We included 5 of the simple machines in our project
A machine used to increase force
A flat supporting surface tilted at an angle from the vertical direction, with one end higher than the other, used as an aid for raising or lowering a load
An incline ramp cut apart and distanced to increase/decrease the acceleration of an object.
A sloping surface used for raising or lowering heavy masses
A collection of wheels lopped over a rope that is used to lift things.