A variety of quality Air Tables to demonstrate linear and angular motion, conservation of momentum. moment of inertia, centripetal force and simple and complex harmonic motion and much more.
(Wikipedia excerpt: …”…Air hockey is a Pong-like tabletop sport where two opposing players try to score goals against each other on a low-friction table using two hand-held discs (“mallets”) and a lightweight plastic puck. The air hockey table has raised edges that allow the puck to reflect off horizontally, and a very smooth, slippery surface that further reduces friction by suspending the puck on a thin cushion of air ejected from tiny vent holes built inside the surface. This causes the puck to hover and move easily across the table with little loss of velocity, which simulates the lubricated sliding of an ice hockey puck across a well polished rink, hence the name of the game.
A typical air hockey table consists of a large smooth playing surface designed to minimize friction, a surrounding rail to prevent the puck and strikers (paddles) from leaving the table, and slots in the rail at either end of the table that serve as goals. On the ends of the table behind and below the goals, there is usually a puck return. Additionally, tables will typically have some sort of machinery that produces a cushion of air on the playing surface through tiny holes, with the purpose of reducing friction and increasing play speed. In some tables, the machinery is eschewed in favor of a slick table surface, usually plastic, in the interest of saving money in both manufacturing and maintenance costs.”)