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.
Having red spots or dots on the back of your tongue can be due to a number of causes. The common ones being strep throat, trauma, allergies, canker sores, syphilis, cold sores, Kawasaki disease (in children), leukoplakia, scarlet fever, throat cancer, among others.