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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 particles has the least masa iea2m 9qzqb6 j7,(bis?

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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 i7 mdx12ydrpsm;./bre k4 7hths

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleuse01 s4xeyoy g4zs57zign8x l5 consists 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 -a/;sskdg 6k mek14kj 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 numbe1e;gg y+7x,gtql ncz /r is determined 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, it; e09zw )gijal5pks1ns atomic mass by A, and its neutron number by N, which of the following is corr9nwz0sk1)a pjgl5 ;ie ect?

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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, thebgga;3( +ga 1kqk b6rd atomic mass number of the nucleqb ; kk3(abgagr6dg+1 us

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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 i g3vzrh y3jhb2 v* h8w5zcz,ye cg*q,*s

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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 s:y.p u0lo htuh9; uwh9table 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 but with op 24qzl2h1 hszky 3:bdifferent numbers of neutrons are referred to as4oh3lq 2zp1 yksz bh2:

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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 nuc:8dsc(/ezusc5g q8c qlei 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 defbtll; : rn;jc*ined 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(d.m ayre sd 0yy h u9 j3bi/pn0ogg1uoj4;(t9 of its separate protons and neutrons, the total mass of a stable nrdi0u.1dup /; nej0 9s3yohm(gb ty(g4joay9ucleus 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 nucle.gn*pvre pzd2dhpf q,u 6k oj94-o h1.m5+etjus, 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 coltj,2r 6bf: bxn*yf/vntributed 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 nucleon ii(qct 7od vvmp; 60ad;b4 7lfhs

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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 nucle2v fo).qbi,.fb az2r qon

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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 f9utrccity(mv ( xw10.orce 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 forc-tyqu t* +x u+ms,g+xie between adjacent protons in a nucleus +uiyg,tq * +tsxxu +-mis

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetratezrsa2a 5nu+zo pp ,o(7z:zfjv yw-8 -k

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratet9i)ayt ,pxhm qj .:73 c.wazv

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetraubw3xjph y 6 1a.c/a8- usrda4te

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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 asnebufbs;bt /t n.6fw 6nqc1 u+83n+js

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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 knolnfr 143j.x aqwn 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 atz8 y1 bck1c4uoth o5fwfn 8;5jtracted 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 a3lp :;uwr.6ta gh,jgq tomic 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 uns p-y;ck-eom w2en6-as table nucleus, the atomic mass number of them;-2 senakwp6-c oey - 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 n lnim)7avpd/ y+*(osjucleus, the atomic number of ti)y (+jnlmpvo a s7*d/he 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 re/c r28 *cqeh + 7z 5nhzzrs/xasn-itv.presents

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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 d;jkar5u1rl/dt 7b r* 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 fro+ );2 q3ds7qj(tdqd ygm1 aajvm 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 m0o yff*b,5w( cb d5luwass?

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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 or1mpa r 5uk876rcaj4:i4p5bv a6x hxif radioactive decay, what value is conserved in addition to electric charge, energy, and moment rrbp7:4xxc iva6hi55u16k8 jam4ar pum?

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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 hal1ewp ld:f9jw ;f-life 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. Tftswp8 p2j0h)his nucleus emits a single beta particle when it decays. When this happens, the resulting nucleujwfhp s0p8 t2)s 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- q 6tqi)vk5t4tg*m oj 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 hydrogut4ksy8 ,v 8tnuisj )9en 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 bubb3(hh05xph isl (q5rx(ptyg y-le 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 mo3017 ty hcapmany protons?p1 yt0ch3moa7

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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 tzz9 pb,v -nvhu9(l7chas how many neutrons?vl(n -b hzc7zt9p9,uv

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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 c 4t/r+y3rtj xfor calcium 39 are 20 and 39, respectively. How many nucleons are in one atox+ ctyj/r3rt4m?

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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 mass3r e s3ykg*+ta number for calcium 39 are 20 and 39, respectively. How many e*e +rst3agy3 klectrons are in 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 are 20 and 36i5.3xza/dge 5sm a qkkv5lqbs71fq 19, respectively. How many protons are in one atom7s m/ls5qg6 veaf x1abzik1.qd5 q3k5?

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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 223sgi-i1u /dhxufx (u * qctn50 and 39, respectively. How many neutrons are in one atgcnu(h/5qxu1d -x ft*3isu i 2om?

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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 is 41+4wt w7to -mqo

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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 nuclee4 .aiow * 7sazs9sc+jus?

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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 isoto; p-zw ek+9 /lfpt7dqh8xx +bvpe 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 ofjn,l ;b;m8wmf $^4He$.

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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 proton from1eujwdpdp a7x 9-w+u9ugmt+0 (dxkr( $^9Be$?

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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. Its atoma-gypo/v p;ums. u*5b ic number is/uo-p a*u5pm .yvsg;b 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 undergoes alrlvl+3-hw; zat8 1k: 7fnvgmz 0r hgi9pha decay, what are the number of protont- nhi r8 +1 vfgl0alzkrv3m;wgzh7: 9s 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 d. /vbbuz;; u;7rm:l sav5pwfrecays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass v5s lmr 7prb;v;:.uwauzbf/ ;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 number1 :dbnw )porn8hoqt.3 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 will be left after 100 year 0ttse evet-9b+lw5 (xstee90tw5- lvt se+b x(?

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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 half-lip,l t/gbu+ b9vfe is 247 years/b+pu lgt v9,b?

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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:k 4yd t/nj8od 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 fraction of the sample isk1lyl 9hc 8/)gkr*kl b left k*glrkl91 kc) y/8blh 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 iodini1tjjkvhhk0+ v4z 5.i gbqk9-e-137 is 8.0 days. How many iodine nuclei are necessary tot5 kk + jg4-.jhhiv9bk iqv10z 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-lk f( asfc/ 3uo-zpqr:w 113cjaife of 3.0 days has an initial activity of accwoz3(kja1rf1u :f3/sq-p $0.24 \; Ci$. 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 pid. kq7irml0(c ece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a givciq(m. lk70dr en 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 ta1 z29a svyj:wike $4.0 \times 10^{20} \; atoms$ 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 a 1*p7cimr ,kpb7cnh4 k $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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