpg)
![Blue Food Colouring, 1000793 [U8410620], 耗材](/thumblibrary/U8410620/U8410620_01_140_140_Blue-Food-Colouring.jpg)
![双联式三脚架座, 1002835 [U13270], 基底](/thumblibrary/U13270/U13270_01_140_140_双联式三脚架座.jpg)
![不锈钢杆 750mm, 1002935 [U15003], 三脚架杆 支架杆](/thumblibrary/U15003/U15003_01_140_140_不锈钢杆-750mm.jpg)
![带有挂钩的固定夹, 1002828 [U13252], 夹具](/thumblibrary/U13252/U13252_01_140_140_带有挂钩的固定夹.jpg)
![一套10个烧杯，低温型 600毫升, 1002872 [U14210], 玻璃制品](/thumblibrary/U14210/U14210_01_140_140_一套10个烧杯-低温型-600毫升.jpg)
![实验用的起重器II, 1002941 [U15020], 抓子游戏](/thumblibrary/U15020/U15020_01_140_140_实验用的起重器II.jpg)
![精确的测力计（透明）, 1003102 [U20030], 弹簧秤和弹簧](/thumblibrary/U20030/U20030_01_140_140_精确的测力计-透明.jpg)
![Surface Tension Ring, 1000797 [U8412160], 流体力学](/thumblibrary/U8412160/U8412160_01_140_140_Surface-Tension-Ring.jpg)
![游标卡尺，150 mm, 1002601 [U10071], 长度测量](/thumblibrary/U10071/U10071_01_140_140_游标卡尺-150-mm.jpg)
![通用夹, 1002830 [U13255], 夹具](/thumblibrary/U13255/U13255_01_140_140_通用夹.jpg)
![不锈钢杆 1000mm, 1002936 [U15004], 杆](/thumblibrary/U15004/U15004_01_140_140_不锈钢杆-1000mm.jpg)
![装管, 1002622 [U10146], 软管、流量管](/thumblibrary/U10146/U10146_01_140_140_装管.jpg)
![数字化秒表, 1002811 [U11902], 长度测量](/thumblibrary/U11902/U11902_01_140_140_数字化秒表.jpg)
![平台夹, 1002832 [U13260], 夹具](/thumblibrary/U13260/U13260_01_140_140_平台夹.jpg)
![15根安全实验导线套件，75mm, 1002843 [U138021], 电循环](/thumblibrary/U138021/U138021_01_140_140_15根安全实验导线套件-75mm.jpg)
![刻度量筒, 1002870 [U14205], 玻璃制品](/thumblibrary/U14205/U14205_01_140_140_刻度量筒.jpg)
![BNC 接插线连接头, 1002749 [U11258], 实验用导线和电缆](/thumblibrary/U11258/U11258_01_140_140_BNC-接插线连接头.jpg)
![自立式量筒, 1002871 [U14206], 玻璃制品](/thumblibrary/U14206/U14206_01_140_140_自立式量筒.jpg)
![一组螺旋式弹簧用于证明胡克定律, 1003376 [U40816], 螺旋弹簧](/thumblibrary/U40816/U40816_01_140_140_一组螺旋式弹簧用于证明胡克定律.jpg)
![麦克斯韦车轮, 1000790 [U8408305], 振动](/thumblibrary/U8408305/U8408305_01_140_140_麦克斯韦车轮.jpg)