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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 parjuz,m7hj-3xs vy/qbz lw1 1 w6ticles 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 is89v- tgd6 d +.fxjehbc

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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 d ;vs(ra/g - q+.trevpof

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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 determine u4kpmj ;diga)s4 )v2nd 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 m+b6 )fv wuz0kthe 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 nky1yamx7 tz6:f /0 qvup;qq bh7q(sd4 umber is given by Z, its atomic mass by A, and its neutron number by N, which of ths(t;fv qxy7 / y 7k:hz4quqdq61a 0pmbe 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 mass number ot iv/ liwqn24 si:qo-3p4sie2 f the nucpl 2ni3-iiqw/ 24 sestq i:4voleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protonkpnu2 ksp15 ii sf6s*+s 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 nucleus because k .x*n9pd;lue 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 are7t8eum+ t jmv5 refem em+7j 8utt5vrred 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 elemenrdr x,o1s mlwaa12/l 4t 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 : ,ibynhc-aok4 gjc-7 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 s k.bhzf4 ck,cp:ep96keparate protons and neutrons, the total mass of a stable nucleus 4kp,6.ce9 khk:fzbcpis 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 st p0n l1mfe ejdqvx +azpoc-9i9 t2/h(- wy.az5able 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 ayat5 zz9)wy9a 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 n4q76zix 0me wnucleon 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 n flp3js bz* kfhdk5jiz; s (15hbv:3(fucleon

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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 o;zo yb*l*h 7hstatements 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 0v du24)pyksy3w8wjt-3 pu bjnuclear force between adjacent protons in a nucleus isdv0j3)jw4 -2ukswyp p8u 3 ytb

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetr3k2x nidwqpah,zb hle:37 t35ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra8, ss si1:f9pesjhh +8;teu5iab.e xwte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratefb o/ w1eyll(l42y 3yv

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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 asx;y:4si dj:j y

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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 fo-p8ya * )pvf(ym1eoas

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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 wc khtd tf5( 9sv.p/c1be 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 atomic mass elz )qao34n.:vex wt a+qual 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 uns6rhbwwj(e w- -olno9.table nucleus, the atomic mass number of tho96ne rlwj(-- ow.bwhe 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 nucleusuh 6ntu zkmibl9 kxdsh7:6:7 1, the atomic number of the nuc sz:n1mb67th uil:6kk7 9dhuxleus

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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/6+vc:4srrzhd j .pt i - 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 the same as a gamma ray? j b*n5g9k5fl8-5qq kq(a imhwv ng9+b

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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 eyw.iwc5(zd g:g +ei*w mitted 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 my e0z0gq8 hb*ov9fm3,yk o hs0ost 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 isi.247a uk wlky conserved in addition to electric charge, k.l 42ky waui7energy, 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 radioactiv*dl kyy5 flt09e 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 single betsa3u8ql/vyox m)ku); a particle when it decays. When this happens, the resuluq lxask/v 3y8mo);u )ting 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 magne(0,69jf utzc9y awlhqtic 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 lzjiz1f(x0 e4 jiquid 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 because/yxf8op7x tu b.hm9 w nb.g;1c

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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 atobb/+; 0uvil23ox,rho* dtnvr,d x;iwmic number 6 has how many protons?or+ 0/dnh2*;xx ,lidi;o vvbt,w3ub r

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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 m6y6liv4f. feaany neutrofle.v 6aiyf64ns?

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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 o/dhv d4 9mw2 z; 8jugg,ub9rvcalcium 39 are 20 and 39, respectively. How many nucleons a94mhzd8 b/r;2v,j od9uug gvwre 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 calciuwsd.zf+8 .nmim 39 are 20 and 39, respectively. How many electrons are in one ato . fniw.8dszm+m?

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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 numu obzb8k06.h ) / c:skywjqoa3ber for calcium 39 are 20 and 39, respectively. How many protons are in one atomqo:bc/6o.u yh83 skba)kjz0 w?

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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 num jzm61kis7:csny,o wdgt 2+2dber for calcium 39 are 20 and 39, respectively. How zcmnsg1d+:k do6yt,is j72w2 many 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 nu kyut6)gp m-ac-cb4zd m)rq87mber of protons, 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 the carbon-14 nucleusu vc*qw:,4q h .yhzf+m;m,jcv?

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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 isoqehf r9tc,bi; .ug3-otope 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 energx1k +-brtzh;:(3*ie; valp+tqjaag y y 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 py:cb* u01ckyrk7i fqr:i 5n0h px5.snroton 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.oj ccaq5z swmx)(e689m 8* k9xc:ure d Its atomic number is xaez8)qe9scx j 5urk(m*wc6c:m8 d9 o now

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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 undl7j*7qa;vroz8 jzu;wli / b/vergoes alpha decay, what are the number of protons and neutrons, respecti ouv;j z7/* vl ;7i8ar/bjlwqzvely, 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 enerx,jh 10c: c:sx9hjbi sgy (in MeV) is releasex:b:c9 1jjic xh sh,s0d if carbon-14 has a mass of 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 nu 9 l 8ydm)mgu+a4m2pxlmber 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 yearr4 j+xmsfpa) 6 j;tt1; mjjq7ts, how much will be left after 100 year; xjja)j4+ m6tstr7jpft;qm 1s?

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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 anct.zq8gk.s4tlu,( v n atom will decay this year if its half-life is 247 y(qlk8czg .tstn, u v.4ears?

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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 certified at*.kkl.up q6x.:jtnzt. m i)bs $10 \; \mu Ci$ 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 4i/ellj lvj.;has a half-life of 10 min. What fraction of the sample is left after ;v li j/jle.l440 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 m i 3j)wd 6h,nr0c1i3asq;tdav7ma eq0;p nth,any iodine nuclei are necess 1pw ht3idna,)dv6rqa sn,0;at;qhe7cj3i0mary 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 with a half-life of 3.0 days has an initial activity ,rl6rwl dj5z 1of ,l61rlwr d5zj$0.24 \; Ci$. 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 measu9jjk mvq6m(9bred 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 beta emitter, is 5730 years. Thus we would estimate the age of9b6kq(mv9j jm 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 on4;ld;a((kc +1rn ; hl6k zeq/squdbe $4.0 \times 10^{20} \; atoms$ 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 take16mbcgk;k1gorr7 2zf tt.* xq/y *kx w 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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