Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Surface Tension?

  1. Jun 9, 2005 #1

    Just a quick question:

    How do you meausre surface tension of a liquid? WHat meathods are used and how do the units reflect the data.


    Derek Mohammed
  2. jcsd
  3. Jun 9, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    Last edited: Jun 9, 2005
  4. Jun 9, 2005 #3
    What do the units stand for? mN/m??? Newton metres/ Metres??

  5. Jun 10, 2005 #4
    mN=10^-3N and the denominator is in metres
  6. Jun 10, 2005 #5


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Presumably you could measure the velocity and wavelength of the "ripples" in a liquid to measure its surface tension, since it provides the restoring force for some waves on the surface. I'm sure there are other ways, though.
  7. Jun 10, 2005 #6
    Numerically Surface Tension (T):

    [itex]T= \frac{F}{l}[/itex]

    Infact, if you consider a unit length line on the surface of the water and measure the force on it from water on one side will give you Surface Tension. But thats not the 'experimental
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Surface Tension?
  1. Surface Tension (Replies: 3)

  2. Surface tension (Replies: 7)

  3. Surface tension (Replies: 26)

  4. Surface tension (Replies: 12)

  5. Surface tension (Replies: 3)