energy,friction,gravity,pull,force,a push and pull,push or pull,gravity friction,keep it from flowing,force makes carsmove,gravity fricion,the positio,keep it from moving,all of the above,force-a push,friction stops it,pulls stuff,pulls objects toward,push pull energy,the position,force energy pull,potiental energy,ability to do work,push,pull,push and pull ghygyg,force make carmove,life,friction slow done,makes it keep moving,energy is work,it slows down,kinetic energy,it stops movement,friction stops thing,force is push,slows it down,energy, push,gravity,is push,and pull,speed,push or pull.,a push/pull,gravity,,push,it stops it,gravity push or pull,its giving it force,pulls object towards,gravity make go down,slows and objectdown,when you use force,it helps it stop,motion and force,direction,gravity push pull,friction pull,push and pull,