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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

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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 usindq3-xx 6ut4wmg a different scale. They rw3 4mx 6q-dutxecord their results as follows:
Which student used the least precise scale?
Student Mass (g)
A 49.06
B 49
C 50
D 49.2


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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 an5s mhhck va* ha,+;b-d object, each using a different scale. They rem;+*avd k5acb,hh-h s cord their results as follows:
Which student used the most precise scale?
Student Mass (g)
A 49.06
B 49
C 50
D 49.2


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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 expressgbf, qul8 4q+1y: dzhhing very small or very large numbers is

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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 of the SI syste3pbcw77 ulrtst99;3orfgh -j m except:

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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 conm0mg;vvdz0di 64 nj 7btains only SI basic units.

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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 system havrb)g5kxxd l 12e?

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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 7iym04eh yl::l)l ki rtime is

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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 un:5 /qbp6l hgcxg;yw;yits?

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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 onekpdp 36;jgr1x 6scg(b -thousandth is

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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 ob60b9ya( + tf a (w*bt+isdrllne-hundredth is

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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 thousand ig +.wewb76xx h63nc48h ph ogqs

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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 usinl; avjuv70pc+ g a prefix.

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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 factor be, 1rr.rn3n8df wbvl q9zp0* rxtween $km/h$ and $m/s$?

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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 hcuh5hze--73b o+nit -1 yxlc between $km/h^2$ and $m/s^2$?

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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 betweenpyk(oi z; )b*n $cm^{2}$ and $m^{2}$?

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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 4h s6 o1yct/bpan object is given by the equation $x = A + Bt +Ct^2$, where $t$ refers to time. What are the dimensions of A, B, and C?

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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 thesfg 4duwde1fq12. o6 f measurement $2.58 \pm 0.15 cm$?

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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 uncertain2 wd1;vyh6cmqv39-) o xi:njya,zyup ty for the measurement 5.2 mA?

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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 chyg47wx3xd; kircle whose radius is $1.8 \times 10^{4} \; cm$?

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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, andjt1n. ldykozb (2mqa*6p11s a its approximate uncertainty, of a sphere of radius $1.96 \pm 0.01 \; m$?

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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 1y ty3wd 5)d;hz0001 is

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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 in 0.01500 isz05dbo: t/wnn

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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.h o+mvpqg-slqx ta97.p3 l./m040 is

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24#
 
单选题 ( 1.0 分) (组内24/70) 切至整卷模式 搜藏此题  
  Which of the followinr:6w fme*aj2c *5 nixc4km/f(w+p kog g has three significant figures?

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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?

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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 gl h4928ewl-w8gcw tr 103.5 Volts and 102.24 Volts if they respectively represent two measurment v-ecw8l 48 wlw9t2ghr galues of Voltage?

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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 rectangle with dimens )u4y8p 4fczljion $12.56 \; cm$ and $2.12 \; cm$?

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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 significant figures?d,qh5wev(y7 p w / 5ou+ntg 9ra9gs9rv

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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 m1 1w 4b6-;cgdcv1vxgkwge+7dnvf9r $55 ^{\circ}$?

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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 1.12rnb0/ + u5aa( zdw8bst5 m and 0.606 m, respectively. Multiplying, your calculator gives the product as 0.68175. Rounding properly to the adus5rzb(t+n0a wb8/correct number of significant figures, the area should be written as

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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 1.125 m ud l v:dwx(o9z:i-du /+kkg a2and 0.606 m, respectively. You calculate the rectangle's perimeter by adding these and multiplying by two. Your calculator's display reads3.462 To the correct number of significant figures, this should be writte(a/dxkv z u9-diolg:w+dk2 :u n as

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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. Whyo94rzj qzvjblt i.5):4tli- at is its area?

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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 15 m long and 13.7 m wide.k qx7iw66p;a4nx0 fe8jhl r)h What is the length of a diagonal from one corner wq; xkja46xf86r n7leih)hp0 of the garden to the other?

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34#
 
单选题 ( 1.0 分) (组内34/70) 切至整卷模式 搜藏此题  
  Select the smallest valut a1d pd f;k1puq+2r5ve.

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35#
 
单选题 ( 1.0 分) (组内35/70) 切至整卷模式 搜藏此题  
  Write the number 0.00d)r4m, x9srj2 .vt cad045 in scientific notation (power of ten notation)

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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 expresse7h n cohmys h0q;1s cxvc5/q70d as

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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 scien zr;j+oig89b16m m;ri55r jw ry zq7mktific notation as

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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.

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39#
 
单选题 ( 1.0 分) (组内39/70) 切至整卷模式 搜藏此题  
  Write out the numbero-nn nn;+; nb,je q9gkma2k6yfx; wf; $8.42 \times 10^{-5}$ in full with a decimal point and correct number of zeros.

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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 of vd5fd 681s.)gi l,js 7v ucoky$(0.410 + 0.021) \times (2.20 \times 103)$?

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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 7mhno5q:f/k5bers8 mfull (decimal) numbers with standard units.

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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 whi ntar dm39a: gu)85e hw.hj1dwch of the following?

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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 forty milligrams? xtt., l(pwq fuuw61w4

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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 sixt pr .sz+ 8a-gl/c:wyrvrd.(o hy kilometers?

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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?

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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

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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 miles?ii m5,ssozkv--a0g-: d y,85zjzqki j ($1 \; mi = \; 1.609 \; km = 5280 \; ft$, $1 \; ft = 12 \; in$)

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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 inchyo :5wpx dir1:qf6 xr/es tall, what is your height in meters? ($1 \; in = 2.54 \; cm$)

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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?

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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. What is this height, iif ye)w2m) ru6n feet)2w fuy 6er)mi? ($1 \; fathom = 6 \; ft$)

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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 a: /jmremgq0e)t0j eb*n animal is 70 years. Assume one numerical figure, write this in power of ten in seconds te qj0emegjb)0:mr/*.

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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 istp 3i bu +wk2)kn (,ijg8d4utr $9.1 \times 10^{-31} \; kg$. How many electrons will make a mass of 1.0 kg?

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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? ($1 \; mi = 1609 \; m$)

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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 a 1 ;2rlch m(omzo7dy(jz:q3l 3v 00 m dash than a 100 yd dash? ($1 \; yd = 0.9146 \; m$)

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55#
 
单选题 ( 1.0 分) (组内55/70) 切至整卷模式 搜藏此题  
  Which is the largest9kuvnl-x5upyvn. / -ji;m; wc area?

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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?

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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 w3wg+,3. tqax gau q.w *fvn0ycith the correct number of significant figures: $1.00 \; kg + 1531 \; g + 2.54 \times 10^{4} \; mg$.

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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 is the area of the footbh 6i+p j8 q0rrs vd7r*5nuppq*all fieldn u sr ripj8vr+h65qdqp7p*0*, in $m^{2}$, if $1 \; yd = 91.44 \; cm$?

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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. W9 ep0 b2 v edmhjcrf7*24ueh,shat is the volume of the ball in $m^{3}$?

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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 diamex/52 2xthgo3s 0d hsxjter of 2.00 cm and an outside diameter of 2.40 cm. What is tgh02 sod xxh jst32x5/he total surface area of the pipe, counting the ends, in $cm^{2}$?

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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. Wha 3vn/y,abjazyt q1j,:grq6h 3t is the surface area of the Earth in square metebty/1 rq jg,3:,jv qnaa6hz3y rs?
($1 \; mi = 1609 \; m$)

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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/ue(v:n ibqa 5gby ,q0jv)q m0 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? ($1 \; pt = 1/2 \; L$, $1 \; L = 1000 \; cm^{3}$.)

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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 $kg/m^{3}$?

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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 ia+) jgaf5mnd)u+n8qgq )h+dmass, in kilograms, of one cubic yard of concrete that is five tim+gj58 u+idf+qnd)mhqan ) a) ges as dense as water? ($1 \; m = 1.094 \; yd$, and $1 \; m^{3}$ of water has a mass of 1,000 kg.)

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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 minute. If someone's hd9 m/gh3 o7lb,flxbn 1eart beats at that average rate over anol1fxg hdb9 , 3ml7b/ 70-yr lifetime, how many times would it beat?

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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 bus is used 3 hou1fu 8 junjchfvu,7i:ghy* 6w 9y 0n.wfrs each day, the average speed of the school buses is 15 mi/h, and tuv06 wn*iff .yuyh w8c,j nug:19f j7hhe 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?

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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 protractor at eye level, he 69.3ss 0mx*ftat mvxd finds thfas63 d vtmxs9tx0m. *at 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 from his feet to his eyes is 1.7 m.)

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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 mile9-bm4bybt .aetm 2e- ,ple n/us east to city B, then 300 miles north to city C, and finally 700 miles west to city D. What is the distance between city e2leb tnu ptm/ y--4abe9,mb.A and city D?

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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 qpq7oc*7r1+3 j dktlr double-sided) The book is 3.00 cm thick. What is the average thickness of a sheet of pacj*rp7qrqdo3+l71t k per in the book, in centimeters?

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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 cd6 zq.;xje5f eurled up in cylindrical cardboard tubes. If the length of the tube is 84.5 cm, and the diameter;defq. x6 jz5e of the tube is 2.40 cm, what is the area of the poster, in $cm^{2}$? (Assume the poster doesn't overlap itself.)

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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 numbers have:qhv) s*uuxrx f/)-o j. (a) 214   , (b) 81.60  , (c) 7.03  , (d) 0.03  , (e) 0.0086  , (f) 3236  , and (g) 8700  

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

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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 signid7f1xxcf3 7qh ficant figures: $1.80 \; m + 142.5 \; cm + 5.34 \times 10^5 \; \mu m$ =    $\times 10^2 \; m$

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74#
 
填空题 ( 1.0 分) (组内4/6) 切至整卷模式 搜藏此题  
  Determine the conversisiz j+ urgp(ee*p9ly52wp -. yon 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) $1km/h$ =    $m/s$

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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 year (at 6j .mg69nz-kk/xqj2 yd d vyi5speed = $2.998 \times 10^8 \; m$).
(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?   $\times 10^{4}$

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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 massazqfd9 ag vi(ry f3gfxbe;)47-z ;f vgx(1yp- of an object ten times. All of the meapgg (4;iv 3x-(fqffzza da;fvg9 y-yx7 ebr1)surements lie between $66.7 \mathrm{~g}$ and $67.3 \mathrm{~g}$. 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)

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