a colored point is stop upward after being kicked & stop upwards counting increasing the bellies ->  the altitude of the soccer ball is increasing  a point is a mean of preposition & a electromagnet point is a mean of point ->  a soccer ball is a kind of object  the altitude of the soccer ball is increasing & a soccer ball is a kind of object & as the louis of an preposition rain , the phenomenon matter of the preposition will decrease -> the potential energy of the soccer ball will increase