论文标题
教一个旧球的新技巧：另一个看能量学，运动探测器和弹跳橡胶球
Teaching an Old Ball New Tricks: Another Look at Energetics, Motion Detectors and a Bouncing Rubber Ball
论文作者
论文摘要
运动传感器下的弹跳橡胶球是入门物理实验室的经典。它通常用于测量由于重力引起的加速度，也可以证明能量保存。通过观察到每次反弹的球上升到较低的高度，提出了“能源损失的主要来源？”的问题。并要求学生从位置数据中构建自己的测量值，以创建丰富的实验室经验，从而导致学生对数据的正确分析和模型的实施进行良好的讨论。回报是学生的理解，在定义上看似很小的差异可能会导致结论截然不同。
A bouncing rubber ball under a motion sensor is a classic of introductory physics labs. It is often used to measure the acceleration due to gravity, and can also demonstrate conservation of energy. By observing that the ball rises to a lower height upon each bounce, posing the question "what is the main source of energy loss?" and requiring students to construct their own measured values for velocity from position data, a rich lab experience can be created that results in good student discussions of proper analysis of data, and implementation of models. The payoff is student understanding that seemingly small differences in definitions can lead to very different conclusions.
