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.......................
