Moving Water

  • Thread starter ryanbeech
  • Start date
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Main Question or Discussion Point

What do you call the force that enables water to keep coming after you suck on a pipe just as long as you keep the end of the pipe lower than the water level of the source. Is it the pressure difference or is it another force.
 

Answers and Replies

243
1
I think its called "capillary action", and its due to pressure differences.
 
172
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You are correct ryanbeech. It is the pressure difference between the upper and lower ends that keeps the liquid flowing. It's called a siphon action.
 

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