A centripetal force teaching device designed specifically for middle school and university physics classrooms, which can achieve three functions simultaneously: qualitative demonstration, quantitative exploration, and wireless data collection. Main experiment: Univariate exploration: fixing m and r, changing ω: verifying F ∝ ω ²; Fix m and ω, change r: verify F ∝ r; Fix r and ω, change m: verify F ∝ m. Compare and demonstrate the synchronized rotation of small balls with different parameters on the left and right arms, and compare the hyperbolic curves on the screen, making the phenomenon clear at a glance. Applied to the demonstration of the new course "Circular Motion" in high school and the experiment of "Mechanics" in university.