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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 particles has the least mas4)x1gmo *tjysm0 fj/o,1g fdx s?

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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 is5*o) nliz +mx99rx wfx

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus c.7iza gg5b3cbonsists of

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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 number is determmp50 tpp6/wqgined 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 det8 2:tl)x rahwyermined by 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 Z, its atomic-1 bax ivyz 7rpel)97. fr4khc mass by A, and its neutron number by)p-c1 er7xhy4ak z fv7.9rbi l 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 unstable nucleusrpi m3 6x/lhk5, the atomic mass number of the xr/m5k l3pi6hnucleus

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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 l87 5li(ijh: qhjtg2u in an 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 nucul.lnwgb8vb + +gb6x3zzv6( oleus because 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 neus))j mc2js;-urte9ei trons are referc je)-t)js2i;urse9m red 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 have nuclem unsq+wr3 qi(ce1w rude:,/-i 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 defined d, r;; urebs+8a2yjk4mcf:m+fcblp3 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 itsctuj,+y+ohtkg 1yz g vlq+axh* 4/(+d separate protons and neutrons, the total mass of a stablo,j1+yhlut dxt qg *ykz ga(/ +4vc+h+e nucleus is always

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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, en9,z 3 :gviz4mdx ro,kuergy 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 nxbghq8wm /+b 4f r.9kyucleus 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 pne/;3)ru q +d qgbx2icer 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 nucleo mtq0h:c,*mgpt.gy6,s 2c leen

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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 force if. dmbc3e g/+e eij)g7s 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 prtiv8+o5/k kul otons in a nuclvt8l5+ ok iu/keus 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:7uqkgm, gr*ap t9a6nj/ l+g uavlw63rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrat )5zqlds9lr n;e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrajvyu*6 4c:q5. ow pyppte

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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 known arzu.2nj gk;hs b*;sy2s

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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 knoi ch.l d .enx3xdo (:l(2,czxpg7af+fwn as

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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 attraca,qc1u v6n:v9;cq,iz- wjr t cted to a

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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 mass4)yxa 8sbx +wtvxs2e8 equal 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 emitted from an unstable nucleus, the atomvj4a uy+(b8eiic mass number8ujb(iva+e 4y 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 unsyo/)x,+ph ozhtable nucleus, the atomic number of,h+oyoxhpz)/ the nucleus

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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 fqj4/fy d;(xl- Ma) x 931.5 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 same+zx9jy lc4*d k 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 emuw/ 42(tfary*qq l/aj:,d qx oitted from an unstable nucleus,

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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 maux)ohe c kp(4 l.u6y9iss?

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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 vapg;gwz)c aj:n:g b67i/likq j i9my5.lue is conserved in addition to electric j.:k : cg;qni6pjl)y/bggi ia75z9 wmcharge, energy, 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 radioactive substance a 7y i3sb:x:e:r5oy zecs 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 ib e+ -yoqx -dr7;s1blus often used. This nucleus emits a single beta particle when it decays. Wheneqolbu1 --+y;bx s7rd 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 magnetizt 7,/mzc uu 99hxqnie)/ s q3ovwsh4/c 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 rz )- eetk x;weextet0+m*,0ethat uses liquid hydrogen 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 replacf s eq)/.lxk)1ehp:cb9riiu 2ed 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 atomic mass number of 14 and atomic number 6 has how m -lebk5e/m aqgg,a ,0nsnry8t77wu:j any protons?-wq0bten8 5,ug aem a jgn/l77rys,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 mas;c(oau/ko9 7w.3wrw7;:ct aal odpg qs number of 14 and atomic number 6 has how many neutrons9(qwrowd7 w c ;k3a/ta7pc:o .gluao;?

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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 calcium 39 are ;d *r98j,ro m vbognq720 and 39, respectively. How many nucleons are in*qvjb87rm go9nrd;, o 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 foomm+;*p eywq7 r calcium 39 are 20 and 39, respectively. How many electrons ar;ymp*+ 7mo ewqe 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 calcium 39 are 20 and 39, respectivel g 6(oqxrv2md-tr7 gi2y. How many protons 6 tv7 gidm(rgxqr-2o2are in 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 for calcium 39 are 20 and 39,8,vr;7-oo v iof5tztx respectively. How many neutrons are in one v7ftxoi5;o,z8 r-t v oatom?

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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 protb44xnj q 3gni **dgu jsf- z2j*vng-p,ons, neutrons, and 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 the carbogva;a (r lug41 m02cdun-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 noi+g0a(yn4x j umber 15 has an 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 ene7v fvls i1v,o2rgy 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 rn rm 5-uktywwx 8 p/2bf9mv+/required 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 thr;w-kx bvu8sliyejk d5 qpu, :o-l-7w,ough alpha decay. Its atomic number is 5 lujueixsk-w7lb8v koq -y wd;p,-,: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 protons and 249 nucleons. If it undergoes alpha decay, what gzf)b ;s,vso0 xz/n*q are the numbn/sbs*g;qv)fz o,0z x er of protons 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 nucleus by beta dcx+ ejay )55vgecay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a massc +j) ay55exvg of 14.003074 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 u0*y4vnttwdj ukp;.b )*wf ;4xjmgc :xndergoes $b-$ 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 material isn cq7s+9 2;s0ngpklrh 45 years, how much will be left after 100 years? q0h7+ gs9snkcr;pn2l

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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 it k70au5ue4 v6zllpwy+ s half-life is 247 years?u+zeu w7 ply 5lk40v6a

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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 aq 5wgszfzm;9(d t 9.ret $10 \; \mu Ci$ 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 sample5.p arwth-br.li z1e-mdf59 yjwsg :- has a half-life of 10 min. What fraction of the sample is left after 40 mw a5-d:-rl9z1wyp-5geft.hj. rbs i 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 iodine-137 i,g:uy3*p94 rxsxwev ds 8.0 days. How many iodine nuclei are necessv 9 sw *d,pu:gx3x4ryeary to produce 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 substance with a half-life of 3.0 days has an initial activity ofh (d2)lv 1z;j-cshij s i) j h; dz-2slchv(s1j$0.24 \; Ci$. 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 /*gnb) jmzgde87xh2+r ymhf5 to carbon-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. Thejm*8e r h/f57b2h g+nm)dygx z half-life of carbon-14, 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 takeqp 5b zpa(z;r4 j xlrnc)q4l() $4.0 \times 10^{20} \; atoms$ 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 take a ije44ysxnm: .) f;3hbf ga bo($4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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