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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 partiae:otg 4*ht7-.ui bbt. skys2 cles 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 g/duddg)i)8x 2u: oaxis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus pg 74fum55rrt 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 numbec3x(t7kwzw , rr 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 number is detevqfj y f6 ;jbv ,zli1m5i mrc2)r.q.x:rmined 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+hg*3ta m:zsn, its atomic mass by A, and its neutron number by N, which of the following is co3 nt+:*a gsmzhrrect?

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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 f5zuphol,q2vfs)sowk-f, (sx 1 126 mbt m pcy,rom an unstable nucleus, the atomic mass number of the nucleusfsqy f-p1b, u5zs m,o,cltmo (12s v pkwh6)2x

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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 anrl x./e1k tdw9h;ge n: 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 ofp9 t3 xrjag e52xfmx5+ 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 numbers of neutiv/zl d r s,)m so:yn4+vv*lj/rons are referred )*yj nv,/lm v/ivsr: ld4+zosto 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 elementuvlw(id1p- o2g3hz e 8 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 defined:su6pf8 v4i(6 byg2ogoz)mf u 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, the total m61)vg8fpzglvg +mmdwt- )i/ lass of alvwfl8d-t+ /6g1ig vmmp)) zg stable nucleus 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 a stable nucl mal -w7nh5cedx v3*2peus, 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 nucleusj s .+9cm o0kevqd9q.qi v2r.k 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 persh pwg4bh(f)r ir2.c ledu 14- nucleon 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 nuclb6)gjna: j q/a-m 2;uln.r cp4 j-t:wmc 6botseon

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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 force ih4 d 82jzokb5is 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 to 0 6o8 l(.(cwufweyiadjacent protons in a nuow0(l(yu oci f. 6t8ewcleus 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 penetrc axnohdit. ot, ft-2f.u, p*/qa-a )jate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra4q1 bf5mhcf u0te

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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 v:xj 03g* zds cw/xz*q ztrl2uevk/)/ate

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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 knowcnx.662*wrq ujpsn 8 pn 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:tsr+* po blq*wn 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 wiif2 ,6nq v ld+7vyi2wyll 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 mass equal ,rk2k5 s n0dn1eansa (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 uns9akuzmi x8c)ul2.zm- xj (h1gtable nucleus, the atomic mass number of the (8mjk l -.ig19u2z)chuzxm ax 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 gew( 5bqx m.ad+n;k:d 85gt dwatomic number of t ;txw mnbe 85ka (dq5ggw.+:ddhe 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 reprhp+pkk6;99ih do qr)tesents

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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 th5 ) 0* ljp- su7e++zgfseyknqhe 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 q:dz3m z( i (sl8brhf*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 thi iz0;sylvb 4o956lxq 6ga)cqe 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, what0ss0,k/hjtx q value is conserved in addition to electric,/q tk0sh0xsj 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 half-life of a rad qnm r6a7k c30k6rl4(l8-afg1jgcrhtioactive 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 a n(uegj 06;t2 ,zmawxci- hj-isingle beta particle when it decays. When this happens, the resulting n--ni0u 6;i t(2 zjgw,cm haxjeucleus 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 ur8(qd cky26hto 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 tha 7: ia-nz6)xfrp ubf+wt 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 chan.zkbck/2 5 njmbers 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 numbla g *ntcfch1*pj,b:dj, zl,-, rr6x ler 6 has how many proton lz*bf,:j ca p l,n-h *l6gtx1d,rcrj,s?

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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 and atomic number 6 has xz,muh10s3p hhow many neutro3m zh1psuh, 0xns?

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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 and 39, respectively. Hb hrhq98)dn gmaw5 )o3ow many gnbw)qr 9)3m h5ah8do 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, respecti3fk3d7a9bi; uc mg xz/w+n2m lvely. How ma a7w/+3b39 cd nixfm km2zgl;uny 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 az 85fiyx5r; tare 20 and 39, respectively. How many protons are in one ata ;r85yitz5xf om?

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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 numbeh qj5c0ggf6k;eudf bt)cu5a k1co)) 8r for calcium 39 are 20 and 39, respectively. How many neutrons are in one atfoc8uq 5)c d5 jg6 u ;ka1kf0gt)bh)ceom?

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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 ugk;)8mz+smg zp0/ o:eu3 )obz+cnl nnumber of protons, 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 they:8wu )r)li vbre 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 15 *ialey( g(g qk o m3u(np)1/johas 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 zl8ju:vtv g .rs5.aq*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 proton fromp9 ywrn* q,,tf $^9Be$?

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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 a;7kve 4dqa 4l:.z k-npwn)fdwz3: roalpha decay. Its atomic number is nnfop a4a 7d:w)4k.rdz:vw;k le 3- qnzow

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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 decbkt :evw)xvv 6yoh3j, nb/a 64ay, what are the number of protons and neutrons, respectively, in the daughx vbenthk,6634:v ) b/ywjova ter 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 dea/vi+-y zl* b7swiba bhu ),p)cays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u an ia*ylba/ hzupwbb,-iv)+s)7d 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 - zorvj4 fsc /4cfe+7f6 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, hori(sc a,cl yq 8822vcfw much will be left after 100 years?f2c8sc aiy82( vr lcq,

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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 thiuj*wo+;-;-d edjby ohs year if its half-life is 247 j- ujh ;oyd;d-w*b+oe 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 cka*fp5 oo k*s: 9pddehe*38j48no drcertified 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 10 min.5t2 4dqmdvwphim:: d0 What fraction of the sample is left v mdt m 52d:whqip:d40after 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. Hj:-r ,rvs3ehp zrdr 87sv,l /xow many iodine nuclei are neces8rs phzrv/:3r-,el7sr jxv,dsary 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 substanc8q45.bbfds- nuvud x 0e with a half-life of 3.0 days has an initial activity of vd-dubqu5 80s4.nfx b$0.24 \; Ci$. 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 wooden caskejp/:acw a8 gytyn+nej2*tow((6orb) t from an ancient burial site was found to produce 20 counts per minute from p trgo6ja)b/onj yw w8ay :*n+t(ec2(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 takg;aggm+-**ip k ti u,ke $4.0 \times 10^{20} \; atoms$ 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 an -b8fi:d8ib w $4.5 \; Ci$ 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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