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.
Thrush produces white spots or lesions in your mouth and on your tongue. Some people may have red spots and soreness inside the mouth instead of the spots. If you brush your teeth and bump against one of these spots, it may break open and bleed.