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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 particles has the leastv u36s 0*zeuby 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 is jjcenrm;: (7x

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consigoluc6fl r110d*edg+p2 u0 lvsts 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 nu4es u1lzn:3k9sc413 wnqvaz-m d x vv;mber 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 numberzqtsrh(8 fb. , 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, itsxm6 uzw +4l qktwes0)5 atomic mass by A, and its neutron number by N, which of the followingq+wwk4tm6z5xe s 0lu) 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 mb*tthv-ib13 u ass number of the -13tb vithu* bnucleus

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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 an3:n06kt;t lly xpjd+q 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 oprz.0da o ylrf.d d5 dhq4i1e811u.rnf a stable 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 different numsgayi 598 s,c 2rg6 h vg:9a0laqjvz8zbers of neutrons are referreg svsyjzql5,r 892zg0g6a9h8 : cvaaid 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 w ,bk)ioh k)zu2ith

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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 defined at/ykc/:j q8+id h 341kac,vdfu( nzi gs

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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 separatcd* 1avy f7z674qri8k3i g a8wl8en uxe protons and neutrons, the total mass of a stable 31kc 8x*i lu8vgfz4a d q7ny6i 7rewa8nucleus 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 tl(.:9kbelw p; w cor-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,zr:n p3l mhkg*,re73wnxir , 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 nuclen3, 8ihuq-o*t7ak zwuon 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 nyn5:qq u(d;sa 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 the nuzi7rv6vs) b 5ozvr :9eclear 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 between adjacent protons8 ;, no),e r.yrdrrmhf in a;m f,)8r,.rhdyno rer 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 penetratyov /th6y2 o;te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr) cji3cfr n/y5vv40klate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr.n x.wwavb6ys. )ed(date

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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 alst(6t /x;xz ehdo 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 know ,neeodiz8ng, .- vr:ms(l/mcn 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 t2,konq:/5 ul:s 1 0vdbkoniioo 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 acv*k2gm*( s0fdknm. 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 unstable nucleus, the atom(q y8h34 yoryqic mass number of the n yqo(q83y hy4rucleus

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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 an4 rcokny)d,u +v /zcd* unstable nucleus, the atomic number of the yv + rc*4odd,k n)/uzcnucleus

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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 8;cd6-s;zi*kfq7vx wyd2 gnm) 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 followi3 5ba*mzc)j gzng is most 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 unstableuao(t lo/h r4ts -y)1n 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 most61fogs 4e 0*crblp2-p7mt gba(pr :ks 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, whaj *o alfr ( .6o:b,36hiaqfmgf )c+xdet value is conserved in addition to electric charge, energy, anjiq 6f*o(e6. l:fodf),rm h3cbaax +g d 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 halfiip -m-1wjckpp:z8d / -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. This nuclvg6e- 2u9h oye)ua8nou8 p--3vhg zjheus emits a single beta particle when it decays. When this happh9 23uougvy)v 6gp- e8ozu8 ej-ahnh-ens, 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 curve chargee 4lhn*byl8 pvh r 7)4qk:aum4d 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 h jm0x 1/tq+lsthat uses 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 replaced by bubble chambero 0 idzz9fsa1u-;-t8 b6u:dh c,dxcos s 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 :qg9(moj+xyg number 6 has how many protono+ 9gy(g:xjq ms?

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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 : ls9s 5yn6jm+vvgr954yduoi and atomic number 6 has how many neutronsgs nio6:4syvy99 djmr 5l+ uv5?

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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 /, u98gopp /9oj4cfy;fqlfom calcium 39 are 20 and 39, respectively. How many nucleons are in one a 4f/pq,myl pfoc; foj8ug/9 9otom?

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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 2 39zslh an/-yq0 and 39, respectively. How many electronsa/s9yz -nhlq3 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 39, 2m 4zm t1k 0rur4b-6j,r k jiryb3ozk/respectively. How many protons are in one au 4rjbkyk 34/jb1,-rtroz6ir02k mmz tom?

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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 20 and 39;s/bsl. 2 qns+ s)yj/ii vzer2, respectively. Hob/)i.zl /2vqjesr yssni+s;2w 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 number of protons, neutrons, and electronprp1o37.war ds 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 tho,l6bv1kmpw , 7oeb 5te 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 isotope of mass number 32n60 lp1:era9esp; 8pt *hn*hq1y fgqj ,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding ene(5om: b-v jwmtrgy 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 rt;b 51ey6( 5;oyhm gm+bopxfkemove 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 8jg- p ;xndkh/lnqa ++38 goes through alpha decay. Its atomic number is no;+nq-p xg /3dlajh+knw

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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 undergc 6er( zra+n/moes alpha decay, what are the numcnz +6 m(rea/rber 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 decays to a nitrogen-14 nucleus by beta decay.bkq/;mjui(1k9 gqk .q How much energy (in MeV) is released if car9j(/iq ;kmqqkg.kb1 ubon-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 numbe,q)aq1fx /bmj r 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 material4/wvjq a;9/h qr ,tbb r+cd1np is 45 years, how much will be left after 100 yearsqrbwb va t/9h14+/ qrp ,n;jdc?

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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 zv 2wd xn adb+r3giv2bu0/h7, decay this year if its half-life is 247 zx,3gw7add02i vn /r2bvbuh+years?

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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 as hc3*2d, ,e jbbrj8nwt $10 \; \mu Ci$ 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 ,uqgr*d 52lxt0 q;b mgis left at2 b5rgqqgu 0xld ,*m;fter 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 iodine-137 is 8.0 days. Hol)ql1h( cak/xozbwgi23/tg:0dc/ h vw many iodine nuclei are necessary to produce an activity of haw/zl/2ccv kgg0td:qi)h/ ( lxo1 3b$1.0 \; \mu Ci$?

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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 o9ryr;eu i*d 3ef 3.0 days has an initial activity of 3y 9rr udeie;*$0.24 \; Ci$. 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 mebmv e37 41 sn1hzae fv4f9eew9asured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts pewv1 vz 49 f7seb meeneh34a19fr 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 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 tn (5gcpqxzp+n,s(t4$4.0 \times 10^{20} \; atoms$ 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 l4b2 .z6w bvaihui)j3k 8qpi-$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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