Wedges, lever, and Incline Plane

I learned that the placement of the fulcrum is vital. It is a lot easier if it is closer to you. It decides whether or not the relationship is Direct or Inverse. Direct is when one goes up the other goes up, and inverse means when one goes up the other goes down. I discovered incline planes are used as ramps, and an incline plane would be easier to use if it was long, and some factors that could effect it would be the weather.