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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 has e-0m.xz i a3,0o ep2ma 9yu:0duxlbn vthe 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 fp60dcyg* rg (2;c6p0lukwz*xa n0ffws)m4b is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conyvi jo s,ux-(o8r(s 8jxz+: dqsists 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 deter2t/rp p-bdzz2 v2g2v bmined by 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 by the .9sv-k iw9 tyfnumber 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 nu ,zvg4x:-8 qiwe rl2mpmber is given by Z, its atomic mass by A, and its neutron number by N, which of the folx2, q8rz:-p lwgie 4vmlowing 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 fr9: jt;exrp c:rom an unstable nucleus, the atomic mass number of the exjctpr:9r ;: 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 atom i v*4 ueej k5f+ogint77s

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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 nucleus becw/ s 5mdr( a5(gfuf,0 cr8twseause 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 but with dif5 d6n f5kmto0qcbexq46j 9vu)ferent numbers of neutrons are referj5q 0cmdt 96q5o4u6kb x)enfv red 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 eleme)cs, ;blua t:h.g( ciix0mw /1 tbyhk;nt 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 defined as4xt 7f;)x1wpl6vb dekqw lj:;

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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 a,:l taifay z ilk/, 14mtvxs6v3kx3go ,;cq 4nnd neutrons, the total mass of a stable nucleus o/q v3ax6z,iks;klta144t 3v ngx,icl, :myf 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 foho 7i9e(hp/f6oot7au4e e bl6rm 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 nul-tfd .m(0r a ru:f:w*(p vrlxcleus 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 nuclexbpjtmu. 9 v(h ,ym:(ion 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 n:z8hkz: f4bzq ucleon

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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 for**mqqz momcp1d0u*s 1ce 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 forv 8pnw k6h68;vff9)jmac /jhgce between adjacent protons in a nucleacg vpjj;v /8ffnh6w kmh689)us 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 penetjzuk 8/b99cn,ror 2agrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr0cnivm79od ejf1ve2tdr8 fs.4k h5 9nate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetw oubb +v:r3*erate

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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 knoz(tih3* /yz9 + fwpxqlwn 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)3ro0 dy:66 sf jfuafr

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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 attracte x0,p qm:5ko(2q qkjkcr*sx.kd 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 7fafw l -yokl.z*gi ze:61d0h atomic 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 frq8 d.)wb0rt:jlqs v g k w(:(mdze)ou5om an unstable nucleus, the atomic mass number of the v5(beq rww.:(k u)ol :zts)0d q8gjdmnucleus

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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 unstao:.k nl*kmfj5zc5ikom.1 . wtble nucleus, the atomic number of the nuckw1kn5m j.okt.:5*f.liz mo c leus

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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 reprent2/gga 9w*w4h 0b mlmsents

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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 asffpoe+ph:*x xyo,wu4ti:5 ;j 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 ;hj ,0*m hlolks1i 6*( ruawe p:mybo.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 mos py brg+fd:3x3s(oiwxgw42-e55bvf r t 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 co mqrfkw* 45*v- jy4xfonserved in addition to el j5-*4rx4w* fkqfyv moectric 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 aszmy*)ykm ;)9 v1eombnimw:4a+bo p b * 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-145pfp22c9a *v0x ueax7hhy . zr is often used. This nucleus emits a single beta particle when it decays. z25vhxu 79ppe0fa.*c ahyxr2 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 is u+ lv melygr0k z;+ pk:+5uw,ou8g9tea

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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 liquixm xehgv9 s8f ix7+.+bd 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 repldh,c2d)4 rpzh aced 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 of 14 ansj c+,9prxx.k d atomic number 6 has how many protonxj,r 9psxc +.ks?

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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 manjuj a,6fs*xq3 y neutronsj f6*3 xauj,sq?

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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 and 39, respectively. :ttqr;)onop z : b a/fewd/1:c5by vg0How many nucleons are in one arqvtdzaopbg/f b :1n ce::ty 0w5o; /)tom?

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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 numbeg bpb0gc. 5n+y 41lekwr for calcium 39 are 20 and 39, respectively. How many electrons are in one ap + 1be 0kg.lbg5w4nyctom?

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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 20q c)w*9meh*cc;llt6y h6bqk5 and 39, respectively. How many pcbw cqlt)he* 9yk c6*6q;5lmhrotons 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 are 20 and 39, re56f5x)lkt lmf spectively. How m )6txkl55flf many 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, th o u1l+s4dw09 fvyitq8e 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 carbon-14 nucle.ki93cq 18 tzcw3xgww us?

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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 mass number w0 x05i stfa*on*vd).o0bsy e32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding ener wn9qw( sm7-dd5dj7mygy 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 requihx joka+- hkd4/, q2kpred 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 decay. Its atomic nod6 r5cnlm+:t umber is ndm5:+ tnl6 corow

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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 under ddmhfp xk/12n+ s+q6gko i nar1zx.8+goes alpha decay, what are the number of protons and1k8p1ga++q /h xrdnmsf6+ zkn2d.ox i 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 rawsji c p6l4z0 f+u8-a nitrogen-14 nucleus 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 mass of 14.pwluzr6a0ci4j+s -8f003074 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 undergoes*tl hua6t azk986xz0oq r46mm $b-$ 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 materia+n8m ncp1aw (xl is 45 years, how much will be left after 100 yearsw8m+(ap 1cxnn ?

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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 0q9 k x3tna )yqlhp 3wu)3g7hw c2ut(zyear if its half-life is 247 yearqu7taw 3wg23h zqy9n)x lutp(h0 kc)3s?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was2 mzjf;u2djb ,xbd u*2 certified 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 fracalsy4 2j e.2rq5d4ark6qfb)p tion of the sample is left after 6 reklq 5pf .syrb224aj4q)d a40 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 iodine nuclei ar hdccwyb .r +/uh ,b)3vi6,vfte necessary to producytd/,h,ui. 3 c)6vwvcbfhrb +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 bk3o:/e +wo cmzj ur5mc6(rc0hz8*xx 3.0 days has an initial activity of jozc h8cx o *ewbr3kc+/ z6m(ur05m x:$0.24 \; Ci$. 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 casketmneh9)*qzv 4 r 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-li4)q9rv en*hm zfe 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 ; ,dvixcd x1ovysv8;y8f ps3 .$4.0 \times 10^{20} \; atoms$ 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 *c9 holcn1uqb h5v;8u $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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