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



 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 object, each using a different 3nrer rr 57zzs1o:1:e/ us matscale. They record their results ases/ze13rmuszr7tnar 15: o r : 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 a;66zv,y btlap1s 4gwhn object, each using a different scale. They res6,; vag6 hw4plytbz1cord their results as follows:
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 expressing very small or ved8--ye+;cyuuw 7opeudr oi5 , ry 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 units o (c+1rwlij6plhzsz7 b0 u he,+f 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 which contains only SI basicqwxjc2-: zrr-)hv e+s4l cij3 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 does the SI systev0nv5xd aobebl0 id 779m3r u)m have?

参考答案:    

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 time isq *: atrb7gdt)

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 ev )ipcd.f/ g4e*al* cthe fundamental units?

参考答案:    

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-th5b2*o n0a n hnx+k,fqlousandth is

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 o+w.ltf iz0r lfj0 v2g6ne-hundredth is

参考答案:    

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 forn0b6suffl; laj 5ric6f;h /, e0)oyzu one thousand 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 0.02 days using a prefix-4y.b wgk) r6 efe.h:z,eod wx.

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 facto3fd4ah20 ld;n hv0 defr 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 be eih/0uey 97eltween $km/h^2$ and $m/s^2$?

参考答案:    

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 factor betw) hmv61f xesz13ww;ai.r fx, yeen $cm^{2}$ and $m^{2}$?

参考答案:    

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 is giveecaav6/ s7g:i n 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 measuremenmi67 rr9p *i*)yqto :vg:mxvzx5d0qtt $2.58 \pm 0.15 cm$?

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 uncertainty for the measurkg) md7,pyn 1zement 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 whogphv;qz 94.60) txes md5ffu7qj)e ttse radius 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 approxima(ehek3m 2w 4rlte uncertainty, of a sphere of radius $1.96 \pm 0.01 \; m$?

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 1l c0zful 5;yjt )*sr4g0001 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 inv. erims4*a0* rwip7a 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 significant figures in 0.04 z. rsdfz5ch070 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 three significant figures?wm1d zz, pu/9 m rdwp+;li8/tg

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 and 102.24 Volts if they respectively re)r5+fwg2 u +xy2n xivd:o vji2present two measurment values ofr2o+)d2y+2g: ni5xuwiv x vj f 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 rectang)u1:n9anhgbwz8tzy 1vi o o+4 le with dimension $12.56 \; cm$ and $2.12 \; cm$?

参考答案:    

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 considering smo0v:kmn y0 m q0f80bfignificant figures?

参考答案:    

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 ofwl n5+iiqr dn;6 +-+fcri jxu1 $55 ^{\circ}$?

参考答案:    

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 1.125 m and 0.606l :plf(xv 72xsk:o3aq m, respectively. Multiplying, your calculator gives the product as 0.68175. Rounding properly to the correct number of significant figures, the area should bvxofps(klx2 ::al q37e 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 widthc ul4 +i84x. cnwr,lul of a rectangle are 1.125 m and 0.606 m, respectively. You calculate the rectangle's perimeter by adding these and multiplying by two. Your calculator's displayui 4cllxcrn.+, 8l 4uw 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 its area?i01 .o29gee+ l8l4 ilnczifqr

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 measures xcst:a/ie q7:x/s ahts ms1c4kr 3u(fmq ;+,s15 m long and 13.7 m wide. What is the length of a xc:srsq3:umaa q(e ;fssi1 47 ts,/xh tkc/+mdiagonal 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 value.hs n nw2fml3;9m -r+bh7ori wa5k*ph 2

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 scientifid np;:e.q:yl sc notation (power of ten notation)

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 expressea. v pwx rjf0v1z2,vi-. /sq4* yiqzbcd 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 q tel)3ni(a8x2:g2 cy quyo2cnotation as

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:    

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 4xazopo945rdv(a .ny-+q hcw $8.42 \times 10^{-5}$ 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 od-rx 0ay5;a m,dzc(r if $(0.410 + 0.021) \times (2.20 \times 103)$?

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) numbers with standard unia-kd. 7mt/*uqyqn fwvknh/0m y 8e;t,trt44nts.

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 o3ulu** vihfi ;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 fok hc)x.ouf xp;k+:p(jrty 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 kilom l+dl w/up1z xn(u5u)ueters?

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 equivalenl s9 d )8a;cpe-pkwk2 )usf0ebt to 2.50 miles? ($1 \; mi = \; 1.609 \; km = 5280 \; ft$, $1 \; ft = 12 \; in$)

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 taof+emxzmj : l,rf..l+4,hgr*gi qyq4ll, what is 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 600 fathoms. Whatt1h 8pj yc1ggre.:nd0p+-gz n is this height, in fee.nrn 1g 1 hp0gzyec 8jp:+dt-gt? ($1 \; fathom = 6 \; ft$)

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. Ass7.r zpbhuo z:cx(+7 kaume one numerical figure, write this in power of ten cp7 z(7xz.h: obkau +rin 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 ioonp4ykqr 8gri1- a;u ,9vgq-.hk )j is $9.1 \times 10^{-31} \; kg$. How many electrons will make a mass of 1.0 kg?

参考答案:    

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:    

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 (percentage) is a2*lnho x.h(ejz9u t q/ 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 area?:r nh.(ktl7 omncj 4rg(oj/z:

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 number of signty(k 2t-+sefu 0 mrd9mificant 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 long and 50 yd wide. What issjxwr o3 ( j(+lb1s9ni the area of the football field, i3w+j rsxls1jon ((i9bn $m^{2}$, 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 tz2r(ndc,41 bsxuy:n x he volume 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 hasr ft/*1:qc:t zg6lh yc an inside diameter of 2.00 cm and an outside diameter of 2.40 cm. Whttrzc : q:1cl6*/hygf at is 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 7j. aj- 3go 9mstbow- n, nqb:td3+tzothe surface area of the Earth in squto+tdqo :bbn3gjw-. -zo7s3a ,9njtm are 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 biw o1; 57c: jcuwgts9mlood 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. What is the mass, in kilogr8hw h9rx .j0hl dzgf+aui;,t 7ams, of one cubic ya.f d0x zg;8ajhth9i,w lr h7u+rd of concrete 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:    

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 dm*y df+:oil0rate of 70 beats per minute. If someone's heart beats at that average rate over a 70-yr lifetime, how 0id :odmy*+lf 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 each school 2 k 2d, sfe.vmmp(lz:fbus is used 3 hours each day, the average speed of the school d 2l(vp,:kmm ff2ez. sbuses is 15 mi/h, and the fuel 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 czv*: b;7;tdzwjdfih 2c ;.b h2odei7 protractor at eye level, he finds that the angle at the top of the flag pole makes with the horizontal is 25.0 degrees. How high is the flag pole? (The distance fzhb.;2:c7o *bj v2 d7id;cidh wezt; 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 250 miles of-v6xu 77lup ve6dk-east to city B, then 300 miles north to city C, and finally 700 miles west to city D. What 7 edu6-o fpu vx-6vk7lis 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 n/ lb- dl1keg*vw,f s4+mq d9stumbered 764.(each sheet is double-sided) The book is 3.00 cm thick. What is the average thicknqd k-vbg1 l9 lftse,d*/ 4ms+wess 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 c-(ye: -8m 9c japktv30pqi kkhardboard tubes. If the length of the tube is 84.5 cm, and the diameter of the tube is 2.40 cm, what is the areaky:cje0 -p-m k9pti3a8vh (kq 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 nu p7kvk)j7xep2-d:h wtrvh5e yms/: 9qmbers 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 the correct number of sig2dz( nh 4cd2asnificant 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 conversion factor -ukgqe iclh kx:a+5/6between
(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 one y;l,,cx9yk w te+x9bpgear (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, Peter measures the mass of +ao v3 m (e6n;:v)./ z nbq3izjhpxydman object ten times. All of the measurements lovdyax.j: / (mi6q;)vb zne+z3phm n3ie between $23.9 \mathrm{~g}$ and $24.1 \mathrm{~g}$. 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:    

  • :
  • 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

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

    GMT+8, 2025-7-2 09:18 , Processed in 0.407204 second(s), 177 queries , Redis On.