题库网 (tiku.one)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp，上传完成后会在上方生成预览，用鼠标连续双击缩略图，或拖动缩略图，该图片就被绑定至本题，显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片，绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习：Physics Unit1: Introduction Measurement & Estimating
本习题练习来源于题库网 (https://tiku.one)，是在线习题练习的打印版，您也可以访问本平台网站(https://tiku.one/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 55 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://tiku.one/test55.html
 作者: admin    总分: 76分  得分: _____________

答题人: 匿名未登录  开始时间: 22年07月19日 20:45  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) (组内1/70) 切至整卷模式 搜藏此题  
第 1 题组 (共 70 题 70 分)
  Four students measure the mass of an ob89t*yo: bfd cprj-kj w3 v;vi2ject, each using a different scale. They record 2rt9f obj;y *dj:vwp3i-kcv 8 their results as follows:
Which student used the least precise scale?
Student Mass (g)
A 49.06
B 49
C 50
D 49.2


参考答案:    
标记此题
2#
 
单选题 ( 1.0 分) (组内2/70) 切至整卷模式 搜藏此题  
  Four students measure the mass of an object, each using a differentu(l7wlv9 o8k w scale. They record their results as fo79k(l vw8l uowllows:
Which student used the most precise scale?
Student Mass (g)
A 49.06
B 49
C 50
D 49.2


参考答案:    
标记此题
3#
 
单选题 ( 1.0 分) (组内3/70) 切至整卷模式 搜藏此题  
  A useful method of expressi21+eh1 fpvo7 rf,xk vjng very small or very large numbers is

参考答案:    
标记此题
4#
 
单选题 ( 1.0 分) (组内4/70) 切至整卷模式 搜藏此题  
  All of the following are base uq/c7:4n 0rlk8xu ,bcg-:oj rb 0 uzlvdnits of the SI system except:

参考答案:    
标记此题
5#
 
单选题 ( 1.0 分) (组内5/70) 切至整卷模式 搜藏此题  
  Select the list whichz1rh p1x:es8)et t5sd0m qu/i contains only SI basic units.

参考答案:    
标记此题
6#
 
单选题 ( 1.0 分) (组内6/70) 切至整卷模式 搜藏此题  
  How many basic units *;voy jy5vqhw 45 c9hndoes the SI system have?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
7#
 
单选题 ( 1.0 分) (组内7/70) 切至整卷模式 搜藏此题  
  The base SI unit of timew3/v m)l4k(tw dfr6tp is

参考答案:    
标记此题
8#
 
单选题 ( 1.0 分) (组内8/70) 切至整卷模式 搜藏此题  
  In the CGS system, what are the fundamental units?,q9n2nfm3 ptfxt8 r 5n

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
9#
 
单选题 ( 1.0 分) (组内9/70) 切至整卷模式 搜藏此题  
  The metric prefix for one one-thousandth is3i g3 .)cr ss*uqyx/cz 6ereg.

参考答案:    
标记此题
10#
 
单选题 ( 1.0 分) (组内10/70) 切至整卷模式 搜藏此题  
  The metric prefix for one one-hundred b2 131vfbx1arolj2gl zhx 02wth is

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
11#
 
单选题 ( 1.0 分) (组内11/70) 切至整卷模式 搜藏此题  
  The metric prefix for one thousandajawrn 338hm0 is

参考答案:    
标记此题
12#
 
单选题 ( 1.0 分) (组内12/70) 切至整卷模式 搜藏此题  
  Express the number 0.0joiuw-9a(e ( 8r9iuv r2 days using a prefix.

参考答案:    
标记此题
13#
 
单选题 ( 1.0 分) (组内13/70) 切至整卷模式 搜藏此题  
  What is the conversion factn f/lew pwxqqk)tynam9b98lh5 c09 /3or between $km/h$ and $m/s$?

参考答案:    
标记此题
14#
 
单选题 ( 1.0 分) (组内14/70) 切至整卷模式 搜藏此题  
  What is the conversion factor be1-44ozy qnffktween $km/h^2$ and $m/s^2$?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
15#
 
单选题 ( 1.0 分) (组内15/70) 切至整卷模式 搜藏此题  
  What is the conversion fc tq9k1 it-u(pd--o cqactor between $cm^{2}$ and $m^{2}$?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
16#
 
单选题 ( 1.0 分) (组内16/70) 切至整卷模式 搜藏此题  
  The position, x, of an object ihsi)v: 35opkms given by the equation $x = A + Bt +Ct^2$, where $t$ refers to time. What are the dimensions of A, B, and C?

参考答案:    
标记此题
17#
 
单选题 ( 1.0 分) (组内17/70) 切至整卷模式 搜藏此题  
  What is the percent uncertainty in the measurement wdev 5q bg5hzku52 /csxk/-w4+o qbk: $2.58 \pm 0.15 cm$?

参考答案:    
标记此题
18#
 
单选题 ( 1.0 分) (组内18/70) 切至整卷模式 搜藏此题  
  What, approximately, is the percent uncertaino w1c.,p/k u99dgnfozd1xlv+zkw0wq, + 4v nmty for the measurement 5.2 mA?

参考答案:    
标记此题
19#
 
单选题 ( 1.0 分) (组内19/70) 切至整卷模式 搜藏此题  
  What is the percent uncertainty in the area of a circle whose rad 3lvjihkj67yr;c2 77oktv6k aius is $1.8 \times 10^{4} \; cm$?

参考答案:    
标记此题
20#
 
单选题 ( 1.0 分) (组内20/70) 切至整卷模式 搜藏此题  
  What is the volume, and its approximate uncertainty, of a sphere of radiu /f0hu9s llw7ks $1.96 \pm 0.01 \; m$?

参考答案:    
标记此题
21#
 
单选题 ( 1.0 分) (组内21/70) 切至整卷模式 搜藏此题  
  The number of significant figures in 10tse+87 h ov2he001 is

参考答案:    
标记此题
22#
 
单选题 ( 1.0 分) (组内22/70) 切至整卷模式 搜藏此题  
  The number of significant figures i7t d4 uocnslq9b29 v2 t8vsi0bn 0.01500 is

参考答案:    
标记此题
23#
 
单选题 ( 1.0 分) (组内23/70) 切至整卷模式 搜藏此题  
  The number of significan33yfo msa.0kx 9jx*zkfj t8/ dt figures in 0.040 is

参考答案:    
标记此题
24#
 
单选题 ( 1.0 分) (组内24/70) 切至整卷模式 搜藏此题  
  Which of the following has threebdn)re. e wc.4 significant figures?

参考答案:    
标记此题
25#
 
单选题 ( 1.0 分) (组内25/70) 切至整卷模式 搜藏此题  
  What is the sum of $2.67 \; cm + 1.976 \; cm + 2.1 \; cm$ considering significant figures?

参考答案:    
标记此题
26#
 
单选题 ( 1.0 分) (组内26/70) 切至整卷模式 搜藏此题  
  What is the difference 103.5 Volts ant7opkm50 jym 4d 102.24 Volts if they respectively represent two measurment values 54m k7p t0omyjof Voltage?

参考答案:    
标记此题
27#
 
单选题 ( 1.0 分) (组内27/70) 切至整卷模式 搜藏此题  
  What is the area of a q8e8 sken(+ciqix ,;urectangle with dimension $12.56 \; cm$ and $2.12 \; cm$?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
28#
 
单选题 ( 1.0 分) (组内28/70) 切至整卷模式 搜藏此题  
  What is the result of 2.43 divided by 4.561 ,kb gu;/wgfidi 2,ms,considering significant figures?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
29#
 
单选题 ( 1.0 分) (组内29/70) 切至整卷模式 搜藏此题  
  What is the cosine of 4,twae4nmhjc;* wg)p vr95je $55 ^{\circ}$?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
30#
 
单选题 ( 1.0 分) (组内30/70) 切至整卷模式 搜藏此题  
  The length and width of a rectangle are 1.3 f;6x qnnhu4i125 m and 0.606 m, respectively. Multiplying, your calculator gives the product as 0.68175. Rounding properly to the correct number ;463nxqhunfi of significant figures, the area should be written as

参考答案:    
标记此题
31#
 
单选题 ( 1.0 分) (组内31/70) 切至整卷模式 搜藏此题  
  The length and width of a rectangle are 0nt y5q(:) *a2cffc3 ndumxcp 1.125 m and 0.606 m, respectively. You calculate the rectangle's perimeter by adding these and multipln5)0*p2q f t3fx(ccc dmy:nua ying by two. Your calculator's display reads3.462 To the correct number of significant figures, this should be written as

参考答案:    
标记此题
32#
 
单选题 ( 1.0 分) (组内32/70) 切至整卷模式 搜藏此题  
  A rectangle is 3.25 m long and 1.5 m wide. What is itsp 1, eq ba wrs0orah2on5u,32. rw9f9ntg x6qn area?

参考答案:    
标记此题
33#
 
单选题 ( 1.0 分) (组内33/70) 切至整卷模式 搜藏此题  
  A rectangular garden measur5m4ryk3nz/m:i hgz z9 es 15 m long and 13.7 m wide. What is the length of a mmg5nrzi3:y/9 z4kz hdiagonal from one corner of the garden to the other?

参考答案:    
标记此题
34#
 
单选题 ( 1.0 分) (组内34/70) 切至整卷模式 搜藏此题  
  Select the smallest 3 nva d7)cmm*mvalue.

参考答案:    
标记此题
35#
 
单选题 ( 1.0 分) (组内35/70) 切至整卷模式 搜藏此题  
  Write the number 0.00045 in scientific notation (power of ten notation)1z8 fph pof64:fd6 dhc

参考答案:    
标记此题
36#
 
单选题 ( 1.0 分) (组内36/70) 切至整卷模式 搜藏此题  
  0.0001776 can also be e1 7v sk5dzwg(kxpressed as

参考答案:    
标记此题
37#
 
单选题 ( 1.0 分) (组内37/70) 切至整卷模式 搜藏此题  
  4567.89 is properly expressed in scientific notation aytoi 7/rb :+ufs

参考答案:    
标记此题
38#
 
单选题 ( 1.0 分) (组内38/70) 切至整卷模式 搜藏此题  
  Convert $1.2 \times 10^{-3}$ to its decimal notation.

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
39#
 
单选题 ( 1.0 分) (组内39/70) 切至整卷模式 搜藏此题  
  Write out the number .y ,o. vthl*rv$8.42 \times 10^{-5}$ in full with a decimal point and correct number of zeros.

参考答案:    
标记此题
40#
 
单选题 ( 1.0 分) (组内40/70) 切至整卷模式 搜藏此题  
  What is the result o4 e k6j+r)u7y ;pri 5uvvlmo -)wvge-cf $(0.410 + 0.021) \times (2.20 \times 103)$?

参考答案:    
标记此题
41#
 
单选题 ( 1.0 分) (组内41/70) 切至整卷模式 搜藏此题  
  Write the number 13.5 gigameters as full (decimal) x.tl2 bf:kh l8+1-7f7sbsj imp wzrd 1numbers with standard units.

参考答案:    
标记此题
42#
 
单选题 ( 1.0 分) (组内42/70) 切至整卷模式 搜藏此题  
  100 mL is equivalent to which ohgb, 33:bhjozed--za f the following?

参考答案:    
标记此题
43#
 
单选题 ( 1.0 分) (组内43/70) 切至整卷模式 搜藏此题  
  How many grams is fortydqhr4v 9/,bwf 4xi o-h milligrams?

参考答案:    
标记此题
44#
 
单选题 ( 1.0 分) (组内44/70) 切至整卷模式 搜藏此题  
  How many meters is sixty kilometersod* efrost7+dz63r:s al zd(* ?

参考答案:    
标记此题
45#
 
单选题 ( 1.0 分) (组内45/70) 切至整卷模式 搜藏此题  
  $1 angstrom = 10^{-10} \; m$ and $1 \; fermi = 10^{-15} \; m$, what is the relationship between these units?

参考答案:    
标记此题
46#
 
单选题 ( 1.0 分) (组内46/70) 切至整卷模式 搜藏此题  
  $0.00325 \times 10^{-8} \; cm$ can also be expressed in mm as

参考答案:    
标记此题
47#
 
单选题 ( 1.0 分) (组内47/70) 切至整卷模式 搜藏此题  
  Which one of the following is not equivalent to 2.50 y/ gqu;cigoa0). d: gxmiles? ($1 \; mi = \; 1.609 \; km = 5280 \; ft$, $1 \; ft = 12 \; in$)

参考答案:    
标记此题
48#
 
单选题 ( 1.0 分) (组内48/70) 切至整卷模式 搜藏此题  
  If you are 5 feet 10 inches tall, what isix -a3fu- +mycl 7i hy+kqps83 your height in meters? ($1 \; in = 2.54 \; cm$)

参考答案:    
标记此题
49#
 
单选题 ( 1.0 分) (组内49/70) 切至整卷模式 搜藏此题  
  If $1 \; inch = 2.54 \; cm$, and $1 \; yd = 36 \; in$, how many meters are in 7.00 yd?

参考答案:    
标记此题
50#
 
单选题 ( 1.0 分) (组内50/70) 切至整卷模式 搜藏此题  
  A hot air balloon rises to an altitude of 6il1dm+ p,z j;j00 fathoms. What is this height, in feet?pm+1lj, ;djz i ($1 \; fathom = 6 \; ft$)

参考答案:    
标记此题
51#
 
单选题 ( 1.0 分) (组内51/70) 切至整卷模式 搜藏此题  
  The average life of an animal is 70 years. Assume one numerical figure, write t,35z qypzt7 8 jboob(4yk a5vk7 bb4p o kz,y jy3az(q8kt55ovhis in power of ten in seconds.

参考答案:    
标记此题
52#
 
单选题 ( 1.0 分) (组内52/70) 切至整卷模式 搜藏此题  
  The mass of an electron isq/ sw u-gfg3.*.v v/ct 39lhyv he3smw $9.1 \times 10^{-31} \; kg$. How many electrons will make a mass of 1.0 kg?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
53#
 
单选题 ( 1.0 分) (组内53/70) 切至整卷模式 搜藏此题  
  How many m/s is $50 mi/h$ equivalent to? ($1 \; mi = 1609 \; m$)

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
54#
 
单选题 ( 1.0 分) (组内54/70) 切至整卷模式 搜藏此题  
  How much longer (perc-zwci 6 :(kfa*(sv zlwentage) is a 100 m dash than a 100 yd dash? ($1 \; yd = 0.9146 \; m$)

参考答案:    
标记此题
55#
 
单选题 ( 1.0 分) (组内55/70) 切至整卷模式 搜藏此题  
  Which is the largest arpwck-3 j076nrps g k6wea?

参考答案:    
标记此题
56#
 
单选题 ( 1.0 分) (组内56/70) 切至整卷模式 搜藏此题  
  If $1 \; inch = 2.54 \; cm$, how many square centimeters are in 1.00 square inch?

参考答案:    
标记此题
57#
 
单选题 ( 1.0 分) (组内57/70) 切至整卷模式 搜藏此题  
  Express the following sum with the correct( nz*t2*pc i+asujpd( number of significant figures: $1.00 \; kg + 1531 \; g + 2.54 \times 10^{4} \; mg$.

参考答案:    
标记此题
58#
 
单选题 ( 1.0 分) (组内58/70) 切至整卷模式 搜藏此题  
  A football field is 120 yd l 9g8h mukkfp1y0/izf00 ( tvyyong and 50 yd wide. What is the area of the footballf yhp k9tfk /g80 u1vi(0yymz0 field, in $m^{2}$, if $1 \; yd = 91.44 \; cm$?

参考答案:    
标记此题
59#
 
单选题 ( 1.0 分) (组内59/70) 切至整卷模式 搜藏此题  
  A ball has a radius of 3.23 cm. What is the vol)itf pclhvn/2) l( 8s3 vmj.slume of the ball in $m^{3}$?

参考答案:    
标记此题
60#
 
单选题 ( 1.0 分) (组内60/70) 切至整卷模式 搜藏此题  
  A thick-walled metal pipe of length 20.0 cm has an inside diameter of 2.00 cm hjacjb5t:yq2u3lui ,kw5 apg,88s+v and an outside diameter of 2.40 cm. What i,tgpjs8ihbl qw 3uy c255kvaa+8 ,:j us the total surface area of the pipe, counting the ends, in $cm^{2}$?

参考答案:    
标记此题
61#
 
单选题 ( 1.0 分) (组内61/70) 切至整卷模式 搜藏此题  
  The radius of the Earth is 3963 mi. What is the surface area of the Earth in 9* l53bt j/mkkyqprh:h1y;qb sqqqj3t;*1hb pmky h r9/:ykbl5uare meters?
($1 \; mi = 1609 \; m$)

参考答案:    
标记此题
62#
 
单选题 ( 1.0 分) (组内62/70) 切至整卷模式 搜藏此题  
  The average density of /srbcmj d .m/b-/y/wz4dqd u. blood is $1.06 \times 10^3 \; kg/m^{3}$. If you donate a pint of blood to the Red Cross, what mass of blood have you donated, in grams? ($1 \; pt = 1/2 \; L$, $1 \; L = 1000 \; cm^{3}$.)

参考答案:    
标记此题
63#
 
单选题 ( 1.0 分) (组内63/70) 切至整卷模式 搜藏此题  
  The mass of Mars, $6.40 \times 10^{23} \; kg$, is about one-tenth that of the Earth, and its radius, 3395 km, is about half that of Earth. What is the mean density of Mars in $kg/m^{3}$?

参考答案:    
标记此题
64#
 
单选题 ( 1.0 分) (组内64/70) 切至整卷模式 搜藏此题  
  Concrete is sold by the cubic yard. Whatf(x b,o xyl/b; is the mass, in kilograms, of one cubic yard of concretb(/,oxlyx fb; e that is five times as dense as water? ($1 \; m = 1.094 \; yd$, and $1 \; m^{3}$ of water has a mass of 1,000 kg.)

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
65#
 
单选题 ( 1.0 分) (组内65/70) 切至整卷模式 搜藏此题  
  An average human has a heart rate of 70 beats per mi5na0d ixfi.a; n7bwf9c 8ual 3nute. If someone's heart bel ;ciux5f a.f8bn id9wa03na7ats at that average rate over a 70-yr lifetime, how many times would it beat?

参考答案:    
标记此题
66#
 
单选题 ( 1.0 分) (组内66/70) 切至整卷模式 搜藏此题  
  A large school district has 300 school buses. If eac5c*,chbi6bdc iik0-ry c 8t; th school bus is used 3 hours each day, the average speed of the school buses is 15 mi/h, and the f6ri5*-ccb i, 0d;h tcc8bitk yuel economy of the buses is 10 mi/gal. How much does it cost to run these buses in 22 school days if gasoline costs $1.20 a gallon?

参考答案:    
标记此题
67#
 
单选题 ( 1.0 分) (组内67/70) 切至整卷模式 搜藏此题  
  A person stands 35.0 m from a flag pole. With a protractorn(ah-.ik)ig7b3t irx at eye level, he finds that the angle at the top of the flag pole makes with the horizontal is 25.0 degrees. gx- kthairi)7n.(i3b How high is the flag pole? (The distance from his feet to his eyes is 1.7 m.)

参考答案:    
标记此题
68#
 
单选题 ( 1.0 分) (组内68/70) 切至整卷模式 搜藏此题  
  Starting from city A, a car drives 2v ;1v6z izvx,s50 miles east to city B, then 300 miles north to city C, and finally 700 miles west tv zviz ;s6x1v,o city D. What is the distance between city A and city D?

参考答案:    
标记此题
69#
 
单选题 ( 1.0 分) (组内69/70) 切至整卷模式 搜藏此题  
  The last page of a book is numbered 764.(each sheet is double-sided) The book /cf hyehjsr0-l:0f., r.2mp(ws )e1qdt loe vis 3.00 cm thick. What is the avereh -eyrtlh.fjrmpfw/ ) .o021c ,eqvs sl d:(0age thickness of a sheet of paper in the book, in centimeters?

参考答案:    
标记此题
70#
 
单选题 ( 1.0 分) (组内70/70) 切至整卷模式 搜藏此题  
  Wall posters are usually sold curled up in cylindrical cardboard tub2 oeglbipw6hi3c5.i; )t, dp tes. If the length of the tube is 84.5 cm, and the diameter of th), cb pe5g hotilpiw6;.d3 it2e tube is 2.40 cm, what is the area of the poster, in $cm^{2}$? (Assume the poster doesn't overlap itself.)

参考答案:    
标记此题
71#
 
填空题 ( 1.0 分) (组内1/6) 切至整卷模式 搜藏此题  
第 2 题组 (共 6 题 6 分)
  How many significant figures do each of the following numberspcuuv (x dg03wfs 9fd,3hka+ 7 have: (a) 214   , (b) 81.60  , (c) 7.03  , (d) 0.03  , (e) 0.0086  , (f) 3236  , and (g) 8700  

参考答案:    
标记此题
72#
 
填空题 ( 1.0 分) (组内2/6) 切至整卷模式 搜藏此题  
  Add $9.2 \times 10^3s + 8.3 \times 10^4s + 0.008 \times 10^6s$ =   $\times 10^5s$

参考答案:    
标记此题
73#
 
填空题 ( 1.0 分) (组内3/6) 切至整卷模式 搜藏此题  
  Express the following sum with th6p (v2j s6p hffuh,1/4ftt nnp:kyj8ye correct number of significant figures: $1.80 \; m + 142.5 \; cm + 5.34 \times 10^5 \; \mu m$ =    $\times 10^2 \; m$

参考答案:    
标记此题
74#
 
填空题 ( 1.0 分) (组内4/6) 切至整卷模式 搜藏此题  
  Determine the conversi-e6q8cresh qigdd+kp96b k/+on factor between
(a) $1km/day$ =    $mi/h$ given that $1 \; mile = 1609 \; m$
(b) $1m/s$ =    $ft/min$ given that $1 \; m = 3.28 \; feet$
(c) $1km/h$ =    $m/s$

参考答案:    
标记此题
75#
 
填空题 ( 1.0 分) (组内5/6) 切至整卷模式 搜藏此题  
  A light-year is the distance light travels in onepp, .mkmhrkd*;b 1 .qw year (at speed = $2.998 \times 10^8 \; m$).
(a) How many meters are there in 1.00 light-year?    $\times 10^{15}$
(b) An astronomical unit (AU) is the average distance from the Sun to Earth, $1.50 \times 10^8 \; km$. How many AU are there in 1.00 light-year?   $\times 10^{4}$

参考答案:    
标记此题
76#
 
填空题 ( 1.0 分) (组内6/6) 切至整卷模式 搜藏此题  
  When doing a physical experiment, Pe6;arwh9xfg -l ter measures the mass of an object ten times. All of the measurements lie betweerg9h-6;awx fln $35.4 \mathrm{~g}$ and $36.6 \mathrm{~g}$. What should him quote as the absolute uncertainty in the mass? $\pm$  (数值)  $g$ (Only put numerical value in the blank without any units or signs)

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
  • :
    •
    总分:76分 及格:45.6分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题，此次习题练习共有 76 道题
    本系统支持习题练习，作业与考试三大模式，作业考试自动评分，成绩排序一键导出，可设定动态变量同一试卷千人千题
    如果您对本系统感兴趣，想加入我们或者想进行任何形式的合作，请加微信 skysky1258

    试卷内容到此结束!   © 2024 题库网 (https://tiku.one)版权所有

    浏览记录|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

    GMT+8, 2024-12-5 03:36 , Processed in 0.392230 second(s), 176 queries , Redis On.