In the 7th grade we don't learn much if any physics, so in the past few years I've been learning quantum mechanics and relativity (without the mathematics). due to the fact that there is a lack of mathematics being thought at this age i'm really not into classical physics. but i do have a question if i threw a 1kg ball in the air at a constant velocity of 10 meters a second (neglecting the acceleration in the first place) how will i know when the object will stop going up and start heading down (done at the surface of the earth so i know it'll fall at a rate of 9.8 m/s2.) and no air resistance. Help!