Mass and Newtons 1st Law

There are a lot of examples that have inertia and newtons 1st law. One example is a beach ball and rock.Even though the beach ball is bigger the rock still weights more.Also a parked car doesnt move unless you move it. The inertia does not want to move. Also according to newtons 1st law as long as the object is at rest it will want to stay at rest.Also when you play soccer the ball will stay at rest until you apply a force to the ball. If i kicked a soccer ball the ball would continue to move if it was a fictionless surface because one the ball started to move it no wants to stay in  motion.