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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牧虏晏4780螺旋测微器的读数方法有哪些? -
羿迫眨18785233630 ______ 螺旋测微器的读数方法:首先读出固定套筒上所露出来的刻度,然后读出微分同尺寸看清周围情况,要与固定套筒中线基本对齐,然后再乘以0.01毫米,就可以得出微分筒上尺寸数值. 螺旋测微器又称千分尺(micrometer)、螺旋测微仪、分...
牧虏晏4780螺旋测微器怎么读数? -
羿迫眨18785233630 ______ 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.
牧虏晏4780螺旋测微仪的使用方法 -
羿迫眨18785233630 ______ 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...
牧虏晏4780(1)图中为游标卡尺与螺旋测微器的读数示意图,则由示意图可读出游?
羿迫眨18785233630 ______ (1)游标卡尺读数为L=50mm 3*0.05mm=50.15mm,螺旋测微器的读数为d=5.5mm 19.3*0.01mm=5.693mm(2)①由于描绘小灯泡伏安特性曲线要求电流从零调,所以滑动变阻器应用分压式接法,应选全电阻小的变阻器R 1.②a.由上面分析可知,变阻器不能采用限流式接法;b.导线接在变阻器的滑动触头上;c.电压表采取串联接入;d.由I=PU=0.26A,所以图中电流表选择量程太大,且极性接反.③正确连接如图所示:故答案为:(1)50.15,5.693(2)①R 1,②a、变阻器不能采用限流式接法;b、导线接在变阻器的滑动触头上;c、电压表采取串联接入;d、电流表选择量程太大,且极性接反
牧虏晏4780螺旋测微器的初读数是什么 -
羿迫眨18785233630 ______ 螺旋测微器的初读数是指螺旋测微器在测量之前需要先确定测量仪器的初试读数,这个读数是用于最后测量之后减去这个读数才能得到正确的测量结果.这是因为测量仪器用久了以后,初始位置可能会有误差. 1、先读固定刻度 2、再读半刻度...
牧虏晏4780螺旋测微器如何读数 -
羿迫眨18785233630 ______[答案] 螺旋测微器又称千分尺,读数时应先从固定套管上读出微分筒边缘对应的毫米或0.5mm以上的读数,再读出固定套筒管上水平刻线对应微分筒上的毫米以下读数,要估读到最小刻度的十分之一,即0.001mm.
牧虏晏4780如图所示,螺旋测微器的读数是 - ----- -
羿迫眨18785233630 ______ 固定套管下刻度线的分度值为amm,微分筒端面与下刻度线之间有一条二刻度线,测量结果应为下刻度线的数值加二f.a毫米,可动刻度的值为52.a*f.f0=f.52amm,所以读数为amm+f.amm+f.52amm=a.82amm,因为牵扯到估读,所以答案在a.824mm~a.82我mm之间都可以. 故答案为:a.824mm~a.82我mm
牧虏晏4780游标卡尺图1读数_____ - 螺旋测微器图2读数_____ - -
羿迫眨18785233630 ______[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...
牧虏晏4780图中螺旋测微器的读数为______mm. -
羿迫眨18785233630 ______[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
牧虏晏4780如图所示,螺旋测微器的读数为______mm,游标卡尺的读数为______mm. -
羿迫眨18785233630 ______[答案] 1、螺旋测微器的固定刻度为1.5mm,可动刻度为38.0*0.01mm=0.380mm, 所以最终读数为1.5mm+0.380mm=1.880mm. 2、游标卡尺的主尺读数为:242mm,游标尺上第3个刻度和主尺上某一刻度对齐,所以游标读数为3*0.05mm=0.15mm. 所以最...
