{"id":1193,"date":"2023-09-15T08:34:28","date_gmt":"2023-09-15T15:34:28","guid":{"rendered":"https:\/\/dornsife.usc.edu\/lecture-support-lab\/?page_id=1193"},"modified":"2023-09-18T11:18:15","modified_gmt":"2023-09-18T18:18:15","slug":"surface-tension","status":"publish","type":"page","link":"https:\/\/dornsife.usc.edu\/lecture-support-lab\/fluids\/surface-tension\/","title":{"rendered":"Surface Tension"},"content":{"rendered":"\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n      \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <h2><strong>F.5(1) &#8211; Film of Soap <\/strong><\/h2>\n<p>A wire ring 10 <em>cm<\/em> in diameter has a flexible loop of thread tied to it. It is dipped into a soap solution and removed. A thin film is formed in which the thread floats freely.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-1240 aligncenter\" src=\"https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_1-300x184.jpg\" alt=\"\" width=\"300\" height=\"184\" srcset=\"https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_1-300x184.jpg 300w, https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_1.jpg 317w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>F.5(2) &#8211; Surface Tension Apparatus<\/strong><\/h2>\n<p>A cork and sinker are connected by a stiff wire to a wire ring. In a large beaker filled with water, the set is buoyant with the ring high above the water. Now push the set down into the water and allow it to rise again, slowly. When it reaches the surface, the ring will not break the surface: it will remain submerged due to the water&#8217;s surface tension.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-1242 aligncenter\" src=\"https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_2b-234x300.jpg\" alt=\"\" width=\"179\" height=\"229\" srcset=\"https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_2b-234x300.jpg 234w, https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_2b.jpg 247w\" sizes=\"(max-width: 179px) 100vw, 179px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1242 aligncenter\" src=\"https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_2b-234x300.jpg\" alt=\"\" width=\"179\" height=\"229\" srcset=\"https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_2b-234x300.jpg 234w, https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_2b.jpg 247w\" sizes=\"(max-width: 179px) 100vw, 179px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>F.5(3) &#8211; Capillary Apparatus<\/strong><\/h2>\n<p>There are two sets of four interconnected capillary tubes of varying diameters. One set is filled with colored water, the other set is filled with mercury. They show the dependence on the height of the capillary rise of liquids on the tube bore. Water rises higher in the smaller diameter tubing, whereas mercury is lowered in the smaller diameter tubing.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1244 aligncenter\" src=\"https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_3-300x249.jpg\" alt=\"\" width=\"252\" height=\"209\" srcset=\"https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_3-300x249.jpg 300w, https:\/\/dornsife.usc.edu\/lecture-support-lab\/wp-content\/uploads\/sites\/280\/2023\/09\/f5_3.jpg 336w\" sizes=\"(max-width: 252px) 100vw, 252px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>F.5(4) &#8211; Centripetal Force<\/strong><\/h2>\n<p>A large beaker filled with water is placed on a rotating platform. When the platform rotates, centripetal force acting on the water&#8217;s surface will cause it to form a paraboloid.<\/p>\n<p>&nbsp;<\/p>\n\n\n\n<\/div>\n\n\n  <\/div><\/div>\n\n\n\n  \n  \n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--two-column-ctas \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--two-column-ctas\"\n    \n      >\n\n    \n      <div class=\"group\">\n\n                  \n<div class=\"f--field f--section-title\">\n\n    \n  <h2>\n          Back to Fluids\n      <\/h2>\n\n\n<\/div>\n      \n              <ul>\n                      <li>\n                  \n<div class=\"f--field f--link\">\n\n    \n    \n  \n<a \n  class=\"link\"\n  href= https:\/\/dornsife.usc.edu\/lecture-support-lab\/fluids\/\n    aria-label=\"Read more about Fluids\"  \n>\n    Fluids \n  <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 35 35\" enable-background=\"new 0 0 35 35\" width=\"25\" height=\"25\" xml:space=\"preserve\"><polygon fill-rule=\"evenodd\" clip-rule=\"evenodd\" fill=\"#000\" points=\"19.3,27.5 29.3,17.5,19.3,7.5 16.3,10.4 21.4,15.4 6.7,15.4 6.7,19.6 21.4,19.6 16.3,24.6 \"\/><\/svg>\n<\/a>\n\n\n<\/div>\n            <\/li>\n                  <\/ul>\n      \n    <\/div>\n      <div class=\"group\">\n\n                  \n<div class=\"f--field f--section-title\">\n\n    \n  <h2>\n          Back to Home\n      <\/h2>\n\n\n<\/div>\n      \n              <ul>\n                      <li>\n                  \n<div class=\"f--field f--link\">\n\n    \n    \n  \n<a \n  class=\"link\"\n  href= https:\/\/dornsife.usc.edu\/lecture-support-lab\/\n    aria-label=\"Read more about Home\"  \n>\n    Home \n  <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 35 35\" enable-background=\"new 0 0 35 35\" width=\"25\" height=\"25\" xml:space=\"preserve\"><polygon fill-rule=\"evenodd\" clip-rule=\"evenodd\" fill=\"#000\" points=\"19.3,27.5 29.3,17.5,19.3,7.5 16.3,10.4 21.4,15.4 6.7,15.4 6.7,19.6 21.4,19.6 16.3,24.6 \"\/><\/svg>\n<\/a>\n\n\n<\/div>\n            <\/li>\n                  <\/ul>\n      \n    <\/div>\n  \n\n  <\/div><\/div>\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--spacer \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--spacer\"\n    \n      >\n\n    \n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":584,"featured_media":0,"parent":1181,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-content-detail.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1193","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - 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