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.
Individuals who have red spots on their tongue may be experiencing: 1  The tongue turning red is a symptom of a folic acid and/or vitamin B-12 deficiency. 2  Scarlet fever causes the tongue to take on a strawberry appearance. 3  Geographic tongue is a condition that causes small red islands with borders to appear on the tongue.