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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 the least j6doo4 vk*+azjc +ho v-1q d8umass?

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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 is bg42 ,b*rvynb ytl, /l)dzvhp* g*y2s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi)q rx 9 /vgdtyh- o2ps2h0o58tasgxi5dk0r ;usts 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 determivmc1+beg o5s1f/y7m hlq6dyo-48o+s; e eun oned 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 v-mjge4 y; w1wm7bm6,6m b mjrh btb90the 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 mass by A, and its nelhklodv1(( e5e) is)hutron number by N, which of 1lvh)sike(l(hde) 5 othe 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 anf74dg20jilu 6b/ f+go eyu+b v unstable nucleus, the atomic mass number of thvu+b2f/d6feg+ 0ibug l4yo j7e 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 atom i4xdcm:n *t ay5s

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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 becauwzb r0v**zg;r +u 4rftse 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 nucee*/waslcd6*z g) 6 bmbers of neutrons are referred to ae*ae6 )/dwgscbc z6l* s

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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 nucleis*jesneg0 r,8 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 definele2u9vulnnd,ja r :0r kl l.9,d 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 y/pnbe5 zx9,k mass of a stablebn /zk 9ey,xp5 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 qb1rvg.+ld9 7)wmqm ctg t:)cstable 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 nucleus is contribua6 +la. 8t2q atc7wvnwted 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 nao+v)ab 0 r31 wnp;s6dkhk 0kpucleon 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 p3mmcj7-u jp:wer 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 for 9*ptisr6k :ydce 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 -(qd m,fg)dz padjacent protons in a nuc,qd)dzfpg m (-leus 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 penet2a08h nz,6uwm y p rkiv (q/j1otkr8(ggtp;.vrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratjzodt/v 7*mi :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 penetro0l2*:ozl pce . hy0ftate

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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 als1ml3rjlc7 -va gzn30v o known 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 alnul1rynu4db:q4- ajrxc3+m5 8l y:i s

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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 attr* gbbpuif3 *)dacted 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 atomihbwo fd1 /b-7nc 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 emitted from an unstable nucleus08fy k, u5rtza7ypwb ;.y7ss(knb 7yr, the atomic mass number 57f s(0kp8yr.u tznbyayrbs,yk7w7;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 number/mf **. gbo queobr9cjkd ,8*r of tc9o.bg,/dmo*jr q bk* fer u*8he 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 - Ma) x 931j,20wjfg ybl 0,sm3j q.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 twk)b j:6h m(/l.w/sfj (vzvt whe 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 emittu5g4ceszj.r6 )r9w tved 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 mad w5rl2-5y/gndf v )etss?

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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 ;jq x*fpa0wk(- mdh 3)pw/:tsda g0 hzin addition to electric charge, energy, and momentu)hxgd*a/0ppawq 3; m(w:z-k d s0tf hjm?

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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 substan-8w ru+xe8rs hce 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. This nucleus emi wg2+p,idxck*ts a single beta pari,+ cpdkgx2* wticle 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 to curve charged / ds gm:hra(1bb u6sx0particles 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 hydrogenl3hpip i,a 12u 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 6 /rc4xu)gz *z)x) jkxpj f-crbeen replaced 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 bn-a6z,,bl yq and atomic number 6 has how many protonsybq ,,-n labz6?

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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 h:meo+ :(eomq mass number of 14 and atomic number 6 has how many neutron eq o:h:omem(+s?

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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 39hj. ht j+b7)r /vg,owe are 20 and 39, respectively. How many nucleons are in,7g w jvhe).b+jh otr/ 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, respectively/nig04norew cdju7 + kc/pn-1ea :bk:. How man/c 4 :d7kai+p1e k0 eunn-b:/r cjongwy 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, respectively.wl8urv l18 cd/vmz*:k How mancv d lwml ukr8v/:*18zy 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 calc;.,ka2q7 odjaks/g icwim70 wium 39 are 20 and 39, respectively. How many neutrons are in one atow,/k ga7; sd0.jqikci2 7 aowmm?

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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, thehx 16zhzh* os* number 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 there in the carbon-14 pzhgh;b,p+ )8 x ko3ltnucleus?

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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 1/my4tlase- lkrk/f : -5 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 3ss7r 6 iv(vap22qk7fm q/vladmi kt83l f0(lenergy 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 reqhc*fq8;st .c+. vtp sbuired 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 decay. Its atomic y-*fq7bgc1j fl:sm n )number is )1 lq ffg7:-*ns mycbjnow

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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 a9hv ws,vplw(( gh5o fzdv/9v1lpha decay, what are the number of protonp9(sw(fvhzg/wvo1 ld v5h ,v9s 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 nitra em84l eawy4+y-k2lmogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrog4 ly+ mkweya28 mla-4een-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 atomia p;0-xi qb2xsc 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 mater5 pkn *r6-pr yjcus- d kv1.vm*rvk+m,ial is 45 years, how much will be left after 100 year-cy,kj.p-6 kmr*n* 1+rprmsv5k d vu vs?

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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 5vk:0d q)8kwenijt, mthat an atom will decay this year if its half-life is 247 yearsed mk8v5q:)kj 0 t,niw?

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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 ab c:,voj u)5let $10 \; \mu Ci$ 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 hall98 y1q9pgqv t w8en)qf-life of 10 min. What fraction of the sample is left af9t1 yvq )pl8 8wqgqne9ter 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 +(z mhjz2i/*xv/ n/fvlj 9pbi iodine-137 is 8.0 days. How many iodine nuclei are necessary xlfi bz zmhj/i /(*+pj v/2nv9to 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 wivgcgy7s b z x/ ldu;*),es,9dxth a half-life of 3.0 days has an initial activity of s,97,sxx/dl) b;cdygzgu e v* $0.24 \; Ci$. 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 ihh/w:c 4pke8 xn a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a g4e:h hp8/x kwciven 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 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 tak+gt41 m )hr 0zravyf*ce $4.0 \times 10^{20} \; atoms$ 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 / pl g f./vatf)7d:uzia $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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