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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 particlesi;f7/nqtavu-9 w le:jt;1jpfeb7f /v has 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 ip cl /4t/+n4+r 6weg mad*asvis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cos0-o : h 6l.lz,w7aafj vnxf*e5a2ootnsists 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 f 4 k)y+sbjzxq1i)*pxas 7c 4vby the 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 20 0wl29p6yle p qylfoby 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 amvt4vd/w6z98t3p xhq tomic mass by A, and its neutron number by N, which of the following is co948tv6zv pwhq3mx/t d rrect?

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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 nuclevneow+ po5zfd04k-vcq7 tx8;/nl2 pdus, the atomic mass number of thelnv0vwoq;k4zd 5f+ e-pxt/dn 7o8p2c 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 anm)r* fg xfyx+. 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 nuu67/p l0oktd fqxk(: ucleus 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 nl gjx6zbel+ 9(umber but with different numbers of neutrons are referrllze(gx6 9+b jed 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 wu4scwhis3q, ;o0u5d.. pxu*mj 0s vj xith

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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 defi 3nx+o.z uswzzh8wrc3,6t5 jfned 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 neutr2 bmnmu8t iwl+ b 0g: +*z(xooot2f0vhons, the total mass of a stable nucleus is22(0+f0lbwo ithztb mng v+8oxo um: * 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 nuclekl:/gv tpht zz2/7 xplw-d;7kus, 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 cont8p x)g 8xuq6u.jyz+f tributed 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 a, -c(ct8pr ekejtp8nx87bb .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)-bplc +gixo /g+/av y 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 following statements concerning th tfsj:6sj v;cp8i/ub 1e 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 between adjacvmjk8 i(70 vuqent protons in a nuc7vm8qkvi0u (j leus 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 penetrbty.7l7z xsn:ezd(x 2ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra7oxv36 niq tklxmso:. w)8xw)te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat4(f*zf4by15jhhw q36 lgkvt t e

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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 ke(p9smje a 6; 0xtnr*unown 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 kno 91+jlexl,d9l +ke.)tq vrryhwn 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 attr;go;bl )ivtk i .4yx/tacted 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 p bv/btq u(0uph-c;5 yan atomic 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 3 g1s mr v,l/sjjycj31an unstable nucleus, the atomic mass number oj sg ls1y1jvc mr/3j3,f the 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 nuc-o3zwnr2o(69wpf8 vlyr9uf*2 s rrepleus, the atomic number of the n32rrwuve-2 yrs f9zpwo p 9n8r f*6lo(ucleus

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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 dsw txr 2m9/l f470pyjpu3.lrh7whe0931.5 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 following is most nearly the same as a gam am:sb9na e(,lma 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 unssz p.vap+09, wfj ibq9table 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 masspsuuh2,,p 5gs ?

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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 radioactkp8fc 2ih oo )f9w1+b-gpo ja1ive decay, what value is conserved in addition to io2ojw-phg1k)b f9+1f 8ocp aelectric 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 halftmkj5j:z2 r9h-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. v1m0kwi.r1 jsThis nucleus emits a single beta particle whe1 r0 ijsk.1wvmn it decays. When this happens, 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 charged paa41 uk,lockl((v k/f irticles 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 hvh0x (x3dxub d*c x(b+ydrogen 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 c.r2eacu c -0gyhambers 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 atogh,ktn 8ulz *fm 0t99imic number 6 has how many protons,9 h*fnmt0zul8k 9t ig?

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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 ozwg 7qxok kf-6h /x32gn: nh5a53qh.o3xd ftxf 14 and atomic number 6 has how many neutronxq35ha 3/n3d5qnwxfo.7 k:- hgxg kto6fx 2zh s?

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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 ano g4oe0gai5k +d 39, respectively. How mag ea+g4 ioo0k5ny 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 uv9ja mjjwdc-; /9at6calcium 39 are 20 and 39, respectively. How many-w; tm6cdaj9/9vujj a 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 39 are 1 beol 61qtcx(20 and 39, respectively. How many prol6tc1qb e o(x1tons 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 calcium 39 are 20 and 39, res5-r 8x 2)g jbasza/ xrikq(5pzpectively. How many neutrons are in one q axk i2)/(g r5-s8zazpx5jbratom?

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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 p(o09eqov /i jfrotons, 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 in n 03fl,cxlpt6(u8vutv d2hy5a(-wkuthe 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 bn b9h94z2kqe 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 bindin/ l.ua tap2wvlu1*9e ng 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 prot50jy8hknn9r y2yprclc9 bg/- on 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 t 7lvgt)ey+hnb 0 15bdnumber 88 goes through alpha decay. Its atomic number is no1e0)byn+ v5dth7gbltw

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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,+djq2g+ooerf c+.um6 l 0 sp/g what are the number of protons and neutrons, respectively, in the daj /e mcgfp20lorq + g6s+.ud+oughter 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 nucv, 7qk7lj8n noleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u an qnno7l8 7j,vkd 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 undergoel lm13m(-5ha dr,:u yjzbqy :ps $b-$ 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 wb quy evobb3 2*gv.b/.ill be left after 100 yearb/ 2*.3eyb.qgobvubv s?

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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-life q8o/cnqxl3gwwb (c .4 is 247 years?38 lc w.o4qxbq/ngw(c

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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 certifa.8akoic- w4k4y( mm lied 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 1ib/6/sj/tz 9ixr aaxof 10 min. What fraction of the sample is left axr9t iasi//ba6z1j/xfter 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. Hq o4b4eh 1bqldtnz(5* 1uke3 eow many iodine nuclei are necessary tbebz3441hq un k d1 oqee*t5(lo 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:8/rx m:)ej- swl3uo8l qbe tj-life of 3.0 days has an initial activity of / l3-8q :: sxjetjewoul mb8r)$0.24 \; Ci$. 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 piecsu;)uc8uwyk 1 e of 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 carbon-14, a beta emitter, is 5730 years. Thus we would estimate ;u8ucskwy) 1u 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 ta p4vbw +(* gx5cvulg9xke $4.0 \times 10^{20} \; atoms$ 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 ag a+zw ow*zn*70jf u2)vsh/sc $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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