多功能平抛运动演示仪的研制及应用

Development and application of multifunctional demonstrator for horizontal projectile motion

核心素养背景下,培养学生学会质疑、创新,通过科学探究建构知识尤为重要.平抛运动是高中物理的一个经典模型,而目前多数中学实验室所提供的平抛运动实验器材都存在观察不便和逻辑缺失的问题;因此,选择常见传感器和LED指示灯研制教具.多功能平抛运动演示仪使用传感器检测小球的运动,通过四个LED指示灯闪亮分别显示小球通过对应传感器的位置,通过移动两组传感器分别检测小球在不同时刻所处的任意竖直和水平位置,弥补了传统器材在控制同步、效果显示上的缺陷,以及传统实验验证过程中的逻辑建立和逻辑分析步骤的缺失.

In the context of core literacy development,it is particularly important to cultivate students'ability to question,innovate,and construct knowledge through scientific inquiry.Horizontal projectile motion is a classic model of high school physics.At present,most of the experimental equipment for horizontal projectile motion produced by middle school laboratories are blamed for the inconvenience of observation and lack of logic.That's why the commongly seen sensors and LED indicators are selected to make the teaching instruments.This multi-functional horizontal projectile motion demonstrator uses sensors to detect the movement position of the ball,and detects the position of the ball passing through the corresponding sensor through four LED indicators flashing.The vertical and horizontal positions of any movement of the ball at different point of time are detected through the moving of the two groups of sensors,which help rid the traditional equipment of the flaws in control synchronization and effect display,and overcome the problem of lacking logic establishment and logic analysis procedures in the traditional experimental verification process.