Units for the flow rate of water

[deleted-662758]

Hi! I'm doing the project, "making a model of the cardiovascular system", and I'm having some trouble figuring out the flow rate of water. What are the correct units? Also it would be great if you could walk me through a sample problem with figuring out the flow rate, but don't feel like you have to. I'm a little lost being as I've never taken a physics class before. Thanks in advance!

[rmarz]

Dear 4c236236b381447c96c393ba7dfe9fc3 - A great science experiment would be to try to decode your Science Buddies name. Back to flow rate. Simply, flow rate is the measurement of a volume of material in an interval of time. In the case of a liquid like blood or water, it would be expressed in terms of gallons/second, gallons /hour, liters/second, milliters/second or similar. In that you are collecting in a 1/2 cup container, I'd suggest milliters/second be your best starting point. If you collect exactly 1/2 cup of water (about 118 milliters) simply take your time measurement in seconds and convert by dividing the volume of 118 ml by the time in seconds. Flow = Volume/time. Let's say you collect the 118 ml in 6 seconds, simply divide 118 by 6 to get a flow of 19.7ml/second. Good luck.

Rick Marz