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1、第 1 页 共 32 页2019 年高考物理基本知识点总结一.教学内容：1.摩擦力方向：与相对运动方向相反，或与相对运动趋势方向相反静摩擦力：0ffm（具体由物体运动状态决定，多为综合题中渗透摩擦力的内容，如静态平衡或物体间共同加速、减速，需要由牛顿第二定律求解）滑动摩擦力：fN2.竖直面圆周运动临界条件：绳子拉球在竖直平面内做圆周运动条件：（或球在竖直圆轨道内侧做圆周运动）绳约束：达到最高点：vgR，当 T 拉0 时，vgRmgF 向，杆拉球在竖直平面内做圆周运动的条件：（球在双轨道之间做圆周运动）杆约束：达到最高点：v0 T 为支持力0 v gR注意：若到最高点速度从零开始增加，杆对球的作
2、用力先减小后变大。3.传动装置中，特点是：同轴上各点相同，AC，轮上边缘各点 v 相同，vAvB4.同步地球卫星特点是：_，_ 卫星的运行周期与地球的自转周期相同，角速度也相同；卫星轨道平面必定与地球赤道平面重合，卫星定点在赤道上空36000km处，运行速度 3.1km/s。5.万有引力定律：万有引力常量首先由什么实验测出：FG221rmm，卡文迪许扭秤实验。6.重力加速度随高度变化关系：gGM/r2说明：为某位置到星体中心的距离。某星体表面的重力加速度。rgGMR02ggRRhRh()22某星体半径为某位置到星体表面的距离7.地球表面物体受重力加速度随纬度变化关系：在赤道上重力加速度较小，在
3、两极，重力加速度较大。8.人造地球卫星环绕运动的环绕速度、周期、向心加速度g2rGM、文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X
4、4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6
5、X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O
6、6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10
7、O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q1
8、0O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q
9、10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6Q10O6X4文档编码:CP10S3W10X1K9 HZ6L3J3J9G4 ZP5Q6
10、Q10O6X4第 3 页 共 32 页rmvrGMm22、vrGM、rmvrGMm22m2Rm（2/T）2R 当 r 增大，v 变小；当 rR，为第一宇宙速度v1rGMgRgR2GM 应用：地球同步通讯卫星、知道宇宙速度的概念9.平抛运动特点：水平方向 _ 竖直方向 _ 合运动 _ 应用：闪光照建立空间关系即两个矢量三角形的分解：速度分解、位移分解相 位，求ytxytg TvSTvxv tvvyg tvg tSvtg tvvg ttggtvtggtvtgtg20002022240222001214212文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码
11、:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2
12、R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4
13、 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9
14、P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V
15、4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M
16、9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5
17、S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4第 4 页 共 32 页在任何两个时刻的速度变化量为vgt，pmgtv 的反向延长线交于x 轴上的x2处，在电场中也有应用10.从倾角为 的斜面上 A 点以速度 v0平抛的小球，落到了斜面上的 B 点，求：SAB在图上标出从A 到 B 小球落下的高度h221g
18、t和水平射程 stv0，可以发现它们之间的几何关系。11.从 A 点以水平速度 v0抛出的小球，落到倾角为 的斜面上的 B点，此时速度与斜面成90 角，求：SAB在图上把小球在B 点时的速度 v 分解为水平分速度v0和竖直分速度 vygt，可得到几何关系：0vgttg ，求出时间 t，即可得到解。12.匀变速直线运动公式：sv tatvvstvvasvvvvvavvtssmnaTsvvtttsttmnt0220220222022020122222()文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 Z
19、F7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O1
20、0E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文
21、档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY
22、3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K
23、5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ
24、2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10
25、H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4第 5 页 共 32 页13.匀速圆周周期公式：T22vR频率公式：fTnvR122速度公式：vstrtT2向心力：向FmvRmRmTR2222角速度与转速的关系：2n 转速（n：r/s）14 水平弹簧振子为模型：对称性在空间上以平衡位置为中心。掌握回复力、位移、速度、加速度的随时间位置的变化关系。单摆周期公式：
26、Tgl2受迫振动频 率特点：ff驱动力发生共振条件：f驱动力f固共振的防止和应用波速公式 S/t f/T：波传播过程中，一个周期向前 传播一个波长声波的波速（在空气中）20:340m/s 声波是纵波磁波是横波传播依赖于介质：v固 v液v气磁波传播不依赖于介质，真空中速度最快磁波速度 vc/n（n 为折射率）波发生明显衍射条件：障碍物或孔的尺寸比波长小，或者相差不大文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7
27、M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E
28、5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编
29、码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B
30、2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I
31、4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V
32、9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5
33、V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4第 6 页 共 32 页波的干涉条件：两列波频率相同、相差恒定注：（1）加强区是波峰与波峰或波谷与波谷相遇处，减弱区则是波峰与波谷相遇处（2）波只是传播了振动，介质本身不随波发生迁移，是传递能量的一种方式（3）干涉与衍射是波特有的特征（4）振动图像与波动图像要求重点掌握15.实用机械（发动机）在输出功率恒定起动时各物理量变化过程：mfFavPFv当 Ff 时，a0，v 达最大值 vm匀速直线运动在匀
34、加速运动过程中，各物理量变化F 不变，mfFa不变FvPv当，恒定PPavPvaFfmmm0当 Ff，a0，vm匀速直线运动。文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5
35、V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7
36、M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E
37、5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编
38、码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B
39、2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I
40、4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4第 7 页 共 32 页16.动量和动量守
41、恒定律：动量 Pmv：方向与速度方向相同冲量 IFt：方向由 F 决定动量定理：合力对物体的冲量,等于物体动量的增量I合P，Ftmvtmv0动量定理注意：是矢量式；研究对象为单一物体；求合力、动量的变化量时一定要按统一的正方向来分析。考纲要求加强了，要会理解、并计算。动量守恒条件：系统不受外力或系统所受外力为零；F内F外；在某一方向上的合力为零。动量守恒的应用：核反应过程，反冲、碰撞应用公式注意：设定正方向；速度要相对同一参考系，一般都是对地的速度列方程：22112211vmvmvmvm或P1P217.碰撞：碰撞过程能否发生依据（遵循动量守恒及能量关系E前E后）完全弹性碰撞：钢球 m1以速度
42、v 与静止的钢球 m2发生弹性正碰，文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4
43、ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O
44、10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4
45、文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:C
46、Y3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2
47、K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 H
48、J2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4第 8 页 共 32 页碰后速度：121211vmmmmv121122vmmmv碰撞过程能量损失：零完全非弹性碰撞：质量为 m 的弹
49、丸以初速度v 射入质量为 M 的冲击摆内穿击过程能量损失：E损mv2/2（Mm）v22/2，mv （mM）v2，（Mm）v22/2（Mm）gh ghmmMv2碰撞过程能量损失：mMMmv221非完全弹性碰撞：质量为m 的弹丸射穿质量为M 的冲击摆，子弹射穿前后的速度分别为0v和1v。mvmvMvvm vvM0101()EmvmvEMv12121202122碰撞过程能量损失：QmvmvMv1212120212218.功能关系，能量守恒功 WFScos，F:恒力（N）S:位移（m）:F、S 间的夹角文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3
50、B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5I4 HJ2V9P10H5V4 ZF7M9O10E5S4文档编码:CY3B2R2K5