用题目给出的有限实验器材去测量某物质的密度,并要求写出实验步骤和密度表达式,是近些年频繁出现在初中物理各类考试中的新题型,由于受所给器材的限制,要测的物质密度一般都不能用常规方法直接测出,因而这类题目有一定难度。同学们,只要灵活运用密度公式,或借 Using the limited experimental equipment given in the subject to measure the density of a substance, and requesting the writing of experimental procedures and density expressions, is a new type of question that frequently appears in junior high school physics examinations in recent years, due to the given equipment Limitation, the density of the material to be measured can not be measured directly by conventional methods, so this type of problem has a certain degree of difficulty. Students, as long as they use the density formula flexibly, or borrow