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2001年物理高考(全国卷)第22题是一道卷扬机借助活塞从“井”中汲水的力学综合题。该题貌似平庸,却内涵丰富,对考生思维品质提出较高要求透过该题翔实严谨的陈述,破译其所描写的独特的物理过程,建立正确的拉力做功的物理图景,绝非易事。该题不偏不怪,无疑是一则漂亮的压轴题。
The 22nd issue of the Physics National College Entrance Examination in 2001 (National Vol.) is a mechanical synthesis problem where a hoist wins water from a “well” with the help of a piston. The title is seemingly mediocre, but it has a rich connotation. It requires a high level of scrutiny for the candidate’s thinking quality. Through accurate and rigorous statements on the subject, it is difficult to decipher the unique physical process it describes and establish a physical picture of the correct pulling power. The question is not biased, it is undoubtedly a beautiful ending question.