Chapter 7Energy and WorkGoals for Chapter 7Overview work as defined in work to kinetic work done by a variable potential energy time and the relationship of work to is Energy describes motio

单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级Book 10 Module 1 Unit 2办公室office父亲母亲parentHe worked in an office.She works in … a shopHe works in… a farm