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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 ha7-y) :e dbrgcfp2gwd.s 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 isr9t j i5l8) b5bjhe6w :(p:mnviklf0e

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus con.48* rc*bljqcx t sz9asists 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 by the number ;uqzstm-h2 yt 345adb,le r 2rof

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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 the numbdf/4h:bquc1,a e;l*mv8 zmwfr 6i eh4er 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 gi/8pp6 h,js txpven by Z, its atomic mass by A, and its neutron number by N, which of the following is chjp ,p tp6xs8/orrect?

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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 number of xk.z2r ,0qasyo,*izx the szz.oir 0xky aqx2, *,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 in an ato tfwt a,vl9zr :uaw:n:z7:n f7m 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 puzwo4lq. cys963 l b2p5tp1mstable 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 num;afviht52(7i ebni3vl4 i c t r(.wr.xbers of neutrons are referreth.f(x itlcai( iv4w.n 7;e5 ibr2rv3d 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 nuc60 zlnwsd58y:f0mmi ylei 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 de 7;vlws02b 1xw2evm rgfined 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; wd0n+ ojl (+yhn0g cb.na4bk a stable nuclen j+ 0kby(ogcn+a40.lw bhnd;us 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, ene;to3gaypb+ .mo q jnwj+9a(gd su1v81rgy 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 nucleus is contribungi)ouyvux-w/ z) os 819qz5jted 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 nucleon f; xj 2 fykw1h0d/ri6lis

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy pe c7q )q)be,cc uctu/(wr 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 conce xtm0zt; cbc0a0-2d1xh ax:(xces.uhrning 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 adjacent;6i fyob0q9 tf protons in 6bitofq;9fy 0a 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 penetra)0 xrj acr0cr;te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr7 sf8,tli1a udx2a/v fate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet 5fa/y yi:cgn i32,lyjrate

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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 bkry6 xi)(+yd 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 knohc: ;p1bwv zbxb;qc/ 3wn 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 attracted tqj6qn pn9: y 0yvwoh:,5xv2gro 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 mass equal vbv+20m6ik 7g1ztpga.v j: 1rj*rjdo 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 fr.bwi/m oq4p,dom an unstable nucleus, the atomic mass number ofq m/ipdb.wo4, 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 zg/p f2b,,e sanucleus, the atomic number of the nuc,afz s,gep2/bleus

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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 -w 17pn.9,uyhgzp equ7n lii6 4u*bl0m 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 followih*el.g2 ggjek p3k 2n tp1p00mng is most nearly the 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 fube3c 0ne(1c: xpo gq;rom 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 mos+ek3,gf kx:pm : 7 ozwtb/lzl:t 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 radioac(9o*:1uk4wotx x0f2m almrpa tive decay, what value is conserved in addition to electric charge, energyuxoktf*m2 :px 09aorl1(w4am, 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 at0al gzy)opd6g h 1in (0*o+bdq8b(cc s 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. This nuc(g bkh z8 ;03eiqd(ztoleus emits a single beta particle when it decays. When this happens, the resulting (8h zzb o(q; 0dekg3itnucleus 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 to curve charged particles i e3:rdehmk rihjdc1e g:,k959s 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 tkzd 8vpj*k4x6 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 chambersot(04m54b08 .c wn fijgvvh-pdn8 r hw 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 nuhb 81odh hp5,e,(f anjmber of 14 and atomic number 6 has how many protonf 85pdjheao, hb(1n,h s?

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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 manyhzi0+:m -/x74*+3mll7s twinqbt7 gkxdrnw x neutrons4xr7 7xdm07t: n-3sikqli*ht l/ w b n+mw+zxg?

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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 y .54s0kjwj4p+d ulg icalcium 39 are 20 and 39, respectively. How many nucleons ared+ s04j5wpl4uki gyj. 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 anlr +-gpba1cc ,n 4q)5qzn:lxb d mass number for calcium 39 are 20 and 39, respectively. Hon n, xcll z1g4:q)rbp q+-bca5w many electrons 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 calcium 39 are 20 and 39, rez eo n;jcr4o/pi 5:zu.spectively. How many prn jruc e5oz:4./izp o;otons 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 rdwh4 et/+wb 4g (3vbzmass number for calcium 39 are 20 and 39, respectively. How many neutrons are 4dr ww4g ezbv(b3+t/h 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, afaj2/t( :gf:-ne nxkg-l/bjq nd 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 carbonu3+lbnp8 oh n0-14 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 :*mcba 29n5 mcd-0gomnbqt.( n* riws 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 energj;8(h2w 7quabzfsd bp2t: v b3y 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 reqc z+io- w4(xkf: 0hompx8i,touired 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 99-nuh0e ehrm+nd3 ly 88 goes through alpha decay. Its atomic number is n09 m+nh9n hyrdlue- e3ow

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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 b )c9ex( zzx se7l0px2alpha decay, what are the 20s zlce9 7 ex(bpxzx)number 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 jd 6 :zfc696b0uezcmabeta decay. How much energy (in MeV) i6daju0 zc ef6c :zm6b9s 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 nuw6xtj m(p/ zpd fbr, 6)e6-iuimber 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,g8h) aca b v5j1f8uqufkx 6f+ww/ ,vi much will be left after 100 years?)u bqv68wj5f/g+,af ,1u xkc8w vfhia

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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 w k 4ewfpms)o3; k0y53s;vkbe247 years?5ep4)3mkvekw;ys 3o swk f0 b;

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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 cert-h3wgmj o1jochmwnh+, g c;(y3 ;xd7 2o mxl8vified 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.3w4abt5hi yr dej0t.01bc)tfmqi 4g a half-life of 10 min. What fraction of the sample is left after 40 mini bi)m.e d 040 q34tawt1yjhfrbgt5. c?

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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 iod c-mhjtt-:k 5(op*fajine nuclei are necessary to produ mjho: c-(5p t-*tkafjce 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 with9- qm -h3d aqevt3p+og a half-life of 3.0 days has an initial activity of - p+q9mg-d3ovh3q ate$0.24 \; Ci$. 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 measud5joe6a 2 lmou3ru),g6 b9ntdred 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 emitter, is 5730 years. Thus we would estimate the age ofroteb3jaongud6) ,d2l u965m 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 takepkw x/vv 81n6g $4.0 \times 10^{20} \; atoms$ 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 a9nmwmli- vm4 0 $4.5 \; Ci$ 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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