Antichamber has a variety of forces that affect the workings of puzzles.
Gravity is experience by the player and open Puzzle Doors. It is the basis for many puzzles where jumping is involved or falling is a hazard. While gravity causes objects to accelerate, no damage is taken upon hitting the ground.
Cubes are not affected by any force applied to them and oppose forces applied to them. Cubes remain stationary after being placed but can be moved by signalling movement with a Yellow Matter Gun or better. When in motion the cubes provide a force that causes the player and some mechanisms to be moved.