Gravity well model going through a sphere

[ARMYnerdGuy]

would a gravity well resemble a angle food cake pan well traveling through a sphere? being you start outside the well. travel inward towards the core then outwards to the edge of the well again. wouldn't this also mean gravity wells would be replaced with pressure wells at the core?

 

[phinds]

would a gravity well resemble a angle food cake pan well traveling through a sphere?

I think if you draw the curve you are talking about and then think about, you'll see that the answer is quite obvious.