It is time for my HS Physics Class final project. I have about a month to design and build a piece of equipment to show my knowledge of any topic we have covered this year. My idea was to have a basic small magnetic linear accelerator ( just basic type for shooting steel balls such as this website's idea http://http://www.scitoys.com/scitoys/scitoys/magnets/gauss.html [Broken] ) with a set of newton's balls on either side so it would fire a steel ball into one set of newton's balls and the balls would swing up and then come back and knock the ball the other direction into the other set of newton's balls. So essentially the linear accelerator would be an extenstion of the newton's balls. It would probably be constructed with electromagnets but permanent magnets might have to do, I am not sure. My questions are: Would this even work? Is there anything special I need to take into consideration? Would this be too expensive?