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习题练习:Physics Unit30: Nuclear Physics and Radioactivity



 作者: physics   总分: 71分  得分: _____________

答题人: 匿名未登录  开始时间: 23年05月01日 14:22  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the atomic particllty bgpg,m ww i5.eyc,55+0ev es has the least mass?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of an atom id1b6s/ .duk oimsmw03s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists oftne j: h47xzaojhbq;q.+4gqu2v6 h 9lv,oyg8

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's atomic numb-mllcu:c pj62 er is determined by the number of

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's mass number is determined by b6odeyrqg c.40tkqvn9kf9/,hr6pvr2 kb/ 3h the number of

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an atom's atomic number is given by Zuy ,b*v83kzzu , its atomic mass by A, and its neutron number byuu,*vyb8 zkz 3 N, which of the following is correct?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a neutron is emitted from an unstcr p+q:d f65k06vrltk.p6)g kt:g cbn able nucleus, the atomic mass number of the nuclervb 6nttcq0dgc+ k.5kk6r:f6p: lpg) us

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protons in anliq5wuw v*qg.g8nj,1 atom is

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  There is a limit to the size of a stable nucleus be+ku 6l k855pt lzwf)wocause of

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Atoms with the same atomic number but with different numbers of neutrons are zwes0zdc6jsea044 b7hr7kn 6refer4d70szrn0ecs67wbzhe j a6 k 4red to as

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an element hav :museri*m9)uy+5t0z r8c jxq4 a +wqne nuclei with

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unit is d110dhdk jhm9o efined as

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the masses of(x9vy2 0isy qtb 8qhp+ its separate protons and neutrons, the total mass of a stable nucleus is alw+ 0ytx8sqbv(h2iqy9p ays

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When nucleons join to form a stable nucleus, e02 cc,s cx6o7ivt16i :zouw;t fdrm6snergy is

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy of a nucleu,ld4vd1,aav i v y4no1s is contributed to

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per* zw6fx4 v lndne/ (jg8a)1m6nrcuc n( nucleon is

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nuclel45/*w (;v k fjrzbszaon

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following statements concerning the nuclear for* b5)cb 6w,gabjzppj0ce is false?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostatic force, the nuclear force between adjacent proto0zbw /xlc et4m(p :fhm.e*xt5 ns ixbe .(xel /z:tpf c0 5mt4*mhwn a nucleus is

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penet(6/hha;my2 ee1a7ndd0k at *prvf2tdt) r6 ohrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratj5:nz l ,)jpbje

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate8y p)yllfba8 )efh(g;

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An a particle is also oa*vx y/uoi5auz;5y: 7x(seeknown as

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b-$ particle is also known as

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b+$ particle is also known as

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gamma ray is also known a, , r/0eegy zbbxn2(txs

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle will be attracted to dc 3irq8 0de8ka

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha particles have an atomic mass e(b5y2)bu otl h;( j2xzh cls()v h* sggv3a4mcqual to

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is emitte1mfov 1 frnl0o8b yk47pyc;; fd from an unstable nucleus, the atomic mass numbr ;py1ofm8ko14cbfv f n;7yl0er of the nucleus

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is emitted from an unstable nucleus, the atomic n0:zs s.hdqm9x umber of the nuchs:9z. 0dxqmsleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - MY - Ma) x 93,fx*sce bl* *zc3nss31.5 represents

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In beta decay

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b+$ decay

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b-$ decay

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is most nearly the s14u xmv+gnd5/3go laj ame as a gamma ray?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a gamma ray is emitted from an unstable nucleus,yakc npxksy c*/v ,y( ;6*w)wc

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has the most 9jwq0)x vfl6+38(ar xychqh i1 2odha mass?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In all three types of radioactive decay, what value is conserved in ad/ ysa7m5f 5iq :zzf-g( m9rvkjdition to electric charge, ej k:mf /5q 7yzfa-5igvsmzr9(nergy, and momentum?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the half-life of a ni t(5.pjb;dd radioactive substance as it decays?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In radioactive dating, carbon-14 is often used. s2.s3oev ;fg5ywd8p*lk g:vgwkn 3r / This nucleus emits a single beta par2lkg;3 3nsp eo/y5rswvgvwg: fk . 8*dticle when it decays. When this happens, the resulting nucleus is

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that uses a magneh r29)89 etg 9,mox dajqaih/xtic field to curve charged particles is a

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that uses liquid hydr+lz* dz9qh o+fj 6,8sjtooje4pxw6 /mogen is a

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Cloud chambers have been rr(p*f np;q;k:wg+oedhi /a g/ eplaced by bubble chambers because

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomicd; 5rgl7p k bjq6i;n2 dlow30b mass number of 14 and atomic number 6 has how many protons;llpd7i635bj brd02;w qgon k?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic mass number of 14 and atomic number 6 has how8e6c8 vbs pwr w,4bl*2hys 6by many neutrons6pv6,cy bs wr h28ylse8*wbb4?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calc/agx6 uk tsu/:ium 39 are 20 and 39, respectively. How many nucleons are i/t uuxsa/ :6gkn one atom?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calbs ;jh8 0u2+r5h cnjwy0 p0ugmcium 39 are 20 and 39, respectively. How many el2wc;0 r5n0shyhupb m j+jgu80ectrons are in one atom?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calci-mmtmb p4ls h;)7i row/(lh 3hum 39 are 20 and 39, respectively. How many protons are inmolmm;th4hp rh(- /3i7 s)blw one atom?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number fola 2uppdn6q2 :o9 ke7or calcium 39 are 20 and 39, respectively. How many no 9pepknl62q2a 7u: doeutrons are in one atom?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a 93 Nb nucleus, the number of protons, neutrons, andw,phf 8/uf8k w electrons is 41

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many protons are there in t2m1sjf17b72s oqcmjzz*sk6xhe carbon-14 nucleus?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an element of atomic number 15 has 6ugfxnx8 i4*van isotope of mass number 32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding 8cl29 swaui1jg*4qtgc( q-mj energy of $^4He$.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is requirejbxcad-m 1+ygyc 0o74iy0,6ghez kc+d to remove one proton from $^9Be$?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 88 goes through alpha dp01 mswucyf*p i,l7fcu*:dg 9 ecay. Its atomic number is 79wu0*glim:s,yc 1fpdf * cup now

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom has 98 protonqd57g 6 o0n ho+njjh6os and 249 nucleons. If it undergoes alpha decay, what are the number of protoo6+gj nnoq6hh5dj7o0ns and neutrons, respectively, in the daughter nucleus?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A carbon-14 nucleus decays to a nitrogen-14 ut hkep2fo68v 9*jzy, nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.uo2z9p8h* etfk6j,v y003074 u?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 6 unde/epv; +0zvrlu rgoes $b-$ decay. Its atomic number is now

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the half-life of a mater.dxe cjlb2,y3 ial is 45 years, how much will be left after 100 years?2.x,be3 dyj lc

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the probability that an atom will decay this year if its half-life is 24.57oa +p-jdamz iz-umqv/ff6 7 yearsmzoaf5 a j md7.i+qz-v 6/-ufp?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was certified i(a3j31cfu jd 1xm+c xat $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive sample has a half-life of 10 min. What fraction*p cvy37)mum hs,u r6s of the sample is left afs* m)6vm73hys up,cr uter 40 min?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The half-life of radioactive iodi cu 3cg87)hofzne-137 is 8.0 days. How many iodine nuclei are necessary to producez7)gc3 cf8ouh an activity of $1.0 \; \mu Ci$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive substancme 8*k7e r:ovk i45pwce with a half-life of 3.0 days has an initial activity of r:kckivp w 7*4mo8ee5 $0.24 \; Ci$. What is its activity after 6.0 days?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The radioactivity due to carboiv; / /y0 tw:molzya,pn-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produced 160 counts per minute. The half-life of carbon-14,ywt,y /za o/v;ilp:m0 a beta emitter, is 5730 years. Thus we would estimate the age of the artifact to be about

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long would it tak4v ln;+m:hr oky8rv*de $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long will it tak*i17mpn,f ) vfc3lx,kos ri3bk pk5d5 e a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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