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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 parti3l)r8i4nbm 0 wqly4sxcles 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 is+37j ftzxy7ra,/vvhk) v1ln*tw uj9m

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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 6wh(() yptdbc 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 qpu1q l6xvyna 9ro :03by 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 bykvs tuk.5 mx1+ 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 neuf 3 2(hltsc 1mjpu)q:ctron nuu:flcc ph m)qt1js (23mber by N, which of the 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 unstable nucleus, the atomic mass nsh2:oj ckx0q;umber of the nqjk 0hxso2:;cucleus

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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 :6/oue :g6:or; le vnxe qn7aais

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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 sta3oob9 m7 5hwbmo0;cttble 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 numbeu6n wh/xu:t)dr but with different numbers of neutrons are referredh:nxt uw/)d6 u 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 rr ,pbli)h v8ulxnph)x j6)+(mh7k 3hhave 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 defin3yi.9dz 0dz msed 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 o3kf oez *nizd:*1z9 wnhw+6n qf a stdo3wnzqzf*i19nek zn6* wh:+ able 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 stable nucleus,7wsnk g7-,csm 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 nucleusqitbq9nda *xav7k9hd1r+8oq: h2q h7 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 ceeh3 25- -.bvrk06x csv9on xycfro.b,2h ve nucleon 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 nucl yq2itde/q.h 6eon

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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 statementj d7,n-p1kpap6aow 3p f0yeh.,v dq6hs concerning 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 adjawkff (l(dg0h/cent protons in a nuc lhg/fwk0(f(d 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 penetrabu0 mju h(itv7/ -n85souqh .pte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrateppai ,l, ;;iyi

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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 8 c;ib6ncffsr1;n4t oc yer2,bt;m+ orate

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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 a0t2mgjq ym.oah5r8sq 3tz;tmv:3v *gs

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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 knxy9xkgb2 z8mw-bqq( -own 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 attragzj uxx9 /smwd6l406zcted 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 atomic mass equal + 1h/lu(lgx*0c*.szp udcu ezto

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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 emit5vvk )ly / 4dsgtgtlb(a cl13:n2id h+ted from an unstable nucleus, the atomic mass number of the nu/vt1(2b3lt)4+g d lhvk5ycl ns:agid cleus

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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 isn 7;f;sp+at ogv n9ra2 emitted from an unstable nucleus, the atomic number of the nucleusng; 2povt +n9f;7rasa

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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 representx6ecpw: 9n +rts

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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 the same+0 ,fgllx hsk. 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 unstab, pk yz 1k/q/r5s ty2*r-cdxe:+j vfvdle 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 r.j5.4m b vd;agqgp+7n mxfh 2mass?

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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 radioactbwwh(mtikb c8+n;:h:y5 xt+t-pl g u(ive decay, what value is conserved in addition to elhgt(b cpw+m h lnt(x+-;5 :uwy 8:ibtkectric charge, energy, 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 a1 kub(ltsk,f( 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, carbhmuq9 w 6 txif fiqr841chz))p8th.r7 jci8-jon-14 is often used. This nucleus emits a single beta particle when it decays. When this94- .hru68)ich8im wfifqtqxt)zjr 18j h7cp 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 chargebc:b* .e5bn iczgn-q3 d 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 hydrogen is ajx298 q8 em:)l firhmp

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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 chah vca3 1p9e*8+elrni ymbers 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 num/7*0++x ( dt ozfrzqam -uzvc3fsvrs5ber of 14 and atomic number 6 has how many protons? ravmzz 0*svfx(z +7+c-s3quo/ 5tdf r

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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 numb0r6zz( wwe4yter of 14 and atomic number 6 has how many neutrons04wze(y 6rz wt?

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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 fo,yvqx*p7u xhv :8(elbqb)h *qr calcium 39 are 20 and 39, respectively. Howbq8*q,: qy7(ehh v) lup x*vxb many 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 *)2rbaszkw/og l*g0 lcf6 t,y 39 are 20 and 39, respectively. How many el kf/g ctwlzb o6r* 0)l,a2*gsyectrons 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 wwyuj p6n 4y(i6ga41fand 39, respectively. How w146nyw g ip uyf6j4a(many 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 num;88scq- uod + e+zkcsdber for calcium 39 are 20 and 39, respectively. How many nezo;+ks-c8 dud qe8c+s utrons 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, th )4pokq2u t1d9us+.xb baeqih:+qmf/e 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 carb)ih(3rt :-i* rtadmivon-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 massxqu6;r/ wq78i: vjtfb 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 energ*9 3d*gl ancv p-h6z5i.mjbpry 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 requirfxsirg3 ab3ix(/)y p87.ecv ced 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 througj3cm3 n 0y4jfvh alpha decay. Its atomic number is nf3m3y4j v0j ncow

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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. Ifqi fh86a+2k:3ch j zzu it undergoes alpha decay, what are the number of protons and neutrons, ra8 f chhziu6z2 k+:3jqespectively, 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 decay. How much eneomm sr3cgk gfq 130nn.l ka,32rgy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14n2aq, 0fs m3mgn.3 3kglc r1ko.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 u, a-xe0piz(gygnnsio: ,)gz3 ndergoes $b-$ 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 much will be left after 100 af5yze7p* :ygce,c0 b year feae*p:5b0 ccy,gy z7s?

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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 ha nj:y0bg gzap9/pti8 9w.v 4gllf-life is 247 y0g j:nt./ ba8ivpwp94 9lgzy gears?

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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 certified5xzz 1 *qsouifyq6;r /c 7cdj( 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 a1b 3i (mdlvoi2 5/v ds/fv2iao half-life of 10 min. What fraction of the sample is left after 40 2viii m5 3bf2a vd/vlo1s(d /omin?

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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 mautz2 ri3)7c skny iodine nuclei are necessary to prod ri)2kt3cs7 zuuce 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 halaitmsk2r8j++3ivj z 6 f-life of 3.0 days has an initial activity of ijt2k8 +rv36sm+a jiz$0.24 \; Ci$. 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 a piece of a wooden casket from 48st/ulsrbkj7j9b - van 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 emitte 97/8sb4 vb jkjltrus-r, 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 taxcm)dig,(9lze+ z r zg77m5swke $4.0 \times 10^{20} \; atoms$ 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 fq;jguc 0muhbq*- 31ca $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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