A centripetal force (from Latin centrum center and petere to seek) is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.
There are a number of things that can cause a whitish coating or white spots to develop on the tongue, including the f ollowing: 1  Leukoplakia. 2  Oral thrush. 3  Oral lichen planus.
Discover the cause of these spots on your tongue including those on the tip, side and under your tongue. Black spots on tongue refers to small, tiny or little black or dark dots on your tongue that could be on your entire tongue surface, on the tip of your tongue, side or under your tongue.