滑輪

在這星期的科學課，大孩子們探索了物理學的滑輪、施力、省力實驗 (Introduction to Physics Force & Pulley with Experiments)。大家嘗試著做出最升力的方法來拉重力，好玩又有趣!

Higher grade kids have studied Physics Proce and Pulley system this week.  They experiemented with coming up with a pulling system that uses least amount of force but can pull the maximum weight.