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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 ptet4bv315tltby d3 )oarticles 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 isd l-a nm9m2: /xand-sx

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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 ofiu( /)7nlqa p ba7)ibz

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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-xtyd 0w;b,bg slnw1lqf 4l 72 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 n8c rx b+ff/0,bvh6 sgv9h1zx lumber 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 , hgj;9f(vgkfhoxieri j 5;8c5 c81b7bzz7qi atomic mass by A, and its neutron number by N, whichjr85zcif8 ociqhifex kg j7h ;1 b, 59z;7(vgb 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 nucleu-y hig n(/ 4n6.zblwzvs, the atomic mass number of the nzz-. nn l4(/bw iy6hgvucleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of proton6u g;qac48d7gb )jfs ds 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 nuc:i 4876 jbudzv 3pjos/)bko vib5i 9chleus 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 neutrons ary on6prse0hgq:m+w0 -bq1y/ de referm0 sbeq - gy1o/p6ydn:rw0+hq red to 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 6m n4litjt-q l l;2:ya1;4) 6mytg )jwuzyje bwith

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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 defined4gn,xy( -gb 9adgwjr2 if2, kc 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 mass +ej t4iu8)xn 3b9d zyjof a stable nucle4 n839xeubj )iy tzjd+us 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 stableaa6eyf2 jx 3td k.l0+wsmml:0 nucleus, 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 toqw.fx*,,:l:pxhq tcifr:p/p

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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 nucleon 5dx lpve9 5l:inrff: (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 ployh3(174kp+od tbj t er 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 statements concerning the nul9k. qy*mqpb2clear 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 adjacenkbbk r:)d c6+ :jtwqe+t protons in :6 dce+ t)+bkk: jbrqwa nucleus 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-2jj ujlld5bqtgu6 u7cp6xw) 9/ p+ae

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra 8(,jvmqt+paxb,ol n-c(e p 3zte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrah2- a1u kj5gng xll6i 37d x)(vaomkd.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 known bfaz7zbf.9( +y (w vza6 owp2eas

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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 kn2ud4( fdso;usown 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 3n )z*fsmfkg. ga6g o7to 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 a6:gnicu4uid al8(ix;ol b 23 ktomic 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 mas+wch p0wzk-+zs numbe +z w0-kpwz+hcr 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 unstable nucle9a91cl.j.yilen ppa 3+sr g, bus, the atomic number of th s9i1y claar, 3pl9nj+ep b..ge 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 represl 1hi;/kfai6k)ck b b3ents

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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 the same as a ga..wq 5bwvm: jcjv0:f zmma 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 ann k8s4b.ehko vu09hb y 5*5vln 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 mosocb q1-9:sghxi3b :pbt 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 is conservep6bsmx-c q89vd in addition to electricq msx -bvpc986 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 olktwbcg td j d;l4r8v,),4x0qf 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 singlap0do y.a/v:e*w so9akx4pk 7r*jq)x e beta particle/x9a7vysa kq.k :p04)*ood r wajp x*e 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 to curve charfbf2dwqj5i564 6xise ged 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 lv4vs 1 bqan (,9u6bcafiquid 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 chambea )ehcgba*p9hip(, 8 ars 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 protoqmdmv8pr); *ons8 q;mr)d*povm?

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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: 2qad4-1q 4qariu xfp many neutronsra q414u2iq fap d:-qx?

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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 num7ae0if bztvk43/hn+ vber for calcium 39 are 20 and 39, respectively. How many nucleons are ih+4k7ze0iv/n at bv3fn 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, respectgew 0 3w7l59v:elo*f g;kshuqively. How many electrons are in7:9efus qew g0;5kl3ohl*w gv 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 arm5s;8/qa2wcl l :vgofe 20 and 39, respectively. Hoc:2o lm5qwv lg;f 8s/aw 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 and 39, respectivelfghv j h,8- q(wh+jms.w +eopx,ndv*+y. How many neutrons jh+* nve-(,v8 hs, hdfwjx+ p+qmg.woare 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 istzo;f:8 z8li 6h t-lsjuc9r:h 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 t5h0b+ )ue4 5n pluzaqihere 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 numbeyi+bn*wi/9y;4 pj jv yr+uv;zz-i0 smr 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 en kf+e0hzim(*4;da r 9;vvk ifrergy 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 prn .xu9.t 9mjl tswi.9doton 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. Its0vcsc 8r)t j1x atomic number is xc1t0s )8rcvjnow

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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 nuc6*5qf uvrly ,ileons. If it undergoes alpha decay, what are the u 6,5 fiyr*vlqnumber of 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. Hofc1 gpfj7-b3 vw much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a bpv gfc7 -f1j3mass 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 numbe;6 f) wjmoz6hc c+3; -zobfmphr 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, how much *h8b(d 3mwrg dwill be left after 100 years?dmh38rwd gb( *

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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 t .4cy dqrp2j ge*cq*wqz-1y6qj,7 iv fn)kg-v hat an atom will decay this year if its half-life is 247 yea,p.vz74yew * 1-6rgqn dckj -gf vjiq2qqy)c *rs?

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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 certdiquppi2 98 c +im m5exfne: )75gh0utified 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 z,t/,6 j jl sodsd((imjt,v -t-ebeg: half-life of 10 min. What fraction of the sample is left after 40veot- :,jd j /bgssm,6t idl ,(etj-(z 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 is 8.0 days. How many iodiy*fq9xpj fr8xrsaf q *1x60g.ne nuclei are necessary to produce an activity of jf8r*g9fqr 1p*yxqa.xf x6 s0$1.0 \; \mu Ci$?

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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 j5uq5/a 65;znn.vk v3r wh bjbhalf-life of 3.0 days has an initial activity of z;nvq6 jr bnw5./35abjvhk5u $0.24 \; Ci$. 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 4d dzs3pvbs 82in 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 2dp d8v3zs4sb 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 take vgl*7jh*dzs e :yi;j8 $4.0 \times 10^{20} \; atoms$ 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 takef4zuw,q nz 3td/ ihj.: 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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