With Arduino UNO as the main control unit, the moving car is loaded with an intelligentmeasurement system.The resultant external force is detected by a force sensor, while the distance between thecar and the fixed baffle is measured by an ultrasonic sensor in real time.As a result,the speed and accelerationare calculated from the distance data.The traditional experiment to verify Newton's Second Law has beenintelligently improved and designed. The system is easy to operate ,accurate in measurement,and can displathe experimental results in real time , which greatly improves the experimental efficiency on the basis offollowing the traditional experimental process.