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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 hav07 mumy9(wlf s 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 ik *a9j9nf 6;n :2ux uqtgpyl;ms

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi 5f7 d w65qcrr;65cswi*xzkk lsts 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 de y3n3rkji:nq6termined 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 nslbo a ud*w3ygomwz )5 m.:v86,m1vxmumber 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 numberl4:: y qiikk69 awpvro90;vjb is given by Z, its atomic mass by A, and its neutron num;w:q l9v jki:4rbai0kpy6v o9ber 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 unstablvv3t fos9j,u 6e nucleus, the atomic mass number of the nucle3,jtso 6fvu9 vus

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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 int.b ,a7zosn qc: bn(x7 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 st 8 46i7yl78 asmmh:rove y1uaxable 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 nd be,v46a:uer.yyg m-eutrons are referred t .-,v4emyau:y 6bgdr eo 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 nuclei o/voep hva vb43rb ),zv )oo(j18k9cz 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 unitqkk*zdkva: ;39o0da avd qc.j cx16*v is 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 total masc +*z tb2veu6;ol.i dqs/zso4s of a stable nucleu/ dlz +cszut.e 4o2i*sv;q6obs 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 x/l7fip48 zwkm;9zas, 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 convyr, 7cf*w(kee+n4 ebhupz /( tributed 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 pk qac y/bq7jzi6hdt**9/5u er er 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 cluvwfp83+gd /g j(1beon

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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 sta2xim r ;ln9siko3 tqe7/l*e i0tements concerning 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 elecsa1n5l /9 /oka8gdlys trostatic force, the nuclear force between adjacent protons in a nucs9 ngs/lly18a/akdo 5leus 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 penetrate b:l0t4hhl5jo

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate5zoy-b2.vwa9ii 0rwg rl6d4k

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet.uoffi z1ns9m 9; +dlxrate

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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 known a/vm ut:o38:+q aknhvd s

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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 jps7ul9 648f t +-uhc8d.n z7 o*dzkzq7afzxvknown 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 befisckb4jdiwr qb*qz; - :o9x) q0-( ep 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 a );fulookuc 99tomic 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, the atomic )c5r0rqc/ sj xmass number o5crqs/ 0xrcj )f 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 unsk s+k 3+ltnjfml /f*miw*+;kj table nucleus, the atomic number of thej;+mik * 3m*/s+ n+ktkl jflwf 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 vtcppj4 zqvwg;u9/,jvs/l2 9d -a(rr 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 w.-el6 homf.uis most 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 fkj)ow 7gpz k3+rom 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 most m-x- w3*u:ls4eqgcd e zass?

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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 vas8vp(:ye8w7p5f jsrf lue is conserved in addition to electric charge, energy, and s(ffpy 7 j8s rv8:e5pwmomentum?

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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 subsh(ah a egi9 5nhv05yc+tance 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-1d 2 kn6z062rrdps+,rhtcp )kg4 is often used. This nucleus emits a single beta ph6 0 dtnrr)cdg k6k+s2zrp ,2particle when 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 t fc*wec8r)8b 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 liquit ac4;:b;njiqm92ymi d 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 bubble chppdu4p w+dj +7ambers 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 number 6 has how mt8 ;7m s5pjrkh-ckj8y 2x wd/zany protonskz rj8ym -hk/5 8ctd 2wspx;j7?

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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 nh q *0nrl9jr,1mnco:b eutronsb:ocnjrmr 1l9h0n q*,?

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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 fo 6r9k 34nsj88whmdlbn r calcium 39 are 20 and 39, respectively. How many nucleons are insh6dm8 8jbl4r3 wkn9n 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 an 3-;cf7jwn mmfd mass number for calcium 39 are 20 and 39, respectively. How many electrons nfw;3mf -7jcmare 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 and9q/hina1g+3 wys dpr4 mass number for calcium 39 are 20 and 39, respectively. How many protons are in one a yrq4i1 awp n+9d3hg/stom?

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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 auh+ os-9xa 6v w8v7uixre 20 and 39, respectively. How many neh a vixw+98sxuo7v-6uutrons 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, the number of protons, neutrcuk;xk2:r8fb1vm s o6 ons, 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 nucl iusni0 awb .e);w zdr9-4oq-oeus?

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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 numbeb fem*rhlwp,/3i l ,*qr 15 has 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 of u:z4i1fas w; ( t8q7g6harvmp $^4He$.

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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 re.wv, yvwh8 h8kquired 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 nx ftw9fzeq.q*e-333 tcuqbxh9 f:y,pumber 88 goes through alpha decay. Its atomic number is y3fxe* 3 -9xh9:qu3.ebz ,t cfqtwp qfnow

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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 nuclen4dse4soo.w 7 1y.u geons. If it undergoes alpha decay, what are the number of protons and neutrons, respectivee.d 1uwyo4 ogns. se74ly, 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 j4 znkwpcl4p1q267 b*mtyy d;decays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is releadpy;tpq4mkzn2j74l1cb y * w6sed 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 atomic number 6kde4:g /m(vh) gux/ /*yhd fkv 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 70*49asut odwb9 vljp45 years, how much will be left after 100 years?4lsu*w 909b jdvpoat7

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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 w)g(.h **tmk qk).ga rsl fl4matom will decay this year if its half-life is 247 yeahl4 a ).grl.(sg qmm*k k)ft*wrs?

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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 at j yr1*;g m .-hh9i(o 7v-mev6ahsvqww $10 \; \mu Ci$ 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 fract2 bih2batg1 uaqqr..0ion of the sample is left .2 12b .aqihugbt0aqrafter 40 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 5a-ziri+:zw nb g8t-7kx :zx)h fl3xt iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity of-z - f5na8+hxlz7iwtgxtk zr:i)3:xb $1.0 \; \mu Ci$?

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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 halfvwez48 3b-jxz8 n hon6-life of 3.0 days has an initial activity of zj8 e34wnbxn8 hv-z6o$0.24 \; Ci$. 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 pe7gcpj +k6 rp7vcz: :*p.fpato carbon-14 measured in a piece 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 of tcfp7*apgj7p k6+ r :.:ppezcvhe 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 tax/wtyw)ckf q,gfd *-pn*1l /yb3 lxt6ke $4.0 \times 10^{20} \; atoms$ 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 taket0.q)rf6g:y i2 mwybd qf1v h7 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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