It is just a means of rearranging the order. Another principle of the physics of Air Hockey is momentum. Momentum is defined as the measure of an object s tendency to continue moving in a particular direction. The momentum of the moving paddle is transferred into the puck. The transfer of momentum between objects occurs when the object is given an impulse.
Impulse is measured by the force multiplied by the change in time.
There is a lot going on with the puck. Forces are applied back and forth, and there are also transfers of momentum. It is definitely the lack of friction that allows the puck to zip across the table with such ease. This makes the game faster and more exciting. Friction is the force that occurs when two surfaces are in contact with each other.