纵观2002年全国各省、市的中考物理题,在考查简单机械知识方面,虽然在试卷中占分较少,但考点分布较为广泛,其考查方式主要有填空、选择、作图、计算等·下面举例如下·例一、填1空(题上海市)如图1所示,轻质杠杆OA可绕O点转动,OA=0·3m,OB=0·2m·A点处挂一个质量为2kg的物体G,B Looking at the physics examination questions of Chinese provinces and cities in 2002, in terms of examination of simple mechanical knowledge, although there are few scores in the examination paper, the examination sites are widely distributed. The examination methods mainly include blank filling, selection, drawing, calculation, etc. The following examples are given below. Example 1 Fill in 1 blank (title of Shanghai) As shown in Figure 1, light lever OA can be rotated around O point, OA=0·3m, and OB=0·2m·A point is linked to a mass of 2kg objects G, B