２００１年１２月第１版，２００２年４月第１次印刷的初中《物理》第二册教材（以下简称新教材）是在１９９４年１０月版，２００１年４月第１次印刷的初中《物理》第二册教材（以下简称原教材）的基础上重新研究和修改的。与原教材相比，新教材在内容、章节和知识层次上都做? The first edition of “Physics”, the second edition of the textbook (hereinafter referred to as the new textbook), which was printed in the first edition of December 2001, the first edition in April 2002 and the first edition in April 2002, was published in the October 1994 edition and the first edition of the “ Physics ”second volumes of textbooks (hereinafter referred to as the original textbook) based on the re-study and revision. Compared with the original textbook, the new textbook, content, chapters and knowledge levels are done?