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从近几年全国各地的中考试题可以看出：1．力学计算题一般为一道压轴题，分数占全卷总分的6yo左右；2．知识内容大致为：（1）有关密度的计算问题；（2）有关浮力和压强的计算问题；（3）有关功和功率的计算问题；（4）有关滑轮组的计算问题．3．题目特点是一般具有小范围的综?
From the examination questions in various parts of the country in recent years, we can see: 1. The mechanical calculation problem is generally a final axis question, and the score accounts for about 6 yo of the total score of the whole volume; The knowledge content is roughly as follows: (1) Calculation of density; (2) Calculation of buoyancy and pressure; (3) Calculation of related work and power; (4) Calculation of pulleys. 3. The topic is characterized by generally having a small range of integration.