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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 pvf *)y m1f+cv/; omcwqarticles 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 isv.w f,4/uzkho9q9a:sq8 bmfh

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists o iieu29*o yt,zf

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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 num11i)abqewsla agg+ , b;;;dx aec7l4cber 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 bafn rmd;zq.ortl*xw9r ; r( /+y 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 atomic mass by A, and its ybpn; ea4+r 5n9z69pc-jycwl neutron number by N, which of the 49yj6;lb9-pa zwnce5+prc ynfollowing 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 a7ls jrhst;ml7;: jpb,tomic mass number of the n:jljl7 7 hb,s;m; srtpucleus

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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*g)/6bm4) dp zkjg:eh 8xuqct4hx-gxm 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 sizeo4ia/-v,zl m6 in2do m 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 kn+iq1:tyk, yg mh74izct/ . anumber but with different numbers of neutrons are referrey7tzc+ ktn ,/m4kg h1.iiqy:ad 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 nucle 4sj6,.s ddu-j 8lgzzbi 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 iy4re )wrmmcs 4u.)gs3s defined 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 separae 41igrpg5 m1a xzwki+. 3dyy8te protons and neutrons, the total mass of a staxdr8 ziwa+ gyg 4m1.e3k51iy pble 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 stax2itz84m7 xxj6 c, aifble 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 congj 5m;njk)rkn+dgl0 ,k q)z0m tributed 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 n/jqr;0m d vf mgcc;+2yucleon 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 peh ulgzcsnz.tlo 8 83+0r 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 i /qg o ilorujxz,fek7mw-a)j4w572 c* s 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 forcqcpby f9 7(h*ge, the nuclear force between adjacent protons in *9qy7c h(pgb fa 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 penetrarma*): v+ugew 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 penetratiq:2(u0:w p 6sxdu5)n: c9czb svchq5i* yg fee

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetru 5y84n+4 mpljlcd7 icate

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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 alssx8. qx*zd0dxum /b(h uk*um;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 a+n.nr. h9pq2mvf ;( 6jwjl/xng oet(w 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 wilgj3tg,.oq d* ux pzk9bzh 4e90l be attracted 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 atomicu 9uzz3sdy. ( 6bq:jpc 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 nucleus, ne9)d6 rdlfq hv-(pa.x+r8i ethe atomic mass number of the nucleus vndfr-8h. (6d+ax ie9qre)lp

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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 is9*p,s xolrxr-in q*;p emitted from an unstable nucleus, the atomic number of th rqp *-x*rn,l;p9soixe 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 5(infl:tua6wrb2 pht(3 eoc6931.5 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 thep0 avcki;(g s9 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 nu7c m62boix9usf 4 +yctcsk o+/cleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has t jy0xz)l*k1 gfsi,; kkhe 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 tomloqkuo, .z ue85z7/c electric charge, energy,8kozu e/,cl5um q7.zo 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 su,7xv v- kw;tw l6cgao6bstance 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 use4 )r0k0a68no ixo.q jxwfw m)x;ax4sjd. This nucleus emits a single beta particle when it decays. When this happens, the resulting nucl408jxrq )4x0w). o a;s6wifaojxxkmn eus 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 7z0y-,chvj/*pi2 cgif*j eqbcku l+; 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 hydrogez9ktp2vy*jd(;a5xx +yqy xb 9n 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 chambers be wm*u5tfr.6ovcause

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomihftfb/ a- d bjt7:) qt z .b;qgsx1rfi6ov2+y/c mass number of 14 and atomic number 6 has how many protons?gaj t1z7yb+f f/d)r h bt 2i;-sqoqx:b./6 fvt

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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 ho9. 9h1liby wogue ub;15o)nemw many neutrons?9;5uw yo19m )ln.hugobieeb1

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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 io m9gstd(w/; calcium 39 are 20 and 39, respectively. How many nucleont(sm9o;/dwgi s 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 2 bn(jvl9ldv**0 and 39, respectively. How many electrons are in one atombvjl*v nl *9d(?

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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, /d3lmz*q1 ,mbh1bmw6rv 5 itj respectively. How many protons areb3bl 1miqdmm 61jz5/* rh,twv 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 calcy)2pv*,iw-dzu mr q 51uaw z0 lb1b)fiium 39 are 20 and 39, respectively. How many neutr1*apzlb vzqr2dw)1 m-i b5yuf iu,0w )ons 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 protons, neutrons, and electronsho1. v21gaiz ga0za) i 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 sq jxb+ll/u quv:,tv22)l f4m 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 15zvu ymp+m2 ar6k+ d0ow(*yqo* 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 bindingca58tb: d9r5; kjwcjf 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 required 9v*+svp 7ci idto 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. ul , gemfe; rm*-.cr3u Its atomic number is nowm.cur rl ;u-ge,ef *m3

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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 undergpa3va drb1/c9y4gb +goes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucleus? vbpg+1ar9agycdb4/ 3

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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 beh z-y .sdt6/znv13bv pta decay. How much energy (in MeV)s6 hv1z tvy.b/3dpn -z 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 n)0+m+eay ny rhumber 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 muchk o/*/r/tgfs * ;a(ritlir/w h will be left after 100 years?irksh/o / *rr(t /;w/iag lft*

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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 dmzpx1 1ek4o)6t ak/)qu dgd*an atom will decay this year if its half-life is 247 yearsm4d p)xko zg ded1kq/a1t )6*u?

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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 jo/hrm a8a 8i 0+2cwpsat $10 \; \mu Ci$ 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 10u; 0d,bxr lvz e;n+yr4 2g-urk min. What fraction of the sample is left after 40 minrr ;z+beu g;rl,xy2v-4d0k nu ?

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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 v/y1m 1xwf4zt )-jbqfav66o tnuclei are necz a)t -11x6qb yoft/jfv6mvw4essary 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(o0kp l heaeyfpp5p7f+ . l1h4-life of 3.0 days has an initial activity of hk p07hfylpa o(4+ 1l fpep5e.$0.24 \; Ci$. 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 carboiuycetuj+5g:l (z r1,4no)(az n5 ce en-14 measured 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 ca(e eyrue5nt:4cgjunocza( 1,lz5i)+ rbon-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 9r;oxld4ib 6otgbk g.u)el23$4.0 \times 10^{20} \; atoms$ 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 tak6wpt phyg fk+*o-c7ni b5,8u qe 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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