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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 par9pn3w gb x rrt/1c+j r,yvv2f1ticles 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 isx0 ha1qw- 4t(z qqs-fx

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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 ofsg;k5uk.w -go

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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 yeyi)3u t;6cs2m b95*vn npuxis determined 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 5oi pv(ker25s 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 given by Z, its atomic mass by A, and its ne wwvzg/+z9, djutron number z9 +gjzwwv,/dby 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 atomi* vnhsgzt.b;kpe 5z9p , 6fob8c mass number of the nucleut9.kf 6ov pbg *,n ep5;zsb8zhs

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protonmgop4r klt8wa ,)iqfv (174e. bkfsn(*;xkaas 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 stable nucleus beyfj iemkon645; g+e/r cause 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 differtgbbbjp 2d;u/*+vd)k sl4 yr4ent numbers of neutrons are referred to ry2gj+ lkbb/tu4s )*vpd ;db4as

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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 nfsz9rt2glt)6ae8(m(wm h;qsg(p6 vq uclei 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 ny(*ay yap 25 9p6kqtjis 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 neu21q6e twgqszpm/ek 9( trons, the total mass of a stable nucleus is alwp ees zmt6qq/29(kg1ways

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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 nuclb3 xghbh6l1up* gre v/fu387feus, 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 contribut)x p tkw9y vnn-m7a37zed 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 n ts.yv r81ob9iucleon 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 nucleom*n2q* pd(ri sr4m8 jqaaw ef;0rg8- nn

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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 concerniip,bvexs9e;r k: rx l3m3ii +-ng 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 f q43f( cn2wvs8*w3l5vk lbmqcorce, the nuclear force between adjacent protons in a nucleulc* nqfb3vcwwl v4(s 32m58kqs 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 penetrat 4kjjow-g*26sguetya t+m/2 ye

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratt+q(yokp m;x td2/lahyw8a 4,e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetralfwnn r xh(71n)jc2d 0 yshudyg458e/te

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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 know xwj 8bmm km8tk+18l-op, s3znn 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 ky sl(fal35v 0e(b.1e0a5v 8bxb icu8z d* pajrnown 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 attracted tov+x.xspq l b,ieo/3e8qm v 01o 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 at8owq;s g 7vkc:vk+cf8omic 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 il 9)vb 0updk l-x o+f.oihw(2sin;ms5s emitted from an unstable nucleus, the atomic mass number of the nucleu;od(m-) ph. bws2x 95kusfo v ll0n+iis

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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 g4/zjwlfilnza )0 :z5.h ac(m nucleus, the atomic number of gw 4a5) azm/lhc: f0zl zn(j.ithe 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 94 mq:nkgwb p x ;:4)h3cb.qsey31.5 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 most nearly thewdg;0orbmh q1n.t36 l 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 from an unstable nuclee gdiwq/s39ah404c xsus,

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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 mu0rd ieprt 6,-ass?

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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 ph)bx 7o,p4ejwg7 (pe kjto .f)6/d uvradioactive decay, what value is conserved in addition to electric charge,ohpop6 )4 7)t p7 gx,keud(f j/.ewbvj 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 radioac134 q;t70pfqtkwyy gztive 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 avkuk;:5, qfkhnz t-4 often used. This nucleus emits a single beta particle when;zf:-v tukq nk5 ,hak4 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 magnetic field to cy6l9ui/a+qn3 fxia)9qf;efgb h 10b aurve 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 hydp9 xo/ung h0) f wmh9dk9jt*avt;b4/ grogen 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 bubble chamberscwnjb 9ene+t uktk ,(vn6j09w pt;4e( 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 oy* 7 layywo1q+f 14 and atomic number 6 has how many protonsq*yoy 17ly+aw ?

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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 2:4 3et7l4c)2c hq 5jbvwkb/zapycwgmany neutroh4bl:aw2c5y4kvw2g c/z 73qp) jetc bns?

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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 39ok hfaa4 jf*t- xulj74mu /03w are 20 and 39, respectively. How many nucleons are in one atomo4m t-xuk0 4au hfw3l7jfa*j/?

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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 207q*g+alypq 7-bl g y4i and 39, respectively. How many electrons are inay q4byl*7 i+gqgl-7p 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,m 7pq6nm bk6q. respectively. How manymq .66mpnqkb7 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 m:e)-b c*f qd)ndukwe- ass number for calcium 39 are 20 and 39, respectively. How many neutrons are bk)edc q nw:)u*f--de 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, w)snxbj, 9xaxf3mb8q. fr u/5the 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 7o;4hl1;. xjpbz .cq-yr nl wdin 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 of mass number r(m+.3rx wsuo :vtec0 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 ener4:ontlbh5dyop/ 9g , ygy 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 (ztnmf4 li,e /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 atobn (fgjj0 y+avw;*vl4mic number is nj;lba+ w*4 gjfn(0yvv ow

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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 nucl h 964czr ;atvo08ci3zot3jv dh48pymeons. If it undergoes alpha decay, what are the number of protons and neutrons, ;zc 9y3 8vh mi vzh3rdt44ojt08c 6oparespectively, 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 483c , gv .tguh n.rwfz6kr8jqenergy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a m.gqrgz t,cj.8u3 fv8h r4k6 wnass 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 0s rw3pl;eby7p4d,ft 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, bl le/7rx0w l:m6o 2cdhow much will be left after 100 years?/xmec d6:rwl l20o b7l

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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 half-lipk2p4 6 ad2jjnfe is 24pa2n dj4k62 jp7 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 was:2/ g u;wdraqu 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 fraction of the samzd 4l25.xs8hpt lud5cple is left after 4 8 hc5l4d5pltzs2xd.u0 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 iodinex hfm 4j9qde454wvxx*-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity 4d 95 qhjx e*44vfxwxmof $1.0 \; \mu Ci$?

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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 da.n -rzliskz/ yxsrx.;5bq e u3(v9i) qys has an initial activity of qii3sr .(k95l yz.ezsbx u v;)qr/n-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 meash bk.*pk m+ -jv; s5bnbscls*6ured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minuten *jsklp5m cbbh ;-kv6bs*s +. 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 tak/6fyasjc g(uygy*1 z 8e $4.0 \times 10^{20} \; atoms$ 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,0dp:v kt ht(s 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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