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从以往的高考来看,落实机械能守恒部分的高频考点应该从机械能守恒的判断与机械能守恒定律的应用这两个角度展开.当然前提是要掌握好重力势能与弹性势能、机械能守恒定律的相关知识点.考点一、机械能守恒的判断例1(多选)(2014·安庆模拟)如图1所示,下列关于机械能是否守恒的判断正确的是().A.甲图中,物体A将弹簧压缩的过程中,A机械能守恒B.乙图中,A置于光滑水平面,物体B沿光滑斜
From the previous college entrance examination, the implementation of the conservation part of the high-frequency mechanical test point should be judged from the conservation of mechanical energy and the application of the law of conservation of mechanical energy from two angles, of course, the premise is to master the gravitational potential and elastic potential, the law of conservation of mechanical energy Knowledge point. Test points a, the conservation of mechanical energy Example 1 (multiple choice) (2014 · Anqing simulation) As shown in Figure 1, the following is the conservation of mechanical energy to determine the correct (). A. A figure, the object A During the compression of the spring, the mechanical energy A is conserved B. In the figure B, A is placed on a smooth water level and the object B is inclined