Final answer:
On a smooth level tabletop paralleling a nearly frictionless air hockey table, a puck would move with constant speed according to Newton's first law, as there would be no significant forces to alter its state of motion.
Step-by-step explanation:
The question relates to the principles of motion in Physics, specifically Newton's first law of motion. When a puck slides across a smooth, level tabletop, and it is specified as a smooth surface implying minimal friction, the behavior of the puck is governed by this law. If we assume the smooth surface is analogous to a nearly frictionless surface like that of an air hockey table with the air turned on, the puck would move with a constant speed because there is no substantial force to slow it down or accelerate it. This consistent motion is in line with Newton's first law, which suggests that an object in motion stays in motion with the same velocity and in the same direction unless acted upon by a net external force.