大学基础物理实验答案.pdf

大学基础物理实验答案

【篇一：大学物理实验作业参考答案】

0.004521?0.000001=?4.521?0.001??10?3；

32476?105=3.2476?109；(2)

15.48g=1.548?104mg=1.548?10?2kg

-1

（5）0.0221?0.0221=“0?0.000488

400?1500

?4.10?103（6）

12.60?11.60

11

5、（1）

x=(4.113+4.198+4.152+4.147+4.166+4.154+4.132+4.170)=?33.23

2

88

=4.154cm??=

{8?1[(4.154-4.113)

8?12

+(4.154-4.198)2+(4.154-4.152)2

+(4.154-4.147)2+(4.154-4.166)2+(4.154-4.154)2+(4.154-

4.132)2+(4.154-4.170)2]

}

12

?0.00904～０.009cm

0.0090.01

?100%=0.22%或e=?100%=0.23%

4.154.154

注：使用计算器时计算过程中有效数字的位数可以不考虑，最后结

果应按照教材p7的“不确定度

取位规则”和“测量有效数字取位规则”。

(2)、x=

117.413

（2.904+2.902+2.900+2.903+2.900+2.904）==2.902167cm66

??=

{6?1(0.002

6?12

+0.0002+0.0022+0.0012+0.0022+0.0022)

}

12

=

0.000017

?0.0008cm30

0.0008

?100%=0.028%

2.9022

12.0321

（2.010+2.010+2.011+2.012+2.009+1.980）=?2.0053cm

66

1

2

?x=

[6?1(0.0047

6?12

+0.00472+0.00572+0.00672+0.00372+0.02532)

]

=

0

?0.005cm

30

0.005

?100%=0.25%2.005

6、（1）n?

n

??a???b???c?

????????

abc??????

2

2

222

??2?????

（2）p??u???r?

p?u??r?

（3）㏑f=㏑u+㏑v-㏑(u-v)

dfdudvd?u?v??11?1??1

???=???du+???dvfuvu?v?uu?v??vu?v?

vu

du?dv

uu?vvu?v2

2

=-

?????fvu

????????uu?vu??vu?vv??f????

(4)㏑n=㏑m+㏑g+㏑r+㏑r+2㏑t-2㏑4?-㏑l

?㏑n1?㏑n1?㏑n1?㏑n

????0?mm?rr?rr?g

?lnn2?lnn?lnn1

??0???tt???ll

?n???m???r???r??2?t???l???????????????????

n??m??r??r??t??l????

22222

1

2

7、??

mm4m4?149.18??2??11.084gcm32v12

?dh?dh3.142?2.04?4.124

??

????2??????0.05??2?0.01??0.01???m???d???h?=????????

?0.00735?mdh149.182.042.04????????????

2

2

2

2

2

2

8．解：a?

3

??

?

?

0.09

?100％≈0.81％11.08

1

?a1?a2?a3?a4?a5??1??2.01?2.00?2.04?1.98?1.97??2.00cm55

2

s?a?2.002?4.00cm2l?4a?4?2.