What are some experiments combining centripetal force and water properties?

[shirel]

Hi,

I'm looking for ideas for experiments, which use both centripetal force and water properties.

(I need it as a part of my project in physics)

Any suggestion would be greatly appreciated.

 

[Meir Achuz]

Is swinging a full bucket in a vertical circle too standard?
Another is to demonstrate how quickly sandy water becomes clear in a centrifuge.
Then there is the parabola formed when you stir the tea in a circle.

 

[shirel]

Hi clem, first of all thank you very much!

Unfortunately, my physics teacher has already shown us these few execrsies in class, as an example for the excersises I should demonstarte..

If you/ someone else still have more ideas, i'll really appreciate your help.

 

[Dadface]

Apparatus may be a problem so I am thinking along the lines of using a garden sprinkler, the type that rotates when water is forced out of two nozzles facing in opposite directions and at the ends of a rotating arm.These can be picked up very cheaply at a D.I.Y.shop or a garden centre.There is some really meaty physics involved in this and you may have to do some of your investigation outside the lab.

 

[shirel]

Sounds good, thank you!

 

[atyy]

Apparatus may be a problem so I am thinking along the lines of using a garden sprinkler, the type that rotates when water is forced out of two nozzles facing in opposite directions and at the ends of a rotating arm.These can be picked up very cheaply at a D.I.Y.shop or a garden centre.There is some really meaty physics involved in this and you may have to do some of your investigation outside the lab.

There's a famous Feynman story about whether if you suck the water in the thing will turn in the opposite direction ...

eg. http://adsabs.harvard.edu/abs/1988AmJPh..56..307H (I didn't read, it's just a link to get a search started in case you are interested.)

 

[atyy]

Then there is the parabola formed when you stir the tea in a circle.

Unfortunately, my physics teacher has already shown us these few execrsies in class, as an example for the excersises I should demonstarte..

Were you really shown that it is a parabola?

 

[shirel]

My teacher has already shown it through a video clip (on the computer), as an example. So I have to make other experiments..