ok, remember how i couldn't quite grasp the concept of energy and after a bunch of you tried explaining things to me i was like 'ok, yeah i get it?' well, i'm lost again. i'm not sure what it is, but the idea confuses me so badly. admittedly i slept through most of my physics class and pretty much just memorized formulas so that i never had to think too hard about things. of course i did ask a few question's about energy and whatnot, but apparently the whole class understood all there was to know about the subject and so found my questions degrading to be asked in their presence... anyways... energy is not a physical thing right? or wait, i just confused myself... ok how about, energy isn't matter, that's a good start. ok, energy comes in different ways though ie, light heat sound. ok, is gravity energy? is speed, or wait, do i mean enertia? and as far as potential energy goes, can potential energy be trasformed into any kinds of energy? or i don't know... i'm just terribly confused.