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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 h .g zv;odnrxk7.h6 bu(+pnp-c as 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 is58(ll6b ymnh;c.dlqp)f68ve r wgs)u

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistsdww:v. fkf+irz 9*)hj 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 nu0 fyay dt4j))a6o4oha mber 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 numl) ni/( dj)m ;*wn7svis 5jlofber 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 np.*p;f s;rkna eutron numa; ;s.kn f*rppber 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 emittedk r88g1q 2u;v5x s:hm rcq0w wq*koib: from an unstable nucleus, the atomic mass number of the nuc 5 cwqisv k u:hxm088rwqkr;12*o :gbqleus

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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 e,/og0 yq;p tkin 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 bezlgeswy)x f5ak2)s2 f9 )6btgcause 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 numbrnedh77+)i (lpcs 9t her but with different numbers of neutrons are referred esh +)ln(r t cp9hi7d7to 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 24v )jpcluylwf ce0f:7p,kl+:d5fqhhave 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 deffgvz 5u- 3cb1na/p ,yhined 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 totalnnrm 6 ls+c 7:5w/xveg mass of a stable nucleus is alwen6rn7: wvcs m5/lxg+ ays

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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, energ75sx9qvlm4wf l mk4 4qy 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 nucl+i2rgg:gfw0 rvi6 n0a eus 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 pe+k c yh1euwb.2r 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 nucleon-co(t( o* ntc.ip1ncm

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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 nucle37uezlze/wgnurl v,7d;,bx: ar 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 between adjacent pro3 yf-i/bev2jgyl+; f)/5 ehf y hxdww.tons in a nucleus is-w jwl.bgfiffvh ;/ eh3yx+y2 yd /)e5

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetratu08imck,wvv (wl30ox e

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratesav(cexb04 +sa4ud t- vbbhy- f7d f;5

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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 wgm25rm+je k ey27zv0ate

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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 asg w oneaw5l*1w5,aur 7

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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 xnl+a 4ikw+ .wknown 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 32rhmf8 hev j-be 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 atlhb g/ anyn2,,omic 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 atoaj1zx 5oy 1dv9mic mass numbed o19x yvaj51zr of 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 unstabloertg12 2b(xpmu : ls1e nucleus, the atomic number of1tbospx1(: eg ur2 l2m 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 -gck0 cyi 7zq1*z g)b6zdfyv)8 MY - Ma) x 931.5 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-u/jx g(wgg f+j9)b 9/tnbrk z 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 from aj;*u (qxj hyr1 axfo4;n 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 *6c3u vhl7h./, kbbonme(rhyw w10z0r 7 iv olmass?

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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 v s;c gt:.nu 8:bjh.o+ciob-r nalue is conserved in addition to electric charge, jrnns. 8;to boh.-c:gi+uc b: 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-liw m f.w1.+smybfe of a radioactive 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 often used. This nucleus emits a singl(bds:rrdc*1 a e beta particle when it decays. When this happens, the resulting nu:( bsdr *dcra1cleus 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)gjfm +40yjtadak* oy2a4,ey 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 that uses liquid hydrogen is d64 e. tr 2abkj1.hlfma

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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 bn ltipxb3 :iel44n7; ny 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 number 6 h-qhx7 7em3 satuip- vl0fzq8.as how many protonhqtqxmf isv.073-pza lu 8-e7s?

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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 ne3a6ue+rqp1ot/nzva 1utrons?oq u+ 6zr3t/1 pa1evan

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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,cvqd p0y)i+6 g respectively. Hoyvpq 0+ g6)cidw many 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 mas0s:m rsrlf hq2,6d e)ts number for calcium 39 are 20 and 39, respectively. How many electros06rhml,s )2:tqefrd ns 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, ra-o+ lsiixcx )e5g+ x7av6:sjespectively. How ma x65:aaxs)+s joe+g-7x ilv icny 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 nu 0i:vj) w(mvapmber for calcium 39 are 20 and 39, respectively. How many0aw(jiv p:m v) 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, the number of protons, neutrons, and electrons is 41e 5izv mm8,wqwko,(p:

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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 tov 8;uv3zulqq3p .q8jje/7gqhere 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 an isotope of mass- l n3zg sfg.4)xtfu1h 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 ener, syxwlo jrj*jp. 22r;gy 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 to remove one protonyd.l20+1 1 af iv)0yw c ;mbpvk0aimfa 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 ne4cvvixf9si 6.ku 5 ,rumber is nof 6v4ksv i.e9x5,u rciw

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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. Ifgup3x2bmj 6 0f it undergoes alpha decay, what are the number offmjx upb3g062 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 by beta decay. How much enemitb 9u4fpc hkg;1i)9 ka.mg1rgy (in MeV) is released if carbon-14 has a mass obh i9t;1)ik 4c.mg 9kapg1m fuf 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 60 q om l-fxc 8l8x7cvmjre3(s3 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 yyzmrt,,k+ 3* ipkx,qlears, how much will be left after 100 years+ k*rt3 qmi l,,k,xpyz?

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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 w( -v iziwl3fe 1dt)smks 6);nthis year if its half-life is 247 yearsilkz )-)dn wv swstif 1;e(6m3?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wasey8wt2dg *t ipedbi331 /ac w. 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-li*;vg .g dy:6cvg,zak.yeb s;lfe of 10 min. What fraction of the sample is left after 40by:agyzv*;,.v.;l e 6kdggs c 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 i9iitz6 ob -/uns 8.0 days. How many iodine nuclei are neceu 6not i-9z/bissary 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 wit ez3.v, d epobn w2g;a9nv(hojr7 id18h a half-life of 3.0 days has an initial activity of bzjhpoo d rn2e(9e;n iavdw,3817.v g$0.24 \; Ci$. 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 fmlr aaega28;h6+ji/ 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 bg28j/ ra mh6f;aael+ieta 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 takm9 cyg7 0y:wmae $4.0 \times 10^{20} \; atoms$ 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 r,u0gi).34bmm ohmcntk 3bdbhl(m0;ds. 4lr 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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