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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 parti7qq bo.b 1n:cwnm:iye*a+h (j cles 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 iq c,s m4to:vm )z 1eg*imtz97ds

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus c8nv- jid.n0c donsists 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 me vt9gw8 n9, mp/lrdm.e3)pnua c a gu0i09n3the 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 z(n y*b4v(ovpnumber 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 giw+mqb6( gfpa :ven by Z, its atomic mass by A, and its neutron number by 6fbmg:w +a qp(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 unst2b.95tj fcg8e gzrh6eable nucleus, the atomic mass number of the nuc h5b. r2f9zgecge8t6jleus

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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 a iy.q zyy4 1b2c0e 0skt+uc2mitom 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 stable nuclet nxpl-o s-+br;i(g6x7af; e lus 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 qhh(s 9ycq 4hc(j72hv 5ipk n0atomic number but with different numbers of neutrons are referre70 (ykqvq jnh 2is4pchh( 5c9hd 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 h 7go(oy6/mq xmave 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 -+z)x6or,q6q t cv bryis 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 separate protons and neey(chx( z7w f6utrons, the total mass of a stxcehfw yz( 7(6able 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 nucle mm7 o)n,*-eqh ew1 vd14+r wr;opreolus, 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,bwv ) uy7-t*j0sv2sh rxjn.i 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 p(s8( enk y.qdter 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( e0jo 49ady)z 8mf8 a:oaywfneon

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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 con 459jeaw 0,kum1ol awi/ y8uw co48kqhcerning 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 electrosta86z)*,xp+.jkfpl f ;bv rgpfb( ql bl;tic force, the nuclear force between adjacent protons in a nuc8;pb )6*;zb kqpf ,vrp xfl+f(gjl. lbleus 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 penetratyg,uc) g 8nt-vc cc;p *s*+)ngii 8)wndih i*he

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratebc) fv73g(igh. f5fpa0dn- ob

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrc p42bthrtd8 1ate

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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 know3o wqsqyvohe* /1( hv2n 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 kq d4t7: slc)o wcy;uy3nown 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 at1e10pucnx9 4+dezy z ci(,hnstracted 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 masgq *2l akxikke2x5:n /s 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 emittez5et4, :s yi jasq8rq0f to:i*d from an unstable nucleus, the atomic mass number: j8oyte:iq s,rfai5qzt* 0s4 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 atomi rk*3llmfq-ez3js;mn,l q l46 c number of thm*r l-,63lq;fqm kn eljl4s3ze 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 represencm7g aa+7huasxl04 ( 8 /yssdats

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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 moso r:w2t;nvq6pt 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 emitem)qt47lkq x 8 eh :uf-x1h9suted 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 moht hs4t2m2gi 9st 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 conserved5f dbue.n/yd . in addition to electric charge, energy /yedud bf..n5, 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-life7xr6)-;e;qrx:g qhfh u1ylti of a radioactive 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 nucleus emits a siy.hshb7e j(sc. ia0/;lshlysz 1sa*d o p 7*)wngle beta particle when )*.dszip(casj/1oylhla sw.;hh* ssey70 7bit 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 pa 7iviz g ma oy+ g+7*+z2::caaelmss:erticles 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 ajrs2 y g 61xettcr4-em*jg,7x

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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 0z wn4pi7 tu0-0j:xst /qntyireplaced 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 a5t* ;k:u*mzj p5fxmgnumber of 14 and atomic number 6 has how many protons?kg*;fxj a5pzu: 5* tmm

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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 how xs87v5hd( jk pmany neutronss7dj kh8p(vx5 ?

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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 6fwh +wgzi q8fe-:m6jand 39, respectively. How many nucleons are in q6f:gmhj -f e+w i6zw8one 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.;q4 smmwy 2;d0rn kl5d How many electrom dy4lkm5;n s2dw0q;rns 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 3uglpn)h0ljo6 7qf 5-0 ufj,ak9, respectively. How many protons are il6 unu7,)0j lqffkgoa 05p -hjn 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 ara ,vpfvulw 4:1e 20 and 39, respectively. How many neutrons are in one atom?f1 ,avwvlu:4p

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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, o3er yq; +):wem.e:;semb rnmthe 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 zzwsy y38m6m2mz; 4ctin 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 ofhdzn)4xpb c/4 i83abw 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 energ6rgdjwb vb.hv;b +1p;y 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 to remove on 6zqmeqf-do: k,ct49yd v 76xwe 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 al )2rcxp,k4fist9qxy r7cz -*g pha decay. Its atomic number is notx* fgc92p4y )rzcx k 7sir-,qw

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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 alpha decay, what are jgh0ovyp9l kho;4 +9bthe number of protons and neutrons,vogbpj h;94 hlk0+ 9oy 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 decay. How much xolfan9g,vow /) -xf+energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and n)l,no+ vo-gx f/f xa9witrogen-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 atomic5()h4pdhiea* g vrsc7iui ynqu+96 l* 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 material is 45 years, how much wilk ntdq:1i i 96h3cw,syl be left after 100 years?6ni shwd t1k9 ,:ciyq3

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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 probabilitf;1qhi5ca g 0u9/r 5p;:psaq zdpom)ry that an atom will decay this year if its half-life is 247 years 5c; :)paqqrim ppo5zr10s/ ;ah9gfud?

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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 cert r)q 7a+./ang8zlpx8fku( b kmified 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 t*m6z f .8udxcsf w2s p.js//kz4hwq3 half-life of 10 min. What fraction of the sample is left after 40 xh4st6wf/8d2zmcu s *3q/zjp.w kfs.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 5i izn x(w12nsivtsy4x/d ,f0many iodine nuclei are necessary to producx1v,s 0twxifnd /s4 5niz 2iy(e 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-life of 3.0 days has an iniav5wcuxc:v74 ; y;kq wtial activity of ;c:u5;vqaw4 kycxv7w$0.24 \; Ci$. 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 a-0bdbzox/l l*2sy. ayn ancient l0 bdzlo*2 /x-abys.yburial 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 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 3 /qpkwrx/wc6 b-w,hx$4.0 \times 10^{20} \; atoms$ 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 takecx pi9 pio//l+r:6zf vmqf0vmp5;j e) 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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