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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 h72 zw3 dtuq d3a;vp9bpas 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 isb/ d/v)f/,rsl3bi q kh

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi3npx 3eaylzcv+3l/d297gpe t b5w0 qp sts 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 t 5g,mrn2r0,ct*wxl oshe 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 +ddesc2f*m1j 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 atoml :xtw*f5/7eqh zsxt-ic mass by A, and its neutron number by N, which of the following isx*zf wh/xtql:-e5ts 7 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 nx9fo(dq+cu d-53xviz. mij h(ucleus, the atomic mass number of the5.diqxc fhm uo(x (iv 3-zjd+9 nucleus

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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 ato+whof;.jn1sh m 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 xgr +4ql tiio 1oqp:;q9f47p cbecause 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 areb :tp n/w+d.tl referred t/nwt+dl :bt.p o 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 h:c9n46wxekoxk 4 c 6yxave 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 1,uo b 80nzzy-qz / t3zpkq1shw*f bi;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 dy1s(bg q,zxcw/q, )zof its separate protons and neutrons, the total mass of a stable nucleus is aq1gzd zb,xw/,) (cysqlways

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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,m8k 3m /kfx9ht 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 nuz, 1odr. ob9z+kbf1x:*b zrkgcleus 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 nucleon43( pfudw 2rua 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/:lsa9od stpl v(.n0*t(6* arhpy eyih1,ekl ucleon

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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 0l2xfoaq2: rul)p* dlyvdly; 82,qq g 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 nuclear force bet. / ugke/ch9s2df +eajween adjacent protons i2a9d /u/k.sf ce +hejgn 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 penetrqc obd0r9 8fqaq ;v8l4ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate)av6 jx;dqqr8ix : w(o

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrar+brl5e,illw v4 / 4i0y6zh bmte

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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 know.u0um0vg- jndmu 4gmvc)jy)vi9 i -/nn 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 asymkrp w3 )x;n.

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle will8ob(hr l:2 fwq 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 atomic /4+;jd jbvckz 97bgedmass 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 emitt/uany3l dg4mjk*;a p 5- ,uizhed from an unstable nucleus, the atomic mass number of the nucleus-yjp;m ,ul/a i z5gu4h3 ank*d

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particleon uc*pz2oc dts+;kbl-hg(* + is emitted from an unstable nucleus, the atomic number of s*c gb-n kpoltcdhu+ 2 +(*oz;the 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 repres e6q.kb fn7g8e6ps,l;h0+xt09cjcvmna rp9qents

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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 nea,7 ,xsbdufw m3p/m* bfrly 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( 0 )n0yf,03pwvoth cif pept. 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?kaz ie:b v/d8f rvh0;+

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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 vazcr w*d5r ahs2.6jt x,o92bxb lue is conserved in addition to electric charge, energso b zac592rtj.d2hrb*w xx6,y, 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*oqp i.6-jcj l 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-1ara45ub);j0l 7sa huo 4 is often used. This nucleus emits a single beta particle when it decays. When this happens,;ajbs 5h74u 0u lra)oa 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 cp c+ vwnf:3p:h a4g-cn)ki7r burve 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 sri 7 d acmm8v+e99*wehydrogen 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 brj e (i4w6ts*xe+f p0my 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 ataexi 7 xxn f2yy)/3/1()lfnpwn;d:o ye2oglnd atomic number 6 has how many protonsa1 yg e y2nxt/oil(;7:)/yxe pfow)dlnnf2 3x?

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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 mk5 /ntjecv:ld(e ,,o)n jo y;eass number of 14 and atomic number 6 has how many neutrons?5coejle :nt,k)yn/o(j; e d,v

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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 cal :4di3ovfxh6avuph rz(e+7t5cium 39 are 20 and 39, respectively. How many nucleons ai54pro 6t+zfve d xva(:h7h3ure 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 39xez3b5k , s0cd, respectively. How many electrons are in 50kc3 ebsd,xzone 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 39 7wfq(0wi f,xk3pcr/r, respectively. How man wq0rwrf(,i c3p kxf/7y 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 c a 2dnkp ,9rf,uc/vwr1alcium 39 are 20 and 39, respectively. How 2 wa,r ,p9c/ uvnrdkf1many 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 pr..6ppr iqt;p jdrx 7i+otons, 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 tlxrjpfa4z0 +uq3a24y here in 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 atomivqi raqvg .4ec2-y7*o6 ;l.nthdeu .hc 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(x fl2hrtt-g 3 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 required to remove o2mc5 :go )b(utv3rdtone 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 throukd 5xkjv4tbk96+o g )ugh alpha decay. Its atomic number is v4djtkok+)9g k 5u6 bxnow

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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. I1 d01t)x vifw;km b6tef it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucleusidb) 1kt1efmv 60 ;wxt?

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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 nucleu r+dsn /,p2mwbs by beta decay. How much energy (in MeV) is released if carbon-/p bsm d2+n,rw14 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 numbe9 d 59s6nz*zj ciimx8pr 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 lef3u1*eh(kx u x: xmk;ln0wims qjnz7 :;t after 100 years:uzjkq 1xs3 07( mu;hxe*kn;:wl m xni?

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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 qfise 9v.60 mhan atom will decay this year if its half-life is 247 yeamefh09sv. q i6rs?

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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 certifiqkb4q.j.r 2 iued 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 hlnb.1; d5zr)ny.r+ 9- sdksaplb6ux 10 min. What fraction of the sample is left after 40l9-.ssd xybua6+)bhnpzd5 .nklr r1; 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 radioactiv7u wqp -kb7s(e/8y akke iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activit b8kq aw(e/ysp7-7kkuy 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 g*f75t osgy.qdays has an initial activity of g5q7ys ot*gf. $0.24 \; Ci$. 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 woodews awf2f6 m-k*n 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, isw * ks-mfw2fa6 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 bqd( c 664gbsn$4.0 \times 10^{20} \; atoms$ 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 tak.er gj)11:9s vujlfqse 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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