“能量坦克”比赛——一项有趣的物理课外活动教育部教学仪器研究所彭实在初中物理教学中，机械能守恒定律是重要内容之一。在进行这一知识的教学时，教师可以利用课外活动课指导学生亲手制作一辆“能量坦克”，然后组织学生进行“能量坦克”比赛，比赛看谁制作的“坦克”... “Energy tank” competition - an interesting physics extra-curricular activity PENG Shi Institute of Teaching Instruments, Ministry of Education In the junior middle school physics teaching, the conservation of mechanical energy is one of the important contents. In the teaching of this knowledge, teachers can use the extracurricular activities to guide students to personally make an “energy tank”, and then organize students to carry out the “energy tank” competition to see who made the “tank”...