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1.对联(1)力有大小、方向、作用点 电具强弱、正负、三效应(三效应指电流的热效应、磁效应和化学效应)(2)同性相吸是自然规律 异性相斥乃天然特性(3)重力压力摩擦力力力不独存 动能势能机械能能能皆做功(4)杯中冰水、水结冰、冰温未降 盘内水冰、冰化水、水温不升(5)斜面长、长斜面、面长不费力 滑动轮、动滑轮、轮动难省功(6)日月星球逞宇宙之大 分子原子显粒子之微
1. Couplet (1) Force has strength, weakness, positive and negative, and triple effects (magnitude, direction, action point thermal effects, magnetic effects, and chemical effects). (2) Same-sex attraction is a natural law. Natural characteristics (3) Gravitational pressure Friction force Not alone Mobility Potential energy Mechanical energy Energy is all work (4) Ice water in the cup, water ice, ice temperature does not fall within the water ice, icing water, water temperature does not rise ( 5) Long slope, long slope, long face, effortless sliding wheel, moving pulley, rotating hard work (6) Sun, moon, and stars