论文部分内容阅读
天平是初中学生应该熟练掌握的最基本测量工具,通常情况下是用来称物体质量的,除此之外,也有其他方面的特殊用处,只要你巧妙地运用天平,还可以测出另外一些物理量。一、测长度如:用天平测出一卷细铜丝的长度。选用器材:天平(含砝码)、剪刀、刻度尺、细铜丝。具体方法:1.用天平称出这一卷细铜丝的总质量;2.用剪刀剪下一段铜丝,用刻度尺量出其长度,然后用天平称出其质量;3.这卷细铜丝的总长度就可以计算出来。
Balance is the most basic measurement tool junior high school students should be proficient in, usually used to describe the quality of objects, in addition, there are other special uses, as long as you skillfully use the balance, you can also measure some other physical quantities . First, measuring the length of such as: the balance measured by a roll of thin copper wire length. Selection of equipment: balance (including weight), scissors, scale, fine copper wire. The specific method: 1. Weigh out the balance with a balance of the total mass of fine copper wire; 2. Cut a section of copper wire with a scissors, measuring the length with a scale, and then weigh the quality of the balance; 3. The thin The total length of the copper wire can be calculated.