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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 particles has tetb xz5ufpr44 4ar 9b;he 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 1*:t js fgw(l8ip9pepis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus bd;/ sfukszm imiq( 7s(r:d) n1jr7yyd s 4j-6consists 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 byv5 b kq8f3tn1c 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 numbero vy o9ra5+ p)wu2ryd: is 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 atob4f4tqwd3f)u ypm)gkz (t0j2mic mass by A, and its neutron number by N, wmzfdbpyq uj)3wk04 gft t4)2(hich 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 nucleus, the atomic mass nk(p0d2, jf n,g/xnbu ;xpx d7eumber of th,fpjx,0 pg2(7uxne/k;dnb x de 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)v- pb-.f yudj 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 th 9ah5aevt/5gt8poo b +e size 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 neutrons arepz5b hw ;g zweb4*oz6ry5-xa+ ref+p5zo hzg -w6e 5ywarx;4z bb*erred 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 nuclei with hqlmf+jhf3m,ddu,1 6mw/gi8

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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 dw g)w1nt9xgpuc: mx51 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 its separate protons and neutrons, the total mass of a w93ru/ 2 zk r/t5oykos*s;da5xdm/c a stable nucleuruzr/m9 t5k3x*;d as s//koy wc2 5aods 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 stablekuoz zr6;f5dfm0+ox; m fch(9 nucleus, 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 nuclekoxq87:h3 b 1bae ,xmyq*hwr1us 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 pelav) (wrr eu tx35j01gr 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+* /9 thpeagoj60jdlzn

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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 conc2c9 idaxkv ;l3t/ir/v6jmxd+ erning the nuclear force 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 adjack)16 s)wy 4svwki agwm5uwevpq;7-n.ent protons kpyw mv;wiw6 5a-uk7).wns 4es1) q vgin 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 penetratets1kn b4o ia 2(2vfj:z9hju d*

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra8kfc y*hf cp20sa;x)wte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate0p*ejs5xlk .p8ip p,z

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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 knos2 (9b8v5b gb mchnz)vwn 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 knowk1p ghx:d 5 5tim.e8gxpk8365qpai kkn 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 attractcfp9lnwe,y vguqoliz -56e vr+pw: 6g (/52ta ed 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 anma p)zrd o,wb ,r s;4)gz1*hny 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,j8:zqee 3 gpo is emitted from an unstable nucleus, the atomic mass number of the nuo8 gpe je:z3,qcleus

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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 epykiz3 vlzb*d+(.u0+ d q3jmkmitted from an unstable nucleus, the atomic number of the n+d (kqdz ubpvyzk3l.+ ijm *03ucleus

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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 repr1mpv2(ug7y)t mvh v/hr29p hpesents

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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 thoci25o+3s0mvtk d so46ziir5e same 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 nu c68l-+ js t,unpprgv0cleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has th0bwt;,c 6b xrme most 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 addition to:t9( (ptbjp lb electric charge, energy, and momentb9: jlpb( tpt(um?

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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 substayf6xdr,j+ p1 qyh2tt)nce 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. Thr :)cjs xpn5u:o.oseob:8w n2is nucleus emits a single beta partice: u)pbn.o 2rc w5:so xsoj:8nle 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 mat,zb0dm rbtdu9j oiz+44p 3w .gnetic 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 ughw(f*yb sb,17 hcuw7 ygi-c 0ses 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 rep,ulb0v/pr( t llaced 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 a f /8 u+fbqpc5sv vinb5,vo+.ktomic number 6 has how many protons+/b vq5n8ubps k +5 vc,fvofi.?

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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 141qz pq/s ar:elen8,+d and atomic number 6 has how many neutronsas l/:q zn1eq,+8e drp?

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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 f c-p,x;*z3v2gwsv m4w p;ug laor calcium 39 are 20 and 39, respectively. How many nucleongap;2 ;psm,vx*uvz4 -l3cw gws 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 for calcium 39 are 20 and 39,7a b964vf refq 8,(8opibmls j respectively. How many electrons are r46b,mbev89f (ilos qf pj7a8in 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 n-*oim7 piks+ 9imdock: n4)jxumber for calcium 39 are 20 and 39, respectively. How moi d-9kk pco)ix*+mm4sj7ni :any protons 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 calcium 39 are 2uw74a72m; tbssi vjy1bkw+:d a 8awm40 and 39, respectively. How many neutrons are in one atbsva1uby;8 w+tw4m2 ijm w7sa: 7kd4aom?

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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, and electrons is vybz:jsa zc9pv.,1 x241

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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 fhfk/wnw:h 6v-m-zj/there 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 isotope ofa o0z;qbi4fx-.* hue7w: mhezd((hbt 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 epkx59b z82f0zpev )yga 949 vmubwu 7vnergy 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 remove one proton frodmqf)7b,3 pjr m $^9Be$?

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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 iw;c0wby47ztt- d u l1w5-evv through alpha decay. Its atomic number is nicwb t1tyl weu54v dz-w7v0- ;ow

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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 undergen 7n ;u++ur2(ltlya 4neuo p8oes alpha decay, what are the number of protons andn uu rtny8+(l;l 7en42eo+ pua 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-1w3y1o2 qlwwg)4 nucleus by beta decay. How much energy () 1wqowgw2yl 3in MeV) is released 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*+pkfmpz -j6q number 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 1 y(mnxj4hgng4mzs(. after 100 yearsnx gmm4g. 4nh(z1(jsy?

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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 7.tk1nbr,ngf;rzz , /j;ddz l atom will decay this year if its half-life is 24rrn;t /z.dgl,,kd; b 1nzz7fj7 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 cepm7d7w*.(l vgkmk g*l,w ) tfzrtified 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 halfx q ns-(5ux)oq-life of 10 min. What fraction of the sample is leftqo)5 xn su(xq- after 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 iodine-137 is 8.0 days. How many iodine nuclei areq1-q2pr9slin8vc al3 +hg twy/xv; m* necessar;l-l9hti 2 /gqv*px83nqmvy rac sw1+y 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 actitttra:l uu0:9 /h l2stvity of rul9as:: u/lt0t2 h tt$0.24 \; Ci$. 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 measured in a piece of a wooden caskyyi67g 59 +vb3acn 9st1teudj et 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 betnb td 65jeg13y9a7s+civuyt9 a 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 takeqiv+yu9 e+uyro 71. +sh bq,vk $4.0 \times 10^{20} \; atoms$ 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 takbfx1i++yo i*d 8dws9 ne 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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