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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 hal*v ;ch g6pzr9s 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 is*iustj rg0 0c4

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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 q ij6i)tri05qof

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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 nn hh2c kv8fy2u3z2x*mp.te .g yfic36umber 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 60cvet darw:pm 1: )ntis 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 atomic mass by d ) .z5ujpk tn*7w27lj lh2zrg94hohtA, and its neutron number by N, which of the following is corr rnhzzlhu24.tdp7lko5 jt7jw)*hg 29ect?

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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 unstablecu: a;wqdc9s q2- fase m2xry40w)k b: nucleus, the atomic mass number of thewa2b ksc4s wu 2)aqr:fqydx-9 0 ;mc:e 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 k;jmcq(4p2svm 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 sd dhhi2 ..ikvr32ji:b )*+n 8(tjny yioys+vmize 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 b)o3rd mfid1urgv * :j.ut with different numbers of neutrons are ref :3 )gou*rri1md jvf.derred 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 w7 u 6b:jw x3cn(its8vzith

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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 defined/zm ri,*9 s2 c;iwe px:vvi-vi 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 protoojl - 3w(,ovobm,ek+ bns and neutrons, the total mass of a stable nucleus iwo jbkme( ,-lb,+o3ovs 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, 51mjdeysunfig3 tv( m)(to+ .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 nux+ 66di3y odk/knrg /ucleus 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 per nuci8m9 lj* i8d+g+oi9i+f m6p:sjye kcp leon 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 nuclx:il7ec. yxek2 b+vm8 )a)lfbeon

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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 concerniny0v k5h za/rn:g 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 protons f6)cy-fpte*cb bq1(fin a nuclq)bebp 1 tff-c yc*6(feus 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 penetxav)1m/uzvo( j( vnc5rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra7ajpvw5 jhcjn ukzo4l bp++ x+y,,;*f te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate4vf7s72cg itj.rkcdv rpk8ph6c 0.x 2

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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 f9fsj j /3z.,u f,ktvgknown 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 as ,bwb +i4y0r36m:d w:zrabyvy

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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 g(nyn5 hydb;4e5t xx 4ifu2 :lto 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 to iksoms6s5j p f.l/69o

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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, )8zuufna-n7359gu hot cpry3 the atomic mass number of the nuc ou7t8 353fcuhru)pgy - z9annleus

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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 ofb iim0125o ibs tms2b10ioi5 i bhe 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 931.5 represent hpc2d;vv+:jtxs/ anz *u0g4ls

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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 4 ea9.kqdd.8x n1h:2p0yx1 myio fx ) /emfmcvnearly 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 emiqlyud2 ,wowa p5v5)9gtted 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 jh(8*9c 9odz+*f)fusos b zitmass?

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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 dect1tyh*jy)1 i3a b-mmtay, what value is conserved in addition to electric charge, energy, and mometi1*m3ba- tty 1hmy) jntum?

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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 as 1g m7g*iov -h ;hf7 h lf9)8ac/qsnqwiit 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, carboca- ;d6hz+tj xlyq *k7n-14 is often used. This nucleus emits a single beta particle when it decaysz-6qjcd+ l*yt;x k7ha. 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 particles ig 0-*5g v7k3atul dduks 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/ fxhz:9 tb l6x+yb8re 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 rey qh1zq,45ljl4sc h)vplaced 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 w 8daypo2.k7:v qayu(of 14 and atomic number 6 has how many protonsov kau2(ywdpa7 q.:8y?

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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 numbel v+i e,9zp4l d1+dmvf6.nwl ar of 14 and atomic number 6 has how many neutron e9 dnai,p.l+ vvllf1 zwm46d+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 39 are 20 anq5sr) s + ujeol*s n+l11s3qopw2:nwvd 39, respectively. How many nucleons are in one qjpso s)qwl:sr5*+ n2s e3oluwvn +11atom?

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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, respectivel zi 2l)1h*mnp.w2y:p9 juc nsly. How many electrons are in one at j clp22*.snh9wi)umn:l1py zom?

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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 numb *po+pq 3y809o ijeokder for calcium 39 are 20 and 39, respectively. How many protons are in one 0+e pojoqid39 oypk*8atom?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number anddz-7djwtz2ktf;u4x*-h s+c o mass number for calcium 39 are 20 and 39, respectively. How many neutrons are in oneh- u7 o2tz- k tzjf;4wxs+*cdd 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 sv-* b5oscadyb- iq:9 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 tj i 4iwa-x40t . jg+3h9wliqtin 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 of3 c uwfec9* /u;s wq djmzaj+22cw(5pl 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 e nl vewi 71.froltl j(+af(+h;nergy 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 requi qx6 nyk)1v jt-z5g*ew :/etaired 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 lkk y3 w (,/kot3dh5pisyw+5halpha decay. Its atomic number is nowkhs35+ ,3wkyk5wt lpd(ho/i y

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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 *gzv +17whxx+6wpzi :it/oftit undergoes alpha decay, what are the number of protons and neutrons, respectively, 7xg*1o6+/v+:wzixz phf t twi 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 nucleu fb;gdx0lj5;/i7wb- /8:whmrrnf x tuui*op)s by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mas0 - j/x 8p /;ir:b5;fu7o*g uwbr)wxtihlnfmds 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 6mt;wppcx e zfz6,3wd8f+6q pp*+v5 l a 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 mater ob2z/;tb9b ,zj8sbw 0ubl hg1ial is 45 years, how much will be left after 100 year ,j;2gbz0bslzb9u1wh 8/tbbos?

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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 dec2 +9 fuz6 *zleq sx-:5li xshyhx1(gvsay this year if its half-life is 247 e ss hixsl9+hv*-2z561:f(xx zuylg qyears?

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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. aqz.an9ea ux3rni+s8 djhnz+3hse rm32x 84 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 o9rf mtepbt c.htib6*6rjfwus6 (/ j(c7z d94ef the sample is left after 40 /tfw9u* 4f6rthb zpj( ects6796mdbi.e (r jcmin?

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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.pwyu+3 qf d+ ;um6i 27c0 ejdt-tmwtv0 How many iodine nuclei are necessary to produce an actiudjtwt++qm 76 2iev-ydm cu3wp; 0f0tvity 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 da,(cft 9--x+xks.h(:te pwuattq z , glys has an initial activity of ste+ t-puht.k 9fatxz,l(xw qg,-( :c$0.24 \; Ci$. 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 a85g7e v0x *irmj-wnlj piece of a wooden casket from an ancient burial s7*5nl -vj80jex rm iwgite 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 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 tak1ymr7.mu:fuvn8p0 n re $4.0 \times 10^{20} \; atoms$ 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 a ln01 ,+j0enzd jjd3oe$4.5 \; Ci$ 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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