大学物理实验计算题

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大学物理实验计算题 -CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN

1.用50分度游标卡尺测量铜环的内径K=6次,测量数据如下,d i =(19.98),(19.96),(19.98),(20.00),(19.94),(19.96),单位毫米,计算测量结果,并用不确定度表示测量结果。

()

%

2.097.19/0

3.003.097.1903.002.002.002.0102.0197.192

22

6

1

==±==+===⨯==

=--=

=∑=E mm d mm

U U U mm

U mm

n t

U mm

n d

d

mm

d B A d B d A i

i d σσ解:

2.用流体静力称衡法测固体密度的公式为:ρ=[m/(m-m1)] ρ0,若测得m=(29.05±0.09)g ,m 1=(19.07±0.03)g, ρ0=(0.9998±0.0002)g/cm 3,求:ρ±U ρ

3

3

13

2

0212122

1122211202

02

12

122

/02.091.2/91.2/02.0)())

(())((

cm g cm g m m m cm g U m m m U m m m U m m m U U U U p m m m m m m ±==⎥⎦

⎢⎣⎡-==-+--+--=⎪⎪⎭

⎝⎛∂∂+⎪

⎪⎭⎫

⎝⎛∂∂+⎪⎪⎭⎫ ⎝⎛∂∂=ρρρρρρ

ρρρ解:

3.用有效数字运算规则计算下列各式:

⑴.1.02000.10.5000.400.2⨯+⨯+⨯

⑵.201080.63-⨯ ⑶.

()00

.2989.52.2480.2⨯-

解:(1)601.02000.10.5000.400.2=⨯+⨯+⨯

(2)331078.6201080.6⨯=-⨯ (3)()9.600

.2989.52.2480.2=⨯-

4.(1)=-+12.93.20475.8 (2)=⨯-⨯23102.41025.5 (3)

=⨯+30

.26

.4)2.1036.9(

(4)=⨯200.10π

解:(1)6.1912.93.20475.8=-+ (2)3231083.4102.41025.5⨯=⨯-⨯ (3)

3930

.26

.4)2.1036.9(=⨯+

(4) 2.31400.102=⨯π 5.(1)=-+753.951.236457.68

(2)=⨯⨯0.30000.200

.40360.9

(3)=⨯200.6041

π

(4)

=-⨯--⨯)

140.31400.23()0.10831103()

450.945.18(00.80

解(1)21.295753.951.236457.68=-+

(2)24.60.30000.200

.40360.9=⨯⨯

(3)282700.6041

2=⨯π

(4)

8.1)

140.31400.23()0.10831103()

450.945.18(00.80=-⨯--⨯

6.(1)

=+⨯-+⨯0.11000

.10)00.7700.78()

412.46.5(0.100

(2)=-+137.032.5347.72 (3)=÷⨯2005.3793.8 (4)=⨯-⨯12107.1107.8

解:(1)

3101.10.11000

.10)00.7700.78()

412.46.5(0.100⨯=+⨯-+⨯

(2)53.77137.032.5347.72=-+ (3) 15.02005.3793.8=÷⨯ (4) 212105.8107.1107.8⨯=⨯-⨯ 7.(1)=+÷3.5109.76

(2)

=-2

2

200.3)00.400.5(

(3)=⨯-989.5)2.2480.2(

(4)=⨯-⨯+⨯1.02000.10.50000.400.2 解:(1)0.133.5109.76=+÷

(2)

0.100.3)00.400.5(2

22=-

(3)14989.5)2.2480.2(=⨯-

(4)561.02000.10.50000.400.2=⨯-⨯+⨯ 8.(1)=-⨯201080.63 (2)=-+28.520234.7 (3)=-++01.0701.2347.172 (4)=÷⨯100.2231.5

解:(1)331078.6201080.6⨯=-⨯ (2)2228.520234.7=-+

(3)24401.0701.2347.172=-++ (4)0.1100.2231.5=÷⨯ 9.(1)=⨯-⨯33109.0109.7 (2)

]

20[3.22079.6是常数=+÷

(3)=÷⨯519.623.328 (4)=⨯-⨯1007.42.17.503 解:(1)333100.7109.0109.7⨯=⨯-⨯ (2)

]

20[6.23.22079.6是常数=+÷

(3)14519.623.328=÷⨯

(4)2103.11007.42.17.503⨯=⨯-⨯

10.(1))

10(104

.237为常数=

(2)=+-3.7046.2785.32

(3)=÷⨯1005.232.50 (4)=÷+⨯23.172.41.174.38

解:(1))

10(74

.23104

.237为常数=

(2)6.1003.7046.2785.32=+- (3)3.11005.232.50=÷⨯ (4)4723.172.41.174.38=÷+⨯

11.(1))

50(5047

.832为常数=

(2)=-+24.53121146.28 (3)=÷⨯53076.14 (4)=⨯+÷405.10.326.16

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