Air Track
Purpose
A nearly frictionless glider on an air track demonstrates constant velocity motion (Newton's First Law) and elastic collisions. The track is marked at regular intervals for quantitative measurement of position and velocity.
Figure 1:
The air track with two gliders and colored flags for visibility. Yellow tape along the rail provides position markings for quantitative measurements.
Figure 2:
The air blower unit sits behind the track. The pink-flag glider is in motion (note the blur), demonstrating constant velocity on the nearly frictionless surface.