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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 has tn7x8xnfm+y3gyon ( u y.uw ;k:he 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 istatq *x.u2.tr 0mdkr( et)rj nw.s07w

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cyt4a ap)a8m8s-ph2r t onsists 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 degyelfb,(-u 2q92.p, fzeiod2y7nl axtermined 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 deterx q23kyo b)m4u bp)fk.+x qxe. 9j*krhmined 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 g9 oc++o uce+6f6oldz is given by Z, its atomic mass by A, and its neutron numberz cof+dlg+ ouc6e6+o9 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 unstable nucleus, the atomic mas zh8)9hr+of oxs number of the hofz9 o )x+8hrnucleus

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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 an atom is zh0wub agn,// q)*mctv)g)dj

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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.) kkifz. g .ho*t(acsf 3)doqleus 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 boi+(bz 38lea 2rdcyh:ut with different numbers of neutrons are referred to2: albo8ez hiyrc+3 d( 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 nucleivmfo0tx/9w/n trf (vm2.tyy6 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 asc rs73y,tsgm, hnby)*

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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 of as 3zq ox5ys1qs:uk zvuzi2z dab-z (8;1gb5f8 stable nucleus kbs8v:a2s dq1uxg53 z -z8zz1 5foquzy i;s(bis 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, energy kx oje:lfx 5a-n4;dy*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*0guucnl0 m8 r 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 nucleoc.7mi xrdi h29n 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 periv7)jpbmh * va 5,ab1t 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 statement9:b kuo7r+dyc s 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 nucleaedjg y93vbq7a+c 7(mqr force between adjacent protons in a nucleus iqv73+yq(m g a7cebdj9s

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetkrn2*q -5mhm krate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrateajl mvmogqql*b1fv lu0d8 g v(9- /2)c

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratebnj 9zvaz v7* .hj+(kdst1p9t

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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 kcoi*s;sxi)l-p.k2 qvnown 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 k mnxi y5h)t-edg. i69xy-2arznown 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 wil(4z 4(osz kjb.qo tn,il 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;mu w1 2tnx;pw 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 is emitted from an unstable nucleu;0oyzzu - ol :haf5yn6s, the atomic mass number of the nucnuoy-o5f hz0 y;z :l6aleus

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha partic: d q:blm,,hh mmr:(ogle is emitted from an unstable nucleus, the atomic number of the nucld hrm loq(hbm m:g,,::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 -2u5 tzjy.sz5ccw *v k. 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 -s rapu;:*qcn-)ynebnearly 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 emitt lq94. enaldg)ed from 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 mav 4z9.mx*nreyxa n -3lz/ j.hvss?

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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 dj u; lm6u,r /f(jpx.ptecay, what value is conserved in addition to electric charge, energy, andjurj;tu.(6, x fp/p ml 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-i dl+h8o q n/i:*)qfrjlife 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 emitsku*:r*v lhq2wt d,vy( a single beta particle when it decays. When this happenwq :v *tykdv*, lr2hu(s, 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 charged parfkap3t1mbsgl s 44 8u(ticles 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 tbndwcc 6s *rls87,z7q hat uses liquid 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 repla4eu jk973 v6um luuax(t cdnu8e )8(ysced 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 8i5fsf462sei6 lyxw4wh qr( b has how many protons5f64qyfssb6 wr(whl x248 iie ?

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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 manyq amey;3,8 mnwzz 3je4 neutrons?y4j3n8mz me;e za,qw3

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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 calciu pp hh g-daf63te h6jb8k+/*rmm 39 are 20 and 39, respectively. How many nucleons are kfh*p eg +j63-dhbtmh /8rp6ain 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 anv1;3vy u+ f7 bak-aayw/q 5pcnd 39, respectively. How many electrons are in one-cya/;3 p uvbva+5fa1q7ykw n 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 gif+*ptve ,ipatv)zx,+ m v* :calcium 39 are 20 and 39, respectively. How many protons are iivz:a+tte*,vg )m, vx* fipp +n 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, respectively3,/8r afuyjt0u9 dern. How ma, rt98/f u3uj0eyadnrny 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 electrchhn18n;4y 5 47vilbxca tr n0ons 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 carono2w/ 2k5h2:fh zlrgbon-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 atomcmze9yk67 g4j8dy9 hu ic number 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 o;uky5xc epv1* f $^4He$.

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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 r:coj(sxe -zmzlx*yxx9u)a q/ +fo3*zemove 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 numbe, lhqn f7t: dd5,gjb+er 88 goes through alpha decay. Its atomic number is bq ,tle,gd+h d57j: nfnow

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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. If it undergo )fh3txe;posj464b qv es alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucl6bqxf;o p t4vh es3j4)eus?

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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. Howw r/+d3v2 mbhs much energy (in MeV) is released if carbon-14 has a mass of 14.00bdhsv w3r/2+ m3242 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 numbe 9yh7(x:sm;m ebm)j ior 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 materialgawki4o a)b98 is 45 years, how much will be left after 100 year8)4 9bkigaa wos?

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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 yeb+rd+m e 2xh) fkn(cf-ylf)l6 ar if its half-life is 247 years?l+) hy+le) 2cfbn6fd-xk( r fm

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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 certy )y7q; q,o2ksyh+e gtified 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 haypniz a,0tc8m ptcpf2.( ,v8t s a half-life of 10 min. What fraction of the sample is left af2ct .y,vfip88a tpp,t(0mcnz ter 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 io)dlro;a 2fl; f ms5uc+dine-137 is 8.0 days. How many iodine nuclei are necessary to produce olr2afs5 d;lc)m; uf +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 withb17l9g6i.x n mfxaze2 a half-life of 3.0 days has an initial activity of xzf29 gm . 1axbel7ni6$0.24 \; Ci$. 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 r2npo++r/1u )vqc s mwin a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute frr /1cu)2+o sprq+nw mvom 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 take , t3t:wmj fhp+$4.0 \times 10^{20} \; atoms$ 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 wpj( 9km3 jgb1;;pqs sa $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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