|Sep1-04, 06:15 AM||#1|
What does this experiment show?
My physics teacher explained an expirment to the class and asked us to find out what it measures, what rules - if any apply, and how that relates to things in real life This is the experiment..
A tank is filled with water and ditergent is added to it and stirred around.
Differant shapes are made using copper wire but they all have the same area.
A 2nd set of shapes is formed this time with a differant area.
The shapes are circle, square, triangle and trapazoid.
Each of the shapes are put into the tank and then removed and then a stop watch counts the number of seconds before, the bubble that is formed pops. This is repeated a number of times and then the 2nd set of shapes with a differant area are put threw the same steps.
Now the question is that i dont quite understand... is what is this measuring?? is it surface tention? or what? could somone please explain this to me and mainly the what rules - if any apply, and how that relates to things in real life.
Thank you heaps for you help
|Sep1-04, 06:44 AM||#2|
I don't know if I can help much - I don't know what you've learnt (so I can't know for show the things this could be asking.)
Here's some hints though:
You're measuring surface tension, correct.
Think about this: The prac is asking you to compare shapes all with the same area, and then compare shapes with different area.
Maybe try doing the experiment, and then having a look at your results. Something might jump out at you then.
When you've got the results, post them here and I'll try and offer a few more hints. (These forums are for help only, not doing questions for people. )
|Sep2-04, 01:33 AM||#3|
hahah hints only ok i get ya well thank you when i get these results i will post them and you can try and help me understand them more
thanks for you help
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