I have to determine what's wrong with the student's graph (and what principles the student is understanding).
It will be the inverse of that graph... that is, there will be a peak initially (since we will have the greatest change in water until we reach the middle), and then we will have extremely little change as there is a lot of volume in the middle, and finally it will peak as the height will increase rapidly.
Any other thoughts?
October 29th 2009, 11:29 AM
I asked this question in the beginning of the month and it's still intriguing me. I'm baffled as to what the graph could actually be. Clearly the graph shown is wrong, because then it would imply there is no water, but how would we show a rapid increase followed by a rapid decrease without showing there is no volume?
October 29th 2009, 02:34 PM
A vase is one foot tall.
Imagine you are filling the vase with water.
Assuming the water pours at a constant rate,
it takes 10 seconds for the vase to be filled.