摘要
重新解答了第26届全国中学生物理竞赛复赛第3题第l小题,指明了该题的参考解答(标准答案)错误.
This article re - explained the question of Ⅲ. (1) of the 26th Session of National Physics Contest and pointed out that the key to the problem provided (i. e. the standard key) is wrong.
出处
《物理通报》
2014年第9期119-120,共2页
Physics Bulletin
关键词
物理竞赛试题
动能
势能
机械能守恒
the physics eontest
kinetic energy
potential energy
conservation of mechanical energy