初三物理暑假学案1目录第一节质量与密度.....................................................................................................1第二节压力与压强...................................................................................................8第三讲固体压强练习...............................................................................................17第四讲固体压强变化...............................................................................................21第五节液体压强.......................................................................................................32第六讲液体压强（连通器、液体压强变化）.......................................................41第七讲液体压强练习...............................................................................................49第八讲浮力...............................................................................................................56第九讲浮力的应用...................................................................................................62第十讲大气压强.......................................................................................................73第十一讲压力压强测试（90分）..........................................................................83第十二讲简单电路...................................................................................................90第十三讲电路连接.................................................................................................101第十四讲电流.........................................................................................................110第十五讲电压.........................................................................................................119第十六讲电阻滑动变阻器...................................................................................127第十七讲欧姆定律.................................................................................................137第十八讲欧姆定律的应用1...
