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摩擦力是如何産生的?
摩擦力是如何産生的?
更新时间:2026-06-23 01:15:09

  1、物體間相互接觸;

  2、物體間有相互擠壓作用;

  3、物體接觸面都粗糙;

  4、物體間有相對運動趨勢或相對運動;

  5、增大有益摩擦的方法;

  (1)增大接觸面粗糙程度;

  (2)增大壓力;

  (3)化滾動摩擦為滑動摩擦;

  6、減小有害摩擦的方式;

  (1)用滾動摩擦代替滑動摩擦;

  (2)使接觸面分離【在物體接觸面形成一層氣墊或磁懸浮】;

  (3)減小壓力;

  (4)減小物體接觸面粗糙程度。

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