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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 least masses; y+8wuo. -x,m;wk8 snper s?

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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 i z:in.w;;2wfr 7x3on tnx)x hes

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus67 0qdssz/ 6dm zdf+kd 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 jspi n 1erq:c/ 9vs5v2el s7)b ur-(pe1bay z8number 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 determinmd k70/k)/af m0i72 ixijbov qed 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 ls,-co,qen x 2* gmls7) geyz2A, and its neutron number by N, which of the followz- q),m2gl2,csn e7yogx*s eling 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 ma w j,;rwe(-ge ,lib7nvss number of the nuclwgn ,(b7-jr;lv ie,weeus

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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.(pkthv:m m 4qt j:i:x 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 og9cp /ywi/4t x.u+xlu.vmulx* j+ r4wf

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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 to8 7m(o(wo odrefe(wtd8o (ooom7 rred 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 elemenlfnm1 ca5q ;v c9d:xu8t 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 is defineo3b4l4tga//adp sc u6ksq61xd 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, rge*jad6tw ea,+hh4 p-u+l .3wg-pgi the total mass of a stable nucleus is alway+.j-phgai g w3ruea,h -d*eg +lp6tw4s

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When nucleons join tf /ss -udv5h9io form 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 eei5i :;ca1(y mhc2d xis 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 nuc6*,-ihci n* wdk201lgcr v yxcleon 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 persn ynl pa;zdn s.1 -;pq1p/q3g 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 followin6 u.cb 1v nxq-hti*zr(g statements 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 nuclecftmn60ybqzmm0 : n0t6p,y ;dar force between adjacent protons in a nuclyfn 6t qt; p06cnb ,mm:0yd0zmeus 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 penetrab iadiyi;5u o76/pe6 qte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr1pv+n, tmahq y+x9e /fate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetfi+qq/segf6; l px cvx;8 t((yrqr *7vrate

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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 asrh k 1 h2pz/giq:;s u4rb,zvd.

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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 knowaa(:e07ii fhn n 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 attracted tocaam(zlew86 i* )mbl- 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 9s qfac* p;kr4b p25jxatomic 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 emit+ z;fbd75zhpi ted from an unstable nucleus, the atomic mass number of thedi+z;zf pb5h 7 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 nucleus, the atomic numz(4*tnd1uu*xq rcr-r9w / r egber of the nucleuwx rr/t cueqnu*(r1r-zd9 g4 *s

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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. 4kfpfeq. 6imv,h) /px5 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 mo /pj jc*c mqcg6)bpok;wqq3r;1(bj u )st 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 nucleus a- r5 jqacp+2bp-qe7u,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has the996 zq2g :ks (feivq0yuxihe ) most 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, whuf:07re0nds q mo;9y -en(ilyat value is conserved in addition to electric chargedyoqsf m( 90 rl;0unynee:i7- , 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 radioactivhe;nsp0y,x:6lqw r gv)t ,3o re 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 j)rxjv 6zk1wk: 3 3qn bpo:3mra single beta particle when it decays. When this happens, the rrwk:3m3vkj x:)3z6 n r1bqo pjesulting 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 char-epve1y 3nz xpis:-z/ ged 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 use(gys kq5 ldi d9cw,wi t2b2w2:s liquid 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 replaci :-0w*oy6b xf9j19bppf6zqnlby wfj a m5 4k)ed 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 atomicw ea0 w1zq.+dcf xr16o mass number of 14 and atomic number 6 has how many protons?.f1 d zca +6x1eqro0ww

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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 numbe i7uwp s;4* rnf-r7r+(rtuhyl r of 14 and atomic number 6 has how many neutro+hsu rny7f4ri lw*7(-utr rp ;ns?

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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 e6 8mxy1+fjo d2q)cu zvm3p xb64rgo z 9ra*z/and 39, respectively. Howva 2mz469o y8omxj3p e)+zqgcu /*rf6r d1zxb 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. b,mcd9ei88js How many electrons are in omje s,b898dc ine 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 anrau x;uik6 (l8m,z)uf d 39, respectively. Howifm6xrz,8kl )u ;au u( 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 nu o1 -i3p*0ytfkzc3rrumber for calcium 39 are 20 and 39, respectively. How many neutrons are in op1r-03if corkt 3yz* une 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 protons, neutrons, and electro z6m 0vi* kfy;w-eifh0y670 atnjyeg*ns 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 tqg :,a6 gtr0jmhere 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 atomic number 158yqd r88.i(lcuicue 2 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 bindinbl ,bo8e4)rbez 0v kx::yh1y ofk) aj4g 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 one protj myh5a2 31:jvrw6wfnxk- z *gon 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 g /bzuv7q*w hsz/dj*;m oes through alpha decay. Its atomic number iszzqmw/7* u/bs;*hd vj 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 nubxug n4 j,0eq167vhrk6v (oifcleons. If it undergoes alpha decay, what are the number of pf6i1(r,gxhk eqnv 64j7 0b ouvrotons 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 decays to a nitrogen-14 jm4a m3b0io r1nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u om0i4 ab 3mr1jand 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 numberg a vne 7wb7orr823 ;6ywg uig)rxn27ysmj8r( 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 yearlweo0t 21vdk/l6 w g;ns, how much will be left after 100 yearsvdek1 o ln0 ;2lw6gwt/?

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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 ytz2q c(fl: -6kytoaykp:.:luear if its half-life is 247 yearl:kkyzl::(t -fo.2p 6au cyqts?

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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 atc ly0f4nn g-nasx ) 5q,8*maks $10 \; \mu Ci$ 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 haz z5,+7am,7ti02tdyv a gk fg 6y9edfis a half-life of 10 min. What fraction of the sample is left after 40 m2 zy d 6evizd759gfy,ak0+m,i7tafgt in?

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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 iod2vm 9/kllrwa+;kl,b mine nuclei are neceam,wl29 k l/; blr+kmvssary 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:zgfg9. u iwtz4-yjb 4 an initial activity of u4t-:jigy zbw 94.zgf$0.24 \; Ci$. 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 ooi09 y/xurowyh2yz1a c.; ryx *o0*hvf 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 carbr2yo/x*1h9cu0y ;hwyv* oi z0oxar .yon-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 takewkb im72n, eaz0e d0u7 $4.0 \times 10^{20} \; atoms$ 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 *n g):ayz;eoie 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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