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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 theza3ho;:q3)rf7d g9es j 0ktdx 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 iv()f0b s.i po duqln l.aos(/l4m)qa/s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cons4rtd)m w82kn ntsnj*-s: vw1p.mmp) yists 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/1pfvfzd2 6a 58 )qn7 gagaxdd is determined by 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 numbesf:vi5i s5l-5fti,ml r 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 nuu.l vs0n,z4uqn*w05jcp8 pcz g f x-2umber is given by Z, its atomic mass by A, and its neutron number by N, which of the folp4x5 ,2jzul q*czwcu.u vn 00 -gs8pnflowing 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 mass num)cv kfn6z ; vtnsr3qws6 **j4xhfc7;mber of the nuf7;* fh* nmk nrst6)czx6jsv 34 c;qwvcleus

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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 x-z 4..hkeol igm7a -m 5da6kiatom 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 x;/cm fls ichzxx(*.xwp5 a/y3+ l8snof

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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 differ0ex f0cpajf50 ti*q4 aent numbers of neutrons are referrefx400ct eq* a 5jp0faid 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) mezshej e3 66fhaazc6/g e+1 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 +h m zh;wxe;f*j4k*/uks8ohi 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 of ity+o0z t:hgz v2s separate protons and neutrons, the total mass of a stable nucleug0h+ tzy v:z2os 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 fo+6bioj9dwc4 orm 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 contributrg n..ajvs; 5 icy+4yoed 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 nucnb7h 3y5ocmip 8)f h*as1 5bgoleon 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 ornf, ().bbzt 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 the nuclear forej vjbx/r1lx;d,c1* yce 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 electrostatig r-qp:g23xgqon7v0 wc force, the nuclear force between adjacent protons i rwxp:qggvq-no27 03gn 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 penetrate7bu ),c7qvfnisg4 ha5 s5 ng4v

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetralkdg 0 *g 4lmk9)b+w ratqck/1te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetnsa8g5 +n noo,rate

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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 aa 4zfpsu0 / doc,e;:c;c6y qncs

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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 as(2xz4 *ozqp3o6nqd.x2:tmzsi xndc(

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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 attracteu wb7o+q s-(mdd 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 mas;p gap 3e(a(ups 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 atomic mass numbe /4g(vtfon0v-ks70c a(u ksser of the nucleus0s(u kvavos/4k tescgf -0(7n

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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 number on v)q-h bi--eafkm3h ,f the nu q,)3af--evnmihhb- kcleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - M11s,l9dl p9eanv+z b bY - Ma) 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 following is most nearly the same as a gamma ra2wch: jee uk ,e:if7-pxe j3/xzah30ey?

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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 nuc+ ec 8;;onvezlleus,

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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?f1urb w)3u:aat.b9uv

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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 decaydl c0to0c k/7ze a8(bmq o90yv, what value is conserved in addition to electric charge, energy, ac(98dlm0ob0 7/zv 0eytkc a qond 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 radioacqy+kgh81g+dcs * dl(d tive 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 is3 26ranv-ldzbx 4qepdm/if 89 often used. This nucleus emits a single beta partqe8d pi vl/z6xar m9b3 -4f2ndicle when 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 magne y8:g:loykt-bvh ,+n8tc,s litic field to curve 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 xbuc-qqy m :36eb 3jg9hydrogen 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 byjby 7ohauyp6-tz 9e m.- hnu)- 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 atomicago18pads jtpz n4/+6 number 6 has how many protonngjt ds/a4o6+1 8zpaps?

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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 1/8 i 5nj*657ih7qeg;xgtydom zuy a2p4 and atomic number 6 has how many neutro tye/85oji7hnu2gp;6 x7*qyzgi a md5ns?

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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 num -- **4hjh/n1l rthb4fnylknjber for calcium 39 are 20 and 39, respectively. How manr1 hkjjf4yh 4 lhn-tnl/b*n*-y 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 299mzf nq2f/x le6 cj5e0 and 39, respectively. How many electrons are in one atoz 9le/mqx9j fe 5cn26fm?

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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 ntz+ cqpo84 9whebv0;pphk-1 sumber for calcium 39 are 20 and 39, respectively. How many protons are in one ato;c4+oz 98v-ppw khhp0q1b etsm?

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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 ylmyo8 1c+uy u)- ow0zand 39, respectively. How many neutrons are in onz +l1y -ucom80u)oywy e 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 electronhys9x w,-fzn3 s 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 the c 1i.lpi;oj9t z+ shll(arbon-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 f k(m.rsl;+vahrw2x7 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 energy ox; 7q5 ,hxa(pgoel/ mvf $^4He$.

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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 proton from .ql 15 yft1nzd$^9Be$?

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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 atomiay;dw* orobzr8 jl en)c-j/ *.c number is aydr*o;c/ ljr*-objenz8 ) .wnow

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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 underg ttnj vcjp/ 0(hlbvh6n1* p9,toes alpha decay, what are the number of protons and neutrons, respectivelt np1hvn(*cpbv6l 0j,9jt/h ty, 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. H/uqc+r4u+n .;rq puv*nbj 6 noow much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 u?*bu+ nv4u/q 6or nn;u+rqj.pc

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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 unde*qg c28xiy* a usf0d6grgoes $b-$ 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 left after 100 yearobi6b+1a;eb lhr4a s4bab hs;6olbi+ear41 4 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 t h ( wlwian jj3/++(lkvci:hq/hat an atom will decay this year if its half-life is 247 /w( wj/hlvh(alik+: jic3n +qyears?

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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 at ddi c4t)ht k( lit200o$10 \; \mu Ci$ 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 sampljh e t:,zic7hri *:+fwe is left aft*h:7h, rztej wi+cf:ier 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 radib ,yb)p ugo9vi/o 0y/hc*rfeon0 1fo9 oactive iodine-137 is 8.0 days. How many iodine nuclei are necess9 beoyhf9bro1/ng cuo/*o0iv f),0p yary 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 an initial act /3sxav. : m6qjuwhea6ivity of qx36u v6 s/mw.aaj: he$0.24 \; Ci$. 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 duu)e(av()wdux ccn1g2 e to carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the sadc2 u(cuv) w1e )gaxn(me 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 a4 w1et wb16ge3ln w o-5tuh1w$4.0 \times 10^{20} \; atoms$ 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 e gvr an4jdp1,99usr9 s 8vcg0a $4.5 \; Ci$ 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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