17春-初三物理1目录第一讲磁场、原子和星系.............................................................................................................................2第二讲测小灯泡电功率...............................................................................................................................10第三讲电学计算一.......................................................................................................................................20第四讲电学计算二.......................................................................................................................................30第五讲伏安法测电阻...................................................................................................................................41第六讲压强变化..........................................................................................................................................52第七讲压强计算............................................................................................................................................61第八讲动态电路分析.................................................................................................................................69第九讲电路故障..........................................................................................................................................76第十讲凸透镜成像规律...............................................................................................................................85第十一讲情景分析......................................................................................................................................93第十二讲表格分析..................................................................................................................................101课后作业.....................................................................................................................................................113第...
