电动车因其节能、环保、简洁、实用而人们的喜爱,所以在我国迅速普及,骑电动车已成为人们的时尚。在电动车中涉及到电学、力学、光学、热学等许多方面的物理知识,我下面仅从电学、力学两个方面举例分析说明。一、电学方面1.蓄电池是电动车动力的源泉,常用的是硫酸铅电池,分为36伏和48伏两种。它工作时首先将电能转化成化学能储存起来,在 Electric cars because of its energy saving, environmental protection, simple, practical and people's favorite, so the rapid popularization in our country, riding electric cars have become people's fashion. In electric vehicles involved in electrical, mechanical, optical, thermal and many other aspects of physical knowledge, the following I only from the electrical, mechanical analysis of two examples. First, the electrical aspects 1. Battery is the source of electric vehicle power, commonly used is lead sulfate batteries, divided into 36 volts and 48 volts two. When it works, it first converts electricity into chemical energy and stores it in it