How Does Increasing Vertical Distance Impact the Force Required to Lift Weights?

[cwhubb]

how does vertical distance affect a given weight? for example...does one lb act heavier, thus requiring more force to raise, the higher its lifted? I want to know if 235lbs lifted 38 inches vertically takes the same amount of force to lift the same amount of weight (235lbs) 48 inches high.
Thank you

 

[Doc Al]

The force is the same, but the work required increases when the distance raised increases.