This tidal force is a secondary effect of the force of gravity and accounts for the tides. It arises for the reason that gravitational force exerted through one body on another is not constant across that; the nearest side is attracted more strongly than the farthest side. As a result, the tidal pressure is differential. Take into account the gravitational attraction of the moon on this oceans nearest this moon, the solid Earth plus the oceans farthest from the moon.
Tidal Force
