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. In cases where an infection is caused by yeast or candidiasis, the tongue may exhibit creamy white lesions. The Mayo Clinic website reports that the tongue may also have red, bleeding areas and be very sensitive to the touch.