In response to the experimental requirements of the new curriculum standards for "mechanical energy conservation" and "curved motion" in high school physics, using the intuitive method of "one car, three tracks, same screen racing", students can see the entire process of "height velocity" energy conversion within 3 minutes. Simultaneously release at the same height to verify the influence of orbit shape on terminal velocity. Teaching scenario: Classroom group exploration (3 groups x 2 people); Interactive science popularization exhibition area (with over 500 daily visitors, free of duty); Innovation Competition: Students 3D print new tracks on their own and challenge the fastest curve.