Friction

We investigated friction today. We found that in the case of sliding objects down a ramp, the more friction, the higher the ramp had to be, to enable the object to slide down. The less friction there was, the lower the ramp had to be. In our investigation, the match box car went down when the ramp was the lowest, and the eraser went don when the ramp was the highest. Friction has to do with objects/surfaces rubbing together.