1.电容器动态问题分析
2.电场与电场强度
3.库仑定律
4.电路中的电源
5.分压式和限流式对滑动变阻器的要求
6.探究感应电流的产生条件
7.磁通量
8.洛伦兹力与安培力的关系
9.螺旋测微器的原理与读数
10.游标卡尺的原理与读数
11.光电门的原理
12.追及相遇问题
13.小船过河
14.力的平行四边形定则演示实验
15.力的合成
16.动态平衡问题一
17.动态平衡问题二
18.向心加速度的方向
19.万有引力与重力的关系
20. 传送带问题
21.机械振动
22.简谐运动
23.单摆
24.受迫振动
25.共振
26.机械波
27.波的衍射
28.波的干涉
29.静电场
30.静电屏蔽
31.研究电荷分布
32.库仑扭秤实验
33.模拟电场线
34.测量等势线
35.探究电容大小的影响因素
36.氢原子模型
37.带电粒子在电场中的往复运动(一)
38.带电粒子在电场中的往复运动(二)
恒定电流
39.研究路端电压
40.探究欧姆定律
41.探究电阻的伏安特性曲线
42.探究小灯泡伏安特性曲线
43.用DIS研究小灯泡U-I图像
44.用DIS测电源电动势和内阻
45.灵敏电流计改装成电压表
46.半偏法测量电流表内阻
47.磁场
48.电流的磁效应
49.质谱仪
50.回旋粒子加速器
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臧毕鹏5138螺旋测微器的正确用法? -
支谈香19163132006 ______ 螺旋测微器又称千分尺,是比游标卡尺更精密的测量长度的工具,用它测长度可以准确到0.01mm,测量范围为几个厘米. 图上A为测杆,它的一部分加工成螺距为0.5mm的螺纹,当它在固定套管B的螺套中转动时,将前进或后退,活动套管C和...
臧毕鹏5138螺旋测微器的读数 - -----mm(图1),游标卡尺的读数------cm(图2 -
支谈香19163132006 ______ 1、螺旋测微器的固定刻度为4mm,可动刻度为48.5*0.01mm=0.485mm,所以最终读数为4mm+0.485mm=4.485mm. 2、游标卡尺的主尺读数为:2.6cm=26mm,游标尺上第4个刻度和主尺上某一刻度对齐,所以游标读数为4*0.1mm=0.4mm,所以最终读数为:26mm+0.4mm=26.4mm=2.64cm. 故答案为:4.485,2.64
臧毕鹏5138游标卡尺图1读数_____ - 螺旋测微器图2读数_____ - -
支谈香19163132006 ______[答案] 1、游标卡尺的主尺读数为:2.1cm=21mm,游标尺上第4个刻度和主尺上某一刻度对齐,所以游标读数为4*0.1mm=0.4mm,所以最终读数为:21mm+0.4mm=21.4mm. 2、螺旋测微器的固定刻度为8.5mm,可动刻度为6.2*0.01mm=0.062mm,所以...
臧毕鹏5138螺旋测微器怎么读数 -
支谈香19163132006 ______ 【螺旋测微器】先读主尺上的读数,先整数毫米. 第二看是不是主尺上有半格出来,如果是就加0.5毫米. 最后看旋钮上的读数,与主尺中间横线对齐是几个小格,就几乘以0.01毫米.比如是25就读0.25毫米,跟前面的都加一块
臧毕鹏5138螺旋测微仪怎么看读数 -
支谈香19163132006 ______ 螺旋测微计(又称千分尺),它是依据螺旋放大的原理制成的,主要部分为一个螺距为0.5mm的微动螺杆在固定螺母中旋转,当微动螺杆旋转时,带有刻度的螺帽也跟随螺杆一起转动,螺杆便沿着旋转轴线方向前进或后退一个螺距的距离.因此,沿轴线方向的微小移动距离,就能用旋转螺帽上的读数表示出来.螺旋测微器的精密螺纹的螺距是0.5mm,旋转螺帽有50个等分刻度,因此旋转螺帽每旋转一小格,相当于测微螺杆前进或后退这0.5/50=0.01mm.可见,转动螺帽的每一小格表示0.01mm,所以以螺旋测微器可准确到0.01mm.由于还能再估读一位,可读到毫米的千分位.
臧毕鹏5138刻度尺,螺旋测微器,游标卡尺读数的注意事项和使用步骤? -
支谈香19163132006 ______[答案] 螺旋测微计又叫千分尺 误差是0.01mm 旋开后放入你要测量的东西,拧大螺母可以很快卡紧,快紧的时候拧后面的小螺母,听到咔咔的很小声音就表示拧紧了,可以读数了. 1.测杆上一大格1mm,每一大格又分两小格,每小格0.5mm(如图为不满0....
臧毕鹏5138图中螺旋测微器的读数为______mm. -
支谈香19163132006 ______[答案] 螺旋测微器的固定刻度读数为5mm,可动刻度读数为:0.01*20.0mm=0.200mm, 所以最终读数为:5mm+0.200mm=5.200mm. 故答案为:5.200
臧毕鹏5138怎样在螺旋测微器上读数 -
支谈香19163132006 ______ http://www.tudou.com/programs/view/n5-K9RDkfuo 螺旋测微器 固定刻度 不估读 测量时,当小砧和测微螺杆并拢时,可动刻度的零点若恰好与固定刻度的零点重合,旋出测微螺杆,并使小砧和测微螺杆的面正好接触待测长度的两端,那么测微螺杆向右移动的距离就是所测的长度.这个距离的整毫米数由固定刻度上读出,小数部分则由可动刻度读出.可动刻度 要估读 是看上面
臧毕鹏5138螺旋测微器怎么读数? -
支谈香19163132006 ______ 以鼓轮边缘为准读固定的毫米(不估读,读露出的那个读数),1格是0.5mm 从可动刻度上读出读数(要估读一位)乘以0.01,(1格是0.01mm)然后相加即可. 结果是x.xxx(mm).一定要小数点后有3位,是0也要写.
臧毕鹏5138怎样读螺旋测微器 -
支谈香19163132006 ______ 螺旋测微器是个通称,有外径千分尺、内测千分尺、深度千分尺、公法线外径千分尺等.规格有0~25mm、25~50mm、50~75mm等等.它的原理是用很精密的螺丝通过旋转,而测出它的轴向移动的距离.螺丝的螺距(任意相邻两颗牙齿之间的...
