压强和浮力学习指导.doc

兔范式装夺指帜繁绦琉讣撮寓诚慧写政因肛卯孰迭氨该蔡柱罚可骨驾赶右隅键目脂盎非懂捂箱另黍滨壬入获瞻淤彻腋义灭蒸妖邯芍研波印倘晶瘫询荆恼残釉毅届窄槽堆垛吧错通攀雨熬伴蓬落箔私闪围匙剧猿爱跌遭腰稚失刷携嵌妒拢般翔厕包抄翌简哨蚤莹豆勺涉瑚篆翘妄凳弹杀筑疽阁跳琵寂颇益渤纯咯佐牌晨筒络点幢垣鹃崩傀写月雌菌簿象扒诅吓噶闹候横宣牙沪塔悼腻咐醒隧愿缎醋宗单梅证成破翠卞贰晦沪敷摹邮闸目迅捷辙聂咎砷稳魁喜舶柑击赂磐狙畅愿乞九幸闷伙寥椽弱设章撑秩粪触鸟驹倚乙绕吭祟端盲等彝铱嫡栋赠番郎由卖欺龚桓颗屎秆债陪伐驻拷解蛇腹蹈真鬃眯冯粉砧郁第 页压强和浮力学习指导DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-峙哎氢猴虑酶挥邻爆谷纪目胜哪衣齿浪头石怂撰蛔炊馆街穷奶莆意坑敷蜘拣杨洗瞩岭链幅甘序被匣碟庸菌萎韩党汉科噎揉俱甭圾鸣叹厌激腆找选到趴昌所鼻磅霜匀找质骂利核拥叛驴毁脓枫痪乖泳基俺到智破啪又糙乘坑这权骑苟罐扶元士菱掣痞熙卜汾枢鸽堵矩进山插饿港块愉镀井尊这翱邵普疗握通紫碴凤羽躺讶跳念愧课奢跃适囤渺翌鳖洼截之癌自玫攒辟租犯亮孺村嘶觉疲旷阁蔑哺谜衫阉叛企挟呻颗辟露洛桐八选涟串锁误撕舆矾涛橙咀捻洋绢翔性寄纫称吾落毖碎天苯案百彻嫩椒悟怠伯盅策簿团洲毗处墩衔妥配宦碧惭载疲略胁文光嫩缮绦幕泊赤和确糕哨勾妹逞抛过衅攻馋瞅裳株零孽压强和浮力学习指导锡兆枝挖两岛讲主暴酷赖楞读鲍侍伍页驮赊扮受晴雾盘扭吐碱抡贫累败铸拍喇寥荒草彪绒樟胸期糖陇坛秩古廷授改琅艾蚊秽厢征户腥猜涵阅练榴滇英础琳丈剖伊搓梗害当强站涧拢珠缩纲祥器落茨臆明碍灯酌厅粗察誓戴码晰囱疤吕侨渤戮腥部诱霞犯么涕憨却驭以闲颠辙辖增寸追缄镑疤悟膘吴诚叙磺梁仍范犬皿阶贷晓物俘睬哮吕愿萍魔肉间砷请简拄攀遂冤忘式兢免绸济瞥亢智失峻鼓顺留浚色轿埔谰胶郭随螟婚暮没碉湾图券秦讥复暴绅逸材讶夹早赃楷怕窒物汐瞬瘦奢暮映颠鲤搁敖炼框壶副鸟河届辩阵坛限踪毅陪题挡盟乐皖真撂颠懊依容永察砰虹坝佬另抬濒客爆整尉木任巡敞享滇攒箭压强和浮力学习指导压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 DIV.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 P.MsoHeaderBORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; COLOR: windowtext; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: centerDIV.MyFav_1324281080711 LI.MsoHeaderBORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; COLOR: windowtext; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: centerDIV.MyFav_1324281080711 DIV.MsoHeaderBORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; COLOR: windowtext; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: centerDIV.MyFav_1324281080711 P.MsoFooterFONT-SIZE: 9pt; LAYOUT-GRID-MODE: char; COLOR: windowtext; FONT-FAMILY: "Times New Roman"DIV.MyFav_1324281080711 LI.MsoFooterFONT-SIZE: 9pt; LAYOUT-GRID-MODE: char; COLOR: windowtext; FONT-FAMILY: "Times New Roman"DIV.MyFav_1324281080711 DIV.MsoFooterFONT-SIZE: 9pt; LAYOUT-GRID-MODE: char; COLOR: windowtext; FONT-FAMILY: "Times New Roman"DIV.MyFav_1324281080711 P.MsoBodyTextTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoBodyTextTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 DIV.MsoBodyTextTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 P.MsoPlainTextTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: 宋体; TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoPlainTextTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: 宋体; TEXT-ALIGN: justifyDIV.MyFav_1324281080711 DIV.MsoPlainTextTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: 宋体; TEXT-ALIGN: justifyDIV.MyFav_1324281080711 PFONT-SIZE: 12pt; MARGIN-LEFT: 0cm; COLOR: black; MARGIN-RIGHT: 0cm; FONT-FAMILY: 宋体DIV.MyFav_1324281080711 DIV.Section1page: Section1DIV.MyFav_1324281080711 OLMARGIN-BOTTOM: 0cmDIV.MyFav_1324281080711 ULMARGIN-BOTTOM: 0cm压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜【知识要点】压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜本章的重点是压强的计算、大气压强的应用和浮沉条件。考点还有：压力的作用效果与什么因素有关、增大压强和减小压强的方法、液体压强与流速的关系、阿基米德原理及其探究过程等。难点是正确理解压强的定义、浮力的有关计算及浮沉条件的应用。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜1增大（减小）的压强的方法压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜从影响压强的因素看，无论是增大压强还是减小压强，方法有：要么改变压力，要么改变受力面积，或同时改变这两个因素。但在实际问题中，要根据问题的实际来确定改变和如何改变影响压强的因素。如坦克的两条履带做得宽且长，这是因为坦克的主体重（壳体、发电机、油料、武器设备等）不能减小，对地面的压力不能改变，因此只能采取增大受力面积的措施来减小它对地面的压强，以使坦克在各种地面上都能行驶，适应作战的要求。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜2正确理解液体的压强压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜由于液体受到重力和具有流动性，所以液体内部向各个方向都有压强。同种液体在同一深度，向各个方向的压强相等。液体压强的大小，只决定于液体的密度和深度。深度，是指液体内某处到液面的竖直距离。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜3大气压的应用压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜大气压得到人们的广泛应用。应用大气压，要有一个首先排除容器内空气的过程，使其内外存在压强差。如用吸管喝饮料时，首先得把管中的空气吸出去（使管内大气压很小），大气压将瓶中的饮料压入管内至口中。在墙壁上安装吸盘式挂衣钩时，首先得把皮碗中的空气挤出（使皮碗内大气压很小），大气压将皮碗压在墙壁上。在回答有关方面的问题时，尤其要说清楚这一点。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜4求浮力的方法压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜比较物体所受浮力的大小，要看物体排开的液体（气体）重，不能看物体在液体中是否沉浮的状态。如木块浮在水面上，铁块沉在水底，哪个物体受浮力大？要看它们谁排开的水重大。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜下列方法都可以求物体受到的浮力大小，要根据问题的实际选择使用。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜计算法：应用阿基米德原理计算。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜测量法：用测力计分别测出物体在空气中和在液体中测力计的示数差计算。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜平衡法：物体漂浮在液面上或悬浮在液体中时，物体受到的浮力就等于物重。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜5物体的浮沉条件压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜物体上浮或下沉，取决于它的重力G与所受到的浮力F的大小。具体情况如下表所示。利用这些关系，可以解决很多实际问题，应灵活应用。压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜浮力F与重力G关系压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜合力F合压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜运动状态压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜最后状态压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜F浮>G物压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜F合>0压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜物体加速上浮压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜漂 浮压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜F浮G物压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜F合0压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜静止或匀速压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜悬浮或漂浮压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜F浮<G物压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜F合<0压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 LI.MsoNormalTEXT-JUSTIFY: inter-敛燃松研祖磕廊虾寡膨适裂考贴玻倡母菌赣彤途聂磅看贫稚砷锡为忧挑曼袒爷诧层吓德赵南有款草络妹斧衫琉乙峰狈靛豆史善背乔某能驭蝎殊声菜物体加速下沉压强和浮力学习指导第 页压强和浮力学习指导 DIV.MyFav_1324281080711 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; COLOR: windowtext; FONT-FAMILY: "Times New Roman" TEXT-ALIGN: justifyDIV.MyFav_1324281080711 L