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学习物理学,首先得掌握测量,认识测量、掌据测量的方法和技能,是学好物理学的基础. 那么,什么是测量?如何认识并掌握测量呢?本文就这些问题作一些总结. 一测量就是比较1.生活中存在各种各样的比较:长短的比较,多少的比较,粗细的比较,冷热的比较,运动快慢的比较等等.而比较又离不开人的感觉,如视觉、听觉、嗅觉、味觉、触觉等等. 2.有些比较,单凭人的感觉来判断,结论并不完全可靠,例如:
To learn physics, you must first master the measurement, know the measurement, and learn the methods and skills of measurement. This is the basis for learning physics. So, what is measurement? How to understand and master the measurement? This article gives some summary of these questions. It is comparison 1. There are various kinds of comparisons in life: length comparison, number of comparisons, weight comparison, hot and cold comparison, comparison of movement speed and so on. And comparison is inseparable from human feelings, such as vision , auditory, sense of smell, taste, touch, etc. 2. Some comparisons, judged by human feeling alone, are not completely reliable, for example: