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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 particles has the least ma;insw + th-z3cn2 y:vbss?

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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 i8 qxbth9,ow erc4/ 1dds

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cons.zjqezj /yt+. ou0 dtrl:b*)yists 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 the num;77byz. 1b)tsqdo.u oy+bd 1t/lv.ypbdy a s5ber 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 istd0mz4ry7 ; e40:x bi) jxzijw 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 givenjfw e-,gpg:p - by Z, its atomic mass by A, and its neutron number by N, which ofg:f eg-,-pwp j 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 maw-3(c-zcw3jhb lwbtwu s sai(:5z*) ass number of the sb*zj s-(w:hb-azw3 5 lw)aci (tuwc3nucleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of proton+i,hib kp+vpt (4 dy:es in an atom 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 stablev6 7b g*lvqfq0 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 lgz umpb2- a )1yt6 31py8 huqjvo:u0lbut with different numbers of neutrons are referred tomhz6uyl1t2 :v38alpyq ob1gu ) 0p u-j 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 nucla0d z4ah*qyl .ei 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 define 5;,m*dh/qyp kewpj x,d 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 nep096 eb jfpmp*utrons, the total mass of a stable p*09jfmpbpe 6 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, energy ivi2mt z2 mk-3ms

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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 4zw8 tslaox)q( ,ht/s 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 nucleon isd-p-cm /pn. hboo xy/7

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy petvjxdhq,oul293 0-d+ n, k 7iarp 9rthuex7w9 r 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 concerf),f :3xd8 hkl)cphjrning 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 electrvb/ysl7 c., x*z 0mkncostatic force, the nuclear force between adjacent protons in a nk*v 7myc,b0/c xzl.n sucleus 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 penetraus4*5x jta8 +: vorb*o+uhczgte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr5v9)hw 7mi ou9 cnzl/y5hfz o5ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra7/ f,t2ziojxtv t.pn1te

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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 alsn c43.fmjckw ;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 w 27hc3/ni u8owz(nncknown 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 9ddqt 5n 6r*tiattracted 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 atom-;a 0ov q7yi19-amqvbnnegp 1 ic 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, thaw6qp v -m4e -0tzy6xre atomic mass number of tevayp66r-t0 m - xz4wqhe 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 emit f7,ylx7ouh /ated from an unstable nucleus, the atomic number of /7h7ylfxu, oa the 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 represe3/ gqueso0;-f, 4dt;n tqp sebnts

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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 asy0i+3diwz z1kzb1ii8 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 emittzp4 sb9y5m72of5qr j led 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 mostt)etsqp s;/o9 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 cob4 9tijjj34ym nserved in addition to electric chj449jyb3 i jmtarge, 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 as it 5er8 lg* rhu)98wk*yj 7y ddxjdecays?

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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 (f4n:sxb0i 4s d al8rwx*bm7nused. This nucleus emits a single beta particle whwl :0fr s( xb b7a4mn4d8nxs*ien it 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 magnet na(hgts h.;7b+hczz 4mbt-n5ic field to curve charged 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 g,7sw y+ntt zwdwz16c-amf: , 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 replac o oat2(q, )7dqgwkec9ed 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 and atomic numbevq u;bo(mb +1s5/wm jer 6 has how many proton 5;o/bmv+1juwms(b q es?

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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 many nek bm3uomq8(b 9gx/;cnutrou(q ;983k bx/gbm nocmns?

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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 anra tw*jtl0. t 8r y10eau0p7sre 20 and 39, respectively. How maep01ta *t0ntrl y7.usjr0w8a ny 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 39 are 20 an2k/xzetc/ a w c559wgkd 39, respectively. How mcw k/ze5wcagk2t9/ x5 any electrons 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 39, respectively h--b re;,li0tdqy-hjk( q,bt . How many prot,,lby-hdr qb et;h-iq(0 k-j tons 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 ,) qn(t;4chhflb,bmi 39, respectively. How many neutrons are in one ato,b () tc;li,nm4 hfbqhm?

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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 prb qqfiq.75k6c otons, 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 insec2 6e n8 oiauc.iay 67 oaunxjj-+08 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 iwm41 cmi+lt 4psotope 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 binding en*t(adwc5dd9d 8 lc.l4qjz j: cergy 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 requs/gwz iwran5e w7/:p8ired 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 atomicy6l( xa dxk )w(-9dg rvsut42s number is now(s)ltv2r6d9- xausd yg w4x(k

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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 proto tu1di1:.,iqsl8sgk bci,*b ins and 249 nucleons. If it undergoes alpha decay, what are th*gk,bu , iq81:csisd.t i bi1le number of protons and 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 a nitrogen-14 nucleus bu 8rgj fxb67tf98 dj+ly beta decay. How much energy (in MeV) is rr8fjt+x7u8fj d6b9 lgeleased 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 atom8+: 1 vhuyynteic 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 will be left after 10go .km gafb:d(8 )- znd aca175tp4lmw0 years.gaf)agzpm 1 (db :ado 7wl8-mnt45kc ?

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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 atomam-9 szd+mb;e will decay this year if its half-life is 247s+9ed-; zbam m years?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was4l rf z )v/,dljnss7:xpe9h qmn7 91tl 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 2:hme.wdf5 vxof 10 min. What fraction of the sample is left after 4ewf25:x d hv.m0 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 nh -t0eoaie 6 /xbgpt8+5ur2j.zo 4smauclei are necessary to pgj 2 imas.b6t rz+eu0- xp/at5oh8o4eroduce 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 3:smbss83e8 liqz iz34 vy1mhdays has an initial activity of ss3 lmyi i13b43h 88 szz:emqv$0.24 \; Ci$. 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 w:6gwrr.k+/ldax iq4 3h q9 wiiooden 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 carbon-14, a beta emitter, is 5730 years. Thus we would estimate the q 4ii :qar.6rxkh/i ww3+g9dlage 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 ip8+4a;q,ngpdp b* fb $4.0 \times 10^{20} \; atoms$ 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 x; oar3(gk6yscx 1 br0a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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