Note that gauge pressure is the difference in pressure due to the surface of the water (the absolute pressure would be the pressure due to the atmosphere at the surface plus the pressure due to the wa...Note that gauge pressure is the difference in pressure due to the surface of the water (the absolute pressure would be the pressure due to the atmosphere at the surface plus the pressure due to the water). Elevator in free fall: If the picture on the left represents the orientation of the wood when the elevator is stationary, which animation correctly depicts the new orientation of the wood while the elevator is in free fall as shown (assume a broken cable)?