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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 particle/u d3ffze(. pws 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 isi+sztr ,y r1l5e yt12e

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus co /l(bor8, cvwdnsists 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 ihl);p wt97aa 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 rj8y n+eev+:dd-sa t3by 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 gioz6n9l i zro-(y,ob l2i:0xnqo+o 2doven by Z, its atomic mass by A, and its neutron number by N, which of the following is co0di-xqnn9+b(loo2 :i6z o ryzoo ,l2orrect?

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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 an4zz3d1g k 8esg unstable nucleus, the atomic mass number of the nucleuk138zz egd4gs s

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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 anyr 4wbwq wytnv-3 3c3 xqi3eq3/.oa9q 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 ssh ,-hz, dzhnco7j(c .-h,snwize 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 b o( 4l+wmhcos2ut with different numbers of neutrons are referred to a+os( holwmc24 s

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an elemenk.6r gy8if 55wfok h9ut have 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 defined ar ;hn- 7k2gdogs

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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 new e*wr2jlowfy) kd.;-utrons, the total mass of a stable nucleus is aoey.2k*;r jl)ww wf-dlways

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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, p.i j:sh c6,:cckudl.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 nucl3, hf0tnehj2onx;:l cm3s z ;ueus 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 nuc kp*klml9tbbi4vym;x x061k.kw (j 3fleon 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 p3.g ik h e2qbmqwwswz8s 4005wer 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 xny -0s 4la.nnt7 2bopstatements 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 electrostatic force, the nuclear force between adjacent w3r 4pe4fmoafn3 iw1*protons in a nucleunw moa3ff 4wip3r 1e*4s 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 penetrq-m) nopwuq b1q;2s*6+deddgate

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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 i5c7f6rlrcs*;g *ubdv 3o fyl1d0aj6ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetray1t bh em5( a0ew4(tlxte

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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 knvr bg7:w k+qh :4hgk5jown 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 ad r9es9hfpb2 u i;3ck +kkh5h1s

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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 attracte0fbr5upi tkl3 1hj x9,d 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 4yk (qy41xqam4caw. x an atomic 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 * lgg r+siq24vis emitted from an unstable nucleus, the atomic mass number of the nul 4vg gqri+s*2cleus

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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 atom42 u(uhp zjy9oic number of the nuclyj924z hupuo (eus

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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 representsk7tc2n1r;9 qjy( j-nv+ qajdv

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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 followin +*t8/wll ujin+rs)5(hycwe l2n/n x hg is 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 from an unstable nucleustg6no 5bng6*h ,

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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 mass?8:hbsjs69c6 t 6n trfc

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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 conserved iqa;/ r ,fw w8i)so;llzn addition to electrwlrwa f8ozs;)il, q;/ ic charge, 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 sf7i,b6b4 r:w s2wiu gas 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 nucle x*0*h( aaocxh:upsq5 us emits a single beta particle when it decays.*c x0s:uaqh *o a5(phx 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()z 2o,crilcuznaz * 1 a 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 hydr-v:4wtuq c4at t8e4ib )sfdu4 ogen 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 repy-:ycxz93 vy;doj: jwlaced 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 number 6 has how many prot3 piybd8 8j0pnonsp8 0ij3bdp8y n?

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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 mas9zj5rzxsn9;8+ ,c woshjs6a is number of 14 and atomic number 6 has how many neutrons5css9,+o hjz68jw is ; zxa9nr?

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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 masi)8x 4fv deu,uhlpptfyb4 s*.*8p g,ks number for calcium 39 are 20 and 39, respectively. How many nvysf4lpg*,)ih*p8k,tdfxe4 8u .b upucleons 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 and 39, re* g t3fw0tdaz02w2tru spectively. How many electrons are in z03 twfg2t*t0w2 udraone 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 3on:g tikwa7d s2((f p.9r/dyb: gk.un 9 are 20 and 39, respectively. How many protons are in one os.b(gn:9:.(nguw2ikakd ytf/p7rd 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 396vv9cn1 rmfgfp m+ t.*, respectively. How mangc mpv6nmf+1* t9r. fvy 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 pro. qf+dmbb othcd8 /q39 s4yav1tons, 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 in t frsw)u.ddw 8,he 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 ni8havo7 1;dum+ +h mfzywt.f8umber 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 bindincyl.n xwrhc .gk,o 5a4jv4+w4g energy 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 requiredhi25qk3er jb j:ia,y 7 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 z 79e 2bub6ziwgoes through alpha decay. Its atomic number is nowe 67b bz2iz9uw

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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. y44ho i50 uafq If it undergoes alpha decay, what are the number of puq45 4hafyoi 0rotons 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. Howwl1aj i1hxo;lr9.,m bpwp 1-c much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.0-9opj1 , l1a;wm.pc1bl rwihx03074 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 4/rjyu5a o6- gn)vd3pdw j. xrundergoes $b-$ 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 aft4j)elqo4t r. vos;v.ter 100 year se.t)4.4o olj;vvqrts?

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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 a,j cj9tg-bo,m tom will decay this year if its half-life is 247 yea9m gotj c,,-bjrs?

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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 certifiedilh/q 6m f 4n0ae)vmu 9i:t-lo 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 fom/6fib6 ryvm15kzf(u pjr28raction of the sample is lefvojiz ym8/pm6kr5rbff162 (u t after 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 +krz:gsfqotg+2: - nihuz 61giodine-137 is 8.0 days. How many iodine nuclei are necessary to produce anhk:izo :-gnqg+ 1urg 6tsf+2z 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(.fb1lhoj io6 of 3.0 days has an initial activity of o jl.o6f(hi1 b$0.24 \; Ci$. 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 wooden casket fr wcqot1-m6yj kg1 2b:nom 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 ofcy1w:mbjo 1ngt- qk6 2 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 tabfvyn,78;v1p ac)h ewke $4.0 \times 10^{20} \; atoms$ 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 apf/yyf fu 9w1 4-*(1x ztc*kegvrz,ni $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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