大学物理实验报告作业模板

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1、1用千分尺测量平行板的厚度D，共测6次，结果如下。测量次数i123456Di/mm2.6032.6022.6022.6012.6022.602已知千分尺的仪器误差Δ仪=0.004mm。处理上述测量数据，写出测量结果的完整表达式。D(2.6032.6022.6022.6012.6022.602)/615.612/62.6020mm1n2D(DiD)n1i11222222(0.00100.00000.00000.00100.00000.0000)0.0007mm5ΔAtnD1.050.00070.0008mmΔΔ0

2、.004mmB仪22Δ0.00080.0040.005mm0.005E100%0.2%2.602D2.6020.005mmE0.2%2在光具座上调节透镜位置x使在屏上成一清晰的像，然后读出透镜的位置x。重复6次，得如下结果。测量次数i123456xi/mm706.0703.0700.5704.5702.5701.5综合考虑光具座的标尺刻线误差，透镜特征点与透镜架上的标记线可能不在同一垂直平面内等因素，估计测量的B类不确定度ΔB1.5mm。处理上述测量数据，写出透镜位置x的完整表达式。61xxi703.0mm6i11n2x(xi

3、x)2.0mm5i1ΔAtnx1.052.02.1mmΔ1.5mmB22Δ2.11.52.6mm2.6E100%0.4%703.0x703.02.6mmE0.4%m4用流体静力称衡法测固体密度的公式为0。若测得m=29.05±0.09g，m1=19.07±0.03g，mm1300.99980.0002g/cm，求和Δ，并正确表达测量结果。m29.0530.99982.910g/cm0mm29.0519.071lnlnmln(mm)ln10ln11m1mmmmm(m

4、m)11ln1mmm11ln1002Δm1umum12u02E()()m(mm)mm110219.070.090.0320.00022()()29.05(29.0519.07)29.0519.070.99982220.0060.0030.00020.0070.7%ΔE2.9100.0070.03g/cm332.910.03g/cm5用50分度值的游标卡尺测量一块矩形金属板的长L和宽D，数据如下。测量次数i12345678Li/mm10.0210.00

5、9.9610.069.9810.0010.0810.02Di/mm4.024.064.084.044.064.104.004.04求金属板的截面积S。已知游标卡尺的仪器误差Δ仪0.02mm。188LL10.02mm12tn0.840.040.034mmiL(LiL)0.04mmALL8i17i1L10.020.04mmΔ0.03420.0220.04mm0.04100%0.4%LELE0.4%10.02188DD4.05mm12tn0.840.0320.027mmiD(DiD)0

6、.032mmADD8i17i1220.04Δ0.0270.020.04mmE100%1.0%DD4.05D4.050.04mmE1.0%22222SLD10.024.0540.6mmEEE(0.4%)(1.0%)1.1%SLD2ES1.1%40.60.5mmS40.60.5mmSS7用伏安法测电阻，在不同电压下得相应的电流值如下表，用下列三种方法求电阻R并作比较。U/V0.2000.4000.6000.8001.0001.2001.4001.600I/mA5.210.415.520.525.630.535

7、.540.2(1)对每一组U、I，计算R，然后求平均；(2)用作图法求R；(3)用逐差法求R（逐差法介绍见《实验2.4：用拉伸法测定金属丝的杨氏弹性模量》附录）。(1)U/V0.2000.4000.6000.8001.0001.2001.4001.600I/mA5.210.415.520.525.630.535.540.2R/385385387390391393394398R390(2)UBUA1.7000.100Rk0.400k400II42.52.5BA45.0B40.0(1.700,42.5)35.030.025.0