(Part 1: Definition)What is electric current? 什么是电流The rate of flow of electric charge.电荷流动的速率What is electric potential difference? 什么是电势差Energy per unit charge.As charge moves from point A to B. ...
Physics concept recite version 物理概念节奏背诵文本 Lyric version 歌词版本:Part 1: EnergyWhat is power? 什么是功率Rate of energy transfer. 能量传输的速率Work done per unit time. 单位时间作的功Unit is the watt. 单位是瓦特What is gravi...