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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: 游客未登录  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 partic(wde)32 x )/v ) nprms/nfmcglles 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 l t64.placcm-s 6 dg4djw,i 2jis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cones(pvh+,lnt- f0 bk9 fsists 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 determined z3-:ec lh+fn gby 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 isih( 9 r5gun4qecdvn, 2 determined 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 attosr( b1rinq12lan b38;.ezc omic mass by A, and its neutron number by N, whic2nn;a o1rb( c8rq zilbe1s.t 3h 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 unstab+9f6 o.gncyx1b iw 9esle nucleus, the atomic mass number of the exi+9wog.c6b9f1nys nucleus

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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 iiy69-)v sqx/ j o;msbsn 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 sizenkko,: xda6. , bbk q:+4lwhaq of a stable nucleus 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 neut 4ta3ywcxiy qp5vl;+ 0w;t *iadx-c1trons are referredl1tv5 wy dxc-atyiwq*;; taxp04 3+ic 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 hdop f76 s2-b2qsh6rc ( mdtb(tave 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 defined as b m7pclq1ud feqn3)/wc/z1a8

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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 its separate protons and neutrons, the total m-5fy 9*bd0 / lg7umbt p8q dlpja5tm5mass of a stable nucleus- 7uql pba*5mfpd 8t d0gb5/9yl5mmtj 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 nuclerz7bq6m 2jn5 szii ;a8us, energy 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 nuclewd 3hmaz p0,1-o:sakxus 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 perp3lfb m k,y x862q(j n+ +hbncrk+yo)g 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 p/xddh 1xb03 pyer nucleon

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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 is falsel u bv1 l4;n9*sf; urb34qpkaez:l/be: jr yd+?

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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+ bp29p,ht snd protons in a nup 2p,dnhb9s+ tcleus 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 penetr+qt q1v.auq4i6m f5sl 9.f amqate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetri4l 9df nq 5m6;nwydj.ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penete;daapt9 7d gz4 vn*;drate

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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 apqogk ; 08hjw-dv-9 ris

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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 nv7sg i+ e2u6ceosjrz(t :+v, 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 attractepd/zkmf3e u, 6d 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 ao3ncjmuab :s7v*0eg5t+k h 9zn atomic mass 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 eu8focyuan *e2p +mv0)mitted from an unstable nucleus, the atomic mass number of the nucleu0vye* 2 ou n)8p+mfacus

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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 n*ydu 9bz,5*q i ;teunnumber of the nu,*nu; 9q dy5nzeb* iutcleus

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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 931.5 represgldiz ,i9p v5vaj r-of4;);lients

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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 s5n70z*d j5 kowt eids,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 unstabl osgp0d/42wx qe 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 mass?dyv k0pf q::g4 fit91w

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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 f;x8g *ls r vzgjrh.9 nw3,(pa) ujsu.in addition to electric charg ,lzjg.a8*9nw;ss3 urjrh (f pvg).ux e, 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-lifey9ck5ss g,eb*i dk:/mwi z89z of a 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 p;9j(.un z 9rgfmru-a zpu1p45z5 ixyis often used. This nucleus emits a single beta pa;u -a ipp5xf uj( zpy1u9nm rg94zz.r5rticle 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 magnetic field p9f wdolc*fa ol/ +x*z at.0)tto 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 t2y glg3acp4nn;v1k z( hat 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 replaced by bubble chane2ou8r,a1 ttmbers 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 hasm1 s8r x;nlze 3w)zy;z how many protons?wz r;zm;nse38yz l) x1

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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 how many neut,x7uj 4z79totb 4jkd j9g8bbirons?b84zjb9dj t97guboj ,txki4 7

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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 20 and 39, res ol56q7g;mwl apectively. How mamwa ;gq 5lol76ny nucleons are in 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 forq +eabj1h ;/au:98sxt uxywb* calcium 39 are 20 and 39, respectively. How many electrons 9 *ajx1w+uxbsq/u;: ethb8 a yare 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 ay,8-* uc;kdet w-mb;xx yu y-ynd 39, respectively. How many protons-xk- u; tw y*xmyyeb-c8ud,y ; are 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 calciu)dz,xi/ibn 5b m 39 are 20 and 39, respectively. How many neutrons/, bib)5 dizxn 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 numberyan(t ,vi 7qo; of protons, 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 therempj(2to2 w .9xkjw0v e in the 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 an :h1(mb9zb i+ 8apvmxy 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 energyms:zeuayqxhu6u5bif0+v 5 1+h cb2g 6 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 required to redx:b+c8u h rs049vjrlmove 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 alp)e eu eb+k2j,iha decay. Its atomic number is noej)+b,2iek ue w

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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 alp0pnp8g *jx.qtwvf.llppj44 * ha decay, what are the numbg0j.lpxt .*vw4pnpp8*f 4 qjl 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 2-v fb 1glihx3f(0r gddecay. How much energy (in MeV) is released3gbfdh rlxf-2 1g (0iv if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass 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 n;kf)+q-s cz( xoru6bnv165xkk s) a(g x8x dvuumber 6 undergoes $b-$ 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 is 45 years, how much will be left af n a/4xn hw1lom)pli,e zak*p67 +cmq8ter 100 year*4 m7zqakla+l o8w hnn1 )p6e ,cpxim/s?

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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 :ngq 7ol2-d lkif its half-life is 247l7go2 kqdl-: n years?

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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 ceulwv j8,0ajnw ij+9s w(umd2q0 4p0i artified at $10 \; \mu Ci$ 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 vv0/+wpc s-mj min. What fraction of the sample is left avwm -j0v +ps/cfter 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 radioacj . tqf)9gja4 7mwvvu+tive iodine-137 is 8.0 days. How many iodine nuclei are necessarym4)j 9 j+vtwg7.qavf u 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 da 6(,h7b-p)o pon ymkpbh1v9iw ys has an initial activity of oymp -ownhpiv 1kb9 ,(h7b6p)$0.24 \; Ci$. 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 carbon-14 measu(-zsbw dwqj:klf t+0c 1x 0;iared 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, a beta emiftj;q(- wlzws+x kd10c0 ab: itter, 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 take2z wdfi z24u,4l.pmb9s/js se $4.0 \times 10^{20} \; atoms$ 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(p/w 3wqw/t+ r9aefq te 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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总分:71分 及格:42.6分 时间:不限时
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