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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: 游客未登录  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 particlesz2 rdnvue6941hk8 qch 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 d1.2dfwfv rx(6e ,eycst7ko k*:sg a,is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistzct.qgnz vm 6fg3o(:5s 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 numbaqs:*vekf vbbb9fzit( xe2 -c13n7,c er 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 deterkp;cq jpp0x+)ot o-k6mined 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 is given by Z, its atomic mass by A60 xa;*/zdkbo xrp*at, and its neutron nzx* t 6oabp xd0k/*ar;umber 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, tv;(se15u3 qvj fjpv v/-a8 ksthe atomic mass number of the nucleja q5kju sev8/(3f v tvsv;p-1us

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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 atpc3wyj7h8- ns,4luex f+ 1avpom 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 6 hy5s iy hho4 p6x5xv7-akyk8nucleus 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 are re6rixjwpp 9;; oferred ijo6;;wpr9 px 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 nuqv0fe;wln(8d*n5 2x yio as d:clei 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 uniti oer awfis 4wf8pv-zk2r(902 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, / zo.:ouri f,dbh1m dmd+1ys6the total mass of a stable nucleusd:u mzd.h s moo/y+d61fbir,1 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 nuclb7u38hf3ir)led4, pq q,j d mbeus, 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 ofcsuu h+yyae8cl .7c27/ (qpw s a nucleus 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 nuclepb7vzwr7/t w;oz ( lv;on 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 p 3-0wni* ex 5ox1ssxm 4r dstw/crxx,5er 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 nuclear force is falsei.h *nsfu-xq7 *tn*o v?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostask;bnr69 u90agjc)cn5i ;h x utic force, the nuclear force between adjacent protons inj9 k6;nibcc xau;)s g0ru h5n9 a 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 penetratv).; 5*zlu1sov ck4 /ew+hxaqe.zz2l9ef xjje

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratel4d qxr0 tn*:g

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate kh- 2mt0sko8a/aj0n m

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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 xlo m*q 0owl0ksg ;3z 0nq63ljknown 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 1bf7b /+hot8ux*dxh uknown 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 attg(p x1sy ctue8t)6p- yracted 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 d:ajc n xzo:-5atomic 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, thed5x3qmkqj2a en+:uk 99pn- pd atomic mass number of th92 q :9jupaknddnm+ 3xk-ep5qe 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 i(ou4rr1 sv/ p4ewoja9.jyr+l)q yi l +s emitted from an unstable nucleus, the atomic number of o i rj+o/ps14ry 4weryjlq().+lvu 9athe 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 represbgbs)v; c 3c+egi+9huents

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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 vri6b p 6msmmj07 62hka 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 eqzrdy/ v uv)p 80nj2vn6m5 7mfmitted 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 mass cb1 9d3g (s4.zk /e8juesztdx?

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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 dec5blcsv 3f1.z2fps( lba6g j/ fay, what value is conserved in addition to electric chargsfs3j f 1.z2/c apf g(bv5bl6le, 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 a-6td 3ipr;b qoj;s971la zfo 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 q8 (5qux 8ba(gtk5beq single beta particle when it decays. When this happ8q qe(g5qu8 5xtb b(akens, 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 particles is acap lk*ms7*.z

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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:c f* k;tj3jpr9 n9lyl 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 chambers bec4bmma-ahar8c j/ 6b g+ause

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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 prothb4k kof ,e:)nons? e)4kkbn, oh:f

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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 num3ogz f80sa 9msber of 14 and atomic number 6 has how many neutrons 0 amz8ofsg3s9?

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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:db2cftal) ox 8:jmg-m 39 are 20 and 39, respectively. H:c8:)jo f mxb l2t-dagow 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 mass number for calcium 39 aew -0aj; g1ze j2crr7zre 20 and 39, respectively. How many electrons are in onrzcaw ejr j17z0; 2ge-e 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;v 9)w6bbw3gn 7g.h s;h xkvxl calcium 39 are 20 and 39, respectively. How many protons are in oneb 6)3b;x;vn glh9s.wx7 vhgwk 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 3j /s- esi5*ha/ kwfz ra00;oqc9 are 20 and 39, respectively. How many neutrons are in one atoao5ahwc sj s/ r/f0ezi*;0-kqm?

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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 isnqj:ulo026z .qy5u5( vxwp qp 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 nucleuszjwp2 p8s ell3/ d4ey4?

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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 f y)60rmlmxh5an 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 oinh:-m)ne.rj 8 n fz9uf $^4He$.

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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 ,)w1jtob ,o goto 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 goes through alpha decay.pcwemc ;2v5s6h 4:n0hmiy xk - Its atomic number is p4;c6:h0m w2 s vyik hc5xne-mnow

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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 undergoes alpha decay, nmmr96b ,r8n53s ghv fwhat are the number of protons and neutrons, respectively, in the daughter mn3,mrr vnbf86sg 95h 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-11ku6tfxw)hen:adk 8s )p * 8of4 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of8)kf1txou 8nf desk h* :)wp6a 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 ml.5f2c)ag fkh2 3reg 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 45qpv-op5g9bx ifz)z:9 years, how much will be left after 100 years?fz)ob9gxpq - :9pv iz5

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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 year if its hal8y8e(f gk 5ums4b 5ng.je,yugf-life is 247 b8e u,m5 g 5(g8nyyuefj.g4sk years?

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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 certifiedp2g nw qhe 00(:ujpig; 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 frac ud1ml;.9e-t**9 ,k+l wptyhzeiw/ vzxgxk2ction of the sample is left after 40 minm u1 hvkp,i9ll+*gt2w*dtw/zec; xy x9ze-k .?

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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. s: n( 2l;)pe kg+l saq4 kz2ezo+slb,p How many iodine nuclei are necessary to prozl:peg2e zp +;o+ba)lnks k(s q4sl,2duce 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 with a halffdoy fu5lw+4n,wfiny : yx,83 -life of 3.0 days has an initial activity of 5fwl y+:xn,n4ofd 8ywf,y i3u $0.24 \; Ci$. 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 :k6h5pgp0 lbs4 r/;wqp(fjm pa wooden casket from an apmppw (gplj/r4 b fsqk;h6:50 ncient 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 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 tak+mu2*x; z( e- uyxc-f;/osbjw2p iiike $4.0 \times 10^{20} \; atoms$ 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 take67l (t1 qoar:t in m82lfgkra1 p2j*nf 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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总分:71分 及格:42.6分 时间:不限时
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