[quote author=jpm1999 link=topic=2755.msg10023#msg10023 date=1370470553]
  What I would like to see is for it go to a different (lower) position on the ramp if the spring constant is decreased (also without friction).  These two setting for the spring would be enough to show the difference I am looking for.
The total energy should be conserver if there is no friction.
Which means that it should always go to the same height even the spring constsnt was modified by user.
(It is the maximum compression of the spring will be changed.)

May be I mis-understood what you mean. Please explain it in more detail.

[quote]  I hope I'm not being too frustrating for you.
No problem.  I hope the simulatin created is really what you need for your teaching. :D