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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 has taivus ct/:/k+ he 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 i v:q.3ts 0szhqib**do s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consilkjfvh6j6 yy6 fui9 6,sts 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 to)y3p g+vmk1rq 9 7latfis8+whe 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 q0 w cym0(*lua 4d)pundetermined 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 givew:i f z0yvhw xd.s12k7n by Z, its atomic mass by A, and its neutron numb:.yi fs v7zkh 20xww1der 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 mi :ysu9 8hq.ecass number of thc 8.qi:h 9suyee 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 a g12y0b+vehz 2naswwp6- mb*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 zz0eb, t 7mhff*p*lp3 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 but with different numbers of neut lry7 * ;ytvfy0 i1z,ira+6noxrons are referred to , yyry*+1 z7otanrx;6iil 0v fas

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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 withc/- a,2;gu fjqlsl9y d

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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 isf0+o sz1mkhv- 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 neutrons, the tor/ jv zbp dl.3xduu-p.3xe39 3j,ic) 7rbmjpdtal mass of a stable nue73 udl/.p 3rcbuvr3jdmj,dppbjx- 9.x 3 iz)cleus 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, ku6+1ctv5i/fzo yo/ y 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 contributed /)(yhaxt2 :sjmz1+x qwv7mh qto

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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 nucleonyz r/t/1dvx5h)9w,n8z 54jtqdgu qhvhrs6 b 2 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 nuc)b5,vmk +gwp cleon

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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 nucls(2icm i-yz7i ear 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 u ;x (jmsvvu;-fh 5g2g )gq-ltbetween adjacent protons in a nucleus i(;5u vsgjlmt -gf;2v)xhqgu- s

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetratvml(vu cpc z:,90g* ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr:r f39 5plg3dggso tf:ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr u asgglbxgzf0 ny g/:386g+9kagc*d;ate

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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 0i+n um:u ml;z1f )mvzknown 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 j-kn-i, dsaw, p;qs5ssd(:rp

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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 6 q.yu 5vrhlt-attracted 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 mte xtoy d(id9;. mmo04ass 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 apf2jkrmle c/nz0(f1 8x*cb0 is emitted from an unstable nucleus, the atomic mass number of the nucleu k*cnjbfm(a/2pfxlz 08e1 c r0s

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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 numb5arq jp4o xf((p /h+c4er wvz8er of +fr5ep(a 4r zv/8w(4jxq ochpthe 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 93p1)29lghlk+ cm sx. yg5d1hgk9,ckd i1.5 represents

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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 mostg5v2 n275zibgvrmpmz +o )4kvjo+(c x 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 emitted fr)yzjap;z7;*o 9 oag lnom 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 momrdj1fra2)abx un-3 *st 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 :v/;fvtwwsyw. kz-9x is conserved in addition to electric charge, energy, anyv-zfw9 xvswtkw/;:. d 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) dj12 xnh4c x i3lsn3ts;3nas 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 emit; qoo*sv-bz/as a single beta particle when it decays. oqbvs; -z a*/o 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 amrfvwv i54o1 : magnetic 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 ttrmv hx -iz *aq qz,osus q4:d6(vg3)q+ fq37khat 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 replaced by bt99,4w wvor rpubble 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 nu/zuas0-am,kc7 n rkj0mber 6 has how many protona/m,nrujc0 k-0a ksz 7s?

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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 numbertj j r7d:wf71l 6 has how many neutrons j1l :77trjfwd?

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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,w l /1hhdgipccbsn2- +0j-jv 4 respectively. How mlcnh+vhcw 4-10/sj2ij -dg pbany 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 an68lf,h/ /+fblm qhtm edgq/7t d 39, respectively. How many eleq86mg,dhf tl //+/l tm7qfhb ectrons 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.q8/to9en* ren Howq eo8nn* /ret9 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 number for calcium 39 are 20 a,hgxvd- 8d8hv nd 39, respectively. How many neutrons are in one ath8d-,v8d v hxgom?

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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 pi 9xl6vmpua 2 advk/ xcy/0*(xrotons, 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 aregspiz2wqex q 57mcn f7j2 94h* there in 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-tju x3/pnlpxrhwke4: t(60p an isotope 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 energy o t,sp*wr j9l9ef $^4He$.

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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 xt v2:+mfi,y5)u8p sj i+ta qmremove 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 number is t3ccjb a 8s**dm+sjj. j+bc*t ms 83*j. dacjsnow

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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. b6fg h;yf +lr/If it undergoes alpha decay, what are the number of protons and neutrbf6;/ +hr yfglons, 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 -5s6gyoxdqfm9 -6lrw beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitr- r9lq6d6o m-wxgfy s5ogen-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 atomic number 6 undergoes4 r mi2d-ec9 kjb+frf z)9m8l*x zd1fb $b-$ 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 yhpt:p np huu1y; pcs450q 2ye4,afx)pears, how much will be left after 100 years?qethp0u25 4na,h;pxsuy)pp 1 cf4yp:

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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 willjc5yn f-6xyst -9t8mf decay this year if its half-life is 247 yearsjxt6sym9t f yc-n8-f 5?

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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 af/(f aqd4mx;vu /6f vwt $10 \; \mu Ci$ 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 of thedo g ( e/6c(ey23wggln sample is left after 40 min(n2y(cgle g6g3od/ w e?

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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. H +a9h ppxa/qv2ow many iodine nuclei are axp9v+ h 2qpa/necessary to produce 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 initial -iz0ubm8v3z w activity of v mbz3i-w0zu 8$0.24 \; Ci$. 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 pie md wc4* inv:5m4jurr(ce of a wooden 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 age ofvnr :wm4ru c4*(djmi5 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 takej8vhc;hqtg drdr 98 /cu0,bh2 $4.0 \times 10^{20} \; atoms$ 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 tak-aekii/4 (gh/ xa)x 3(lhc1arir.s wdc z ,id8e 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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