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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 particles has the p;mm)1 b ebwf , kvfwtn:y1::zleast 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 8c*bq+/ :kciclqv+xzpohz9 ku d0)f.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 cvy vo sl69z 5tz07;kvac o71 cjotr*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 determined by the number of mo-8:wfrst vv-y 2h 9kjj p;*k*vl9kh

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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 dets(9g3 nmx9;gnix z 7rcermined 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 aze p9n- ,jpf1psa4:jsb 0udi4tomic mass by A, and its neutron number by N, which of the follusz9p: 0-js d 4i nj,bpe1fpa4owing 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 m6vk u jy7t6zl1 dsz7+44az9mc6x mmmrass number of the nucleumt d9av1mzlz +6 z7r6k6 4m 4cmxjs7uys

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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 inq.j5+o o 5goy6/ cqgrx 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 becaug 1lvey1p07oy(ztud 8 se 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 ka r)qzf,8rkl8u q*t,are referredq 8ta,kf*r8,lk r)q uz 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 wiqz9ojzq5;h p; th

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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 defineibc19intsu7(i a 9f)l d 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 massesf8t /c5;yqoptrutj/0 of its separate protons and neutrons, the total mass of a stable nucleus f0qo /5;urc8tt/pt j yis 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 fct mizty0e9v+d 6x5s e,c) x2 kdb0:+r5sgsqform a stable 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 conl 7jws6s;+xsr5pru2h vt* o*mtributed 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 nuclee i1c .(lryyn(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 per nuclent;fk ,v jfr k90pr:e9on

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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 fal e 0t8;ody/ajise?

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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 adjacent protonsaxbm9,ixa i 7/ in a nucle9xma,xi7/i ba us 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 penetehouqq 4n d1gs3o:j 53t j6,ozrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrhhhet;7t/w7*lb q 6i aate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra)a2 c ipa2*4wj -ku2 j)k;tfsnack,vste

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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 alss,kcha(;v3 k )rkc ux*o known 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 known a++*;b rzxu7wkxjyeaxyl6 :/q4dp th : b-wz i1s

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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 attract*(dpi1 vlcz- oed 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 et. iyjzb 5z-wt/l6:y rqual 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 massx;r o 47+d mnj/ru kx ashqu(37xh8/mo number of the nucdx o rj 37nm+/4urxos;7am(kh/8xq h uleus

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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 em gp .)dap7bl 5j73klp3zock* ditted from an unstable nucleus, the atomic number of the nuclep 7bp) glddj7 kl*ckp35. 3aozus

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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 represenwzq0vk w d.7 o7 ;ac8sql;x(knts

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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 :rq;ryxs *6cg nearly 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 emitted from an unstable y8d6ecc 5douy1:5*ik2 tbcqtf7wz i -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 b)q stjsr2er 5.u,q+p8lxts) 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 co5x u 4it8c0ofynserved in addition to ele4tyioc5x8 f 0uctric 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 of a radioactive s xq 4yr vb8 5dx:3kerh(pr66nrubstance 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 vb8yvsv 23 )eacz18hf0svvk kc98 n8h is often used. This nucleus emits a single beta particle when it decays. When this happens,vz98 ccab8ey 18v2)3 h8fnkvsv hv0sk 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 cu ac6p;(hh d ,u mjh3v:ruo4,qfrve 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 hydrogen is ap nf4f9xvw wr6ge ;5byz/7r-0r l(dyn

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Cloud chambers have b9mvmm:djrvjv8 /4 .s1;xt kareen replaced 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 has how many protn/n+lzoig h 3+ons?3 nil ng/+zo+h

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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 ate0 :i615hygayj*:7lpifdki m *jmd/ gomic number 6 has how many neutrons7:y/ a0:g6 ii 1kh5l*yi fdjdjpmem *g?

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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 calcium 39 are 20 and 39, respectively. wy,b9ovg +m(a x g3eh9v:gdr3 Howdvob a(rv9 gwygxm, 3+:39hge 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 are 20 and 39, respectively. H i ln:d( tib+9v7p5k;pqpr9emow pl5 vndqk9r7t;b+i e (pp 9:mimany electrons 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 39jnr87n /b1l sb are 20 and 39, respectively. H 8/nbs rnl1jb7ow 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 cxf 76q9x5c rwialcium 39 are 20 and 39, respectively. Howwxrx97c6 i5qf 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, e7 sn av6v)xvarr5k 1;the number 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 o*arfo+o ob jye ; 0e5q3t2:c0 eqbp,vin 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 is p he*y4kw6epdg. 88fhxp4;zxotope 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 bindingf;eq;ae )2d/shau 6d e energy 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 reqm- ,u/ 7yrremsuired to 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. Its atomic number xca(,beqn2 pqu.g8 8knp)0qris,8u pnkp280a gqnrq)e cb.x(q 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 alpha decay, what are s v md65n1:z;jyou l-itj:-nly ;z6u1 msvi od5he number 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 dtzy)m)/5 kqi91cj me vecays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is relk9mt i)/z1qejy) c5m veased 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 number 6 under2hhmf)5:k05f0sa0g zqmlbv rgoes $b-$ 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 d2 -8dqm8+siymx 2kbza material is 45 years, how much will be left after 100 yearsdm88 ikbxs22m-z+d yq ?

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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 dehl:va(nswf2 /-s)kely i1 ihi74ull 5cay this year if its half-life is 247 7lslsl kfi5 -hn2)iluwh :va/e( i1y4years?

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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 certifiedq )-j6m/ek rtq 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 ha.yey ,c f:96e1xufn zhlf-life of 10 min. What fraction of the sample is left after 40 ex hu.1f:zyn9 fe, y6cmin?

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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 iodineg ia3 .4gxsfu5 nuclei are necesfag5 .u3s 4xigsary 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 has8mb km*(0r- tcp+ diec)rn8ns an initial activity of b+ 8(sn)k 8 -er0p rtmdcimn*c$0.24 \; Ci$. 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 a wooden casket from at,u2)a0td l zqawx,:p n 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 xlu:d, at)a20p, z twqyears. 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 take6/ rrb0u)lmg k $4.0 \times 10^{20} \; atoms$ 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 5:yzp g s 1ruic1n)3gi$4.5 \; Ci$ 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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