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Surface tension formula!! NEED help now!
Posted: Sun Feb 06, 2011 5:13 pm
by NMGmonarchs
In "measuring the surface tension of water" it gives you the formula F=2sd, but i dont know how to find F (force) so that i can rearrange the problem to find the surface tension. Can anybody help me???
Re: Surface tension formula!! NEED help now!
Posted: Mon Feb 07, 2011 12:07 am
by deleted-71417
Hi,
Here is a Science Buddies project writeup that describes how to measure surface tension. It should answer your question:
https://www.sciencebuddies.org/science- ... p012.shtml
Good luck and have fun with it!
Best regards
Barrett L Tomlinson
Re: Surface tension formula!! NEED help now!
Posted: Thu Feb 10, 2011 11:35 am
by deleted-71709
In the experimental procedure that Barrett referenced, pay attention to sections 4c and 4d. They tell you how to determine the weight you put in the balance pan. Once you convert this weight to Newtons, that becomes the force "F" in the equation. Carefully follow the remaining step in the procedure to learn how to convert the force to Newtons.