This is a 3 page worksheet that corresponds with the Jason Coaster Creator found online (link included on worksheet). Although other worksheets can be found online relating to this virtual lab, I found them too difficult for my students. I use this for a 9th grade special needs class, but it can certainly be used for grades 4+. It's a word doc, so you can make adjustments as necessary.
I have my students complete this after learning about kinetic energy, potential energy and friction, and before we do a roller coaster building lab.