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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 th( ab6)fno; egfdet p)8e 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 ismf8scx.mlq x( b8pwj1./ ya5p5 c0vfv

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consix8 6jx 5pxjih4c( *kissts 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 qfo1uiss6 .()k9ozzj v-( ddynumber 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 by the hur,o7r 8a0yk4l abq. vf w1u(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 h54sbxdr2-o zgiven by Z, its atomic mass by A, and its neutron number by N, which of the b45dr2x hosz-following 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 ma6m.z psp3a hliq9i5w-ss number of the nucleu-5a9wpl m3h.i6sizp qs

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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 aexlrar fp 6k9:(0jymzv a5/x: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 of a st uuj;2tuzel -:d)xsh)able 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 neutrons areeh4p o w5xdy y54jxsl5uq,. cab1 *gj2 referred tjx4a.,*5yqc 4x1syj5ogul5edhwp b 2o 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 nucle2fv0i v6c1n hui 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 34 tv;bi. w n8jcs*myi1mdu/ q:ygs,tas

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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, eru-0 py4;sls 0 kv;cathe total mass of a stable nucleus is4pe-ayl r;ks 0uc0v ;s 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 nucl2yx8c a,m;og ceus, 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 contribudw-wh 9t .tg*ujv,3gumnbv-s ;v08ydted 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 nucleom0oxokx:b9uo+w wy/f h)0s1i wi 5ij 3mxez6 3n 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 nucleo yajo5aglo; r92hy.6tbw cc5 .n

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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 nu: hay7o69 /qfnio0 lgoclear 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 forcegu lfiy//iaq2 t2 :cbha 5r4k9kxfx3 ; between adjacent protons in a nucl2/h tblg a2k ax9i fcyu53i4x:qf;kr/eus 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 penetratqq v5. ikeh7u: t/g qc-wa23pre

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate8 npok6(f wdm: iqrgm63 7ks3y

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetx:l8mcey v4)mj6* z(op l51zi)dcfvqrate

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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 av7 -;8ww.hq ds9otjn rs

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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 rdcrv/+txyf*j 8(l q3n 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 a()yn ; ;1vvh fwhri)xlttracted 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 ad3v95ajw;k3lnvs s- d n 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 an unstable nucleus, the at q+vtw3b5.m 0y59xaoaln 4sjb rq-ra+omic mass number of the nucle3 qn5v 4obb9ar+rmtq +0ya-j.l5 xwasus

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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,v loltv ozk0x4fz)2 rzze2s3sh9-n5 * the atomic number of tlzovzzk-2) f*9ltxs3 zrs52 v0 o 4nehhe 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 represent/ q: /mv( kq+iksf(7xp yt8lszs

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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 followi gy,hn81+ ti) /n2(mdr3jcciiuy ;yu png 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 unstable nucle)y ;hhv8zgpr 7dn5ki duxs 9-(y 7cs4zus,

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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 mv0t ua(q jyc,;-bde t1ost 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 decamzvhyr .83l/ gy/f u*sy, what value is conserved in addition to electricuy.y*3zs v/g8 lfmh/ r 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 radioactive substance as it decays?kfb.fi8q+nhmf io tae03ef5)6/ h- i n

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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 cpyk 2sc3 u5m*s:p( bnemits a single beta particle 3m cy:cp2 kbusp5(*nswhen 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 msmma2lh ( 89ua magnetic 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 usev78omm; g lzn4s 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 );1i(i p77wabxuitfgaw)d e: d:ctd,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 mvxxwaja :+,+e dcp+ f; lp r:n(ni1,xyass number of 14 and atomic number 6 has how many protons?nei:n + l,1;d(xa+x w :v+r ,ppfxaycj

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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;gxb8hn4xp + rr2oxp6 has how many neutronpo4 nr x+b6xp2g;h rx8s?

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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 numb+bn ;ebzx tb4*:o+6iggw 2 luepi:h; der for calcium 39 are 20 and 39, respectively. How many nucleons are in one z:+;tbnu+ :xb*do;wgbeh il g p2e6 4iatom?

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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 nnkf/47pr6;.esj 3ow opv) c iv-x.pp and 39, respectively. How many electrons are in one atom.4enj;f s).o n6opw p/v3rvcxi-7kpp ?

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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 num4xyedvf c j/:-p:vnzl2 b h7(:cynz: mber for calcium 39 are 20 and 39, respectively. How many/ 2 4enbmy :(:z-czxdf chn:7j vvp:ly 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 g7 q0rh1yb;x *syr0dlun n8k7 number for calcium 39 are 20 and 39, respectively. How mdr18; u0 rgnhly*7 kqx 70snybany 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 electrons is0wy3j64t k5 j0codwef 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 carbon-14 npos lnjb2a,b2vi8o: w05e 6njucleus?

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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 xp0.amu j;o(x a4ws;m 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 binding enerhs4r p8zf/jq8gy 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 fromp7 +97lp/blmeqkuc )m $^9Be$?

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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 deca4cm ruoe3v p. +*aoi )hsw*lz-y. Its atomic number is npi3)mr. ohwao+z*u *-cvlse 4 ow

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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, w,k znl:mk ckmno2 s+nk,a98j,hat are the number of protonsj mlk+oa8ckn9zn n m,,2,: kks 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 nitro92*abxsvji* ggen-14 nucleus by beta decay. How 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?jgi s bx*29a*v

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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 bhwj+ 9al3v2x6 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, how much will be left aftesw ec z vk1m scya9,a92*me6p uc1c)9dr 100 years?2d9m9u) s*e vwccmye6kpzc 9, 1as1ca

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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 nfws pu/sypn .*;c*o9 year if its half-life is 247 yefy /w* onpup;csn9s.*ars?

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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 cev(e-dxjbm5 f 4mk40vxrtified 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 ha*(6;jckz0 du5wzb muhs a half-life of 10 min. What fraction of the sample is left afh*u dzck6;jzm(u0b w5 ter 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 cxodvl2dt29u;tj7i-days. How many iodine nuclei are necessary to produce an activity-92jctuv d;od2 7xtil 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 initikjn9bhspb i6eh 8 g8)0al activity of g 86iehp j09nk8hsbb)$0.24 \; Ci$. 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 ofzg ib)mu n;sga2t28 6dk;yt;y a wooden casket from an ancient burial site was 6t t)bi;znms gg; u28yya;k2dfound 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 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 take6qhn8r0a*idw1x kw -p $4.0 \times 10^{20} \; atoms$ 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 takd*cz )y-*oswb*hy 4b ae 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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