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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 ljrr+o2v0z5 hxt+ d4tzeast 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 iskcfo4v v)r j* :au/hv)s0oxh/

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conskk0c+t +lj;ppg.d5 npists 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 r( 4jw cpl,y.athe 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 the numbv ssnyp xz7 rn9(gs41/er 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, andv e17k0t afa-oe( gm1d its neutron number by N, which of thgkmo17t fa-adv1 ee(0e 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 unstcn2iw,vv lp6b5,-f.tkz 4jyz able nucleus, the atomic mass number of the ,z tyw.k5-zv 2filnbp,4v6cjnucleus

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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 *+.rsto) 3 a0rl:b9gooeiqjw 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 s+9khqmu vu4;qtable 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 numoi: gwh rxc-;n uz3+p,ber but with different numbers of neutrons are referred to,i:o3-phunzx+ rgc w; 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 *+5(fgd a2awk57l1rc 5d ar)ecyfvy ill-u: r have 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 definedil8b(xu3ew y0.-8c.vsch w qz 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, th uy22*sk mjpmkxor08 / cc56fue total mass of a s * 2f0mu65o uykx/82mkr jccpstable 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 fov0ptx6 u( en4lrm a stable 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 contribu6a/mtsd hm: xs98wz+m8h uh) ited 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 i+ (h, d/trcsqg, embz*q(8azb s

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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 nucle4hj8a3x9q, ikm1boed on

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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 nu r* e/wxe rkuy1eg) d-j04cu4lclear 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 adjacer2objo6,yr 0z nt protons in a nucleus z,b2yjo ro06r 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 penetrat 70kcjeg4ajkh)e ; uie*tss0 mn,0qp0e

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrz t(dyi)+ -(fndhf/jo 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 penetratepf6z b 6yz;8c r:ahy5skt1n,y

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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 4qp9, b 541b9fpz/k- pcdx-zi bhrfni 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 knowncvn pvn425tag/ ml o31 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 to kpb 6t h+2u2gta

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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 .uxk7jb;6n trxp jh,y hj2 44bequal 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 emittcwon f v6bm j2y2due7t p45ds11.dr5ped from an unstable nucleus, the atomic mass number of the bnt5.215m p1csf6d v edrd42jowp7 uynucleus

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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 nuc3 b5o7uh:tml. 9guotr leus, the atomic number of the nuclerblooh3.mg u t9:7t5u us

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - vkn.jl2qpo2 ye2;: +gl d5kl ajp)5 kmMY - 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 iar 1ml. q)h cy4y*t*x+ e,tqrus 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 from an unstable nucleew1l(wo b k,1wlipp (+us,

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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 mashvvc)s6w go s) l-kd7(s?

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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, nb8k6 lw roc- cflhqc;8m.f5 decay, what value is conserved in addition to electric charge, energy, and moment cn. w ff86bl;lcqk5m,-or c8hum?

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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 ra;f)ydlpa,yww- *n6kt;,cdhdfx7 x l -dioactive 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 is often used. This nucleeic(7g, fc5hsus emits a single beta particle when it decays. When this hapf(igh, 5s c7cepens, 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 mag2x q2rh /cx+/w+ccfw xnetic 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 uses liquid hydrogenm(uo+6 v8+hkr dysu e/ 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 cha0 yyo3y15ljgt 11yyft mbers 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 5o ain88f8hoaatomic number 6 has how many proton88ohoa8 nf i5as?

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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 numbd )9-6 m)- veh)br-que bak+ryw+wdk der 6 has how many neutro dkv w-6-+uwee drka))h+ 9mrb b-)ydqns?

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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 gz2u9b (iid7s* r,p qnare 20 and 39, respectively. How manyinuzr29g(bdsq 7i*p , 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 for calcium 39 are 20 ad ob/9nl0 a.s 2kcy/nwnd 39, respectively. Hw/0sdna /clon ky.9 2bow 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, respectively.:.vqwkcfzq(, zc 64fk How manyfw .z:qcvk q4f(,zc k6 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 arek8m/nisr,1 a c 20 and 39, respectively. How many m8is1knrc a /,neutrons 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 number of p.wd+ gl ys7d2ejcs3 hktg2q:zf 8q7(srotons, 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 . vwvxsx* 24i *x(sfdz 0yer.rcarbon-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 of m hf*jeoec4:sh) -a0al*uku6t ass 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 4rkn2 /q,k,lzduj3rg energy 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 requm y8b(b 5l-zo:wit3v bired 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 .6w6 *8z8laroqcf+va1phcx6ttgjt - decay. Its atomic number is n6 +afo61wc 6tgrvxh.t q8 -t*capjl8 zow

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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 protonohfmxm8 +h)e 2s and 249 nucleons. If it undergoes alpha decay, what are the number o8 fm2x+mh heo)f 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:wf zb,xwy -lzmntgh i, o);27 decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.0 fx;iozw,2m ,wg:)h tynz7lb- 03242 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 number 6 unde )hd 1kdhxxo zps)7-v9rgoes $b-$ 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 aieu3k (.gyo-1,hzfn 1 h *ldrx material is 45 years, how much will be left after 100 yearl ox1 e3uf1nz i*hy.,h- gdrk(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 4wx8yc 8cou:tak v)sp3 5i5kf this year if its half-life is 247 years?8ykpsc t4 ua8xovfk)ic5:3w5

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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 certifiep-, gau 2 p3dnbhs6.l)nbwm 0qd 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 min. What fraction of the samplfh yj-t*1ob c/e is left after j/hbc1fyto-* 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 iodia.zgs yb-fen fstg7(0pjtf( dg,e 69)ne nuclei are necessary to n,j7)tpsa beg 6s g0z.y9dfteg-( (ffproduce 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 whi zy ir7*s7;fjhodij5+v:* esc ot3m .z+s.nith a half-life of 3.0 days has an initial activity of 3o+.isso7emzdryjc5fv**n7sht: ;i j +.ihz $0.24 \; Ci$. 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 in6ivoxknvyhke ( :0-k*0bf) 8,y ocyob a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas tok hv(),fvkic0:0o o y6ebn b8x*ky y-he 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 take ofj3 o-f rqdth76)j-uyt e2b.$4.0 \times 10^{20} \; atoms$ 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 taked z;rgp8d7sd 1 we9qkz;ghy .* 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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