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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 t u 1 zdvypgp9 bqw9r616+;lffc:zcv2 ohe 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 ismv ohzcd0,03f

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consiqp/x01kv hv pena+c+ j+3k3vhsts 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 determg1r9;s) pwi- i etex:eined 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 determined byac6i,)hj p50de bty .1ra.i oc 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 atomic hil 9z9v,og -imjnu7r4j0jf-mass by A, and its neutron number by N, which of the following is co- ionmzru ,-f v 9jj9l470hjgirrect?

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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 nuclksrlfvlue 32;3+r p2o4( n 6gxaofe;w eus, the atomic mass number of the nuc n r4 l u;v( a3s6f2oxr2klpego;ef+3wleus

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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 i2lppi6pi9m4t n an 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 or ksk; (cj51rhf 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 kjze 7b5m f q6-qtrdty3)qe,4 number but with different numbers of neutrons are referred to 4qqfeb)d6 r zj5et q7-3mtk, yas

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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 kchk88;dj mm.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 imo 6hveovx r1m(6 i-9j/ mqd/as 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 itsq x .oqi,p6uj: separate protons and neutrons, the total mass of a stable niu6 p .,:qjoqxucleus 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 toy:8 zbs)7s4x1+2 g:r ohfrlovk,c v lo form 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:dgngg) - fy;zx0;ntf0m ce(w 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 nucleontz)2y 49vflwu 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 per4 9s1z:xeih3tuu. hbq 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 con (uj bxx/9/ete)y8ji wp :ai2lcerning the 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 nu3e1 wuyw/)rkjqslh hlm( /)o 6clear force between adjacent protons in a nucleus is)we/m o1l h) juh/qs wl6kry(3

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrat -+ia+dh uxp/ee

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratos2/jgsm*pr:ac,4 srz8 fn9ye

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrarwl 8*,lo;(mvin*r yi te

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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 astma)f4qk2 o5p

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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 known6gj-;s* plwm 6x/05vyj5 vnxdv l2trg 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 f(e yh+m,xv5g 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* rg db)c.iu ramg(:yr,/w/ kt an 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 unstac1s 0dwtj 2aww 80rs98wwxn-gble nucleus, the atomic mass number of the nucl rj0nss wwa 8-x8g 02dwtc1w9weus

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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 nucleu2au4:pgctr : )y fe:p9hc p.yis, the atomic number of thep:fi4:9:.yacp ) ypcg2hr e tu 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 -d0 uuubik; t+pc,6dzk6;/6clrehh b8 MY - 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 nu,: a)h7xkgc ,j-il vfearly 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 n2e*d ky gu5 u7tal+;oxucleus,

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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 mostyy4+gurxwr **etgph - 9 js:cx+ ye1y+ 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 radiokuixd) ,0 4ogj t4zsi:active decay, what value is conserved in addition to electric chx, z4ktgo )i0 dsju4:iarge, 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 av.5gnd0s cygpo 6w .t/s 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 nucleuvi5x3tdcz5mik6 f -g:s emits a single beta particle when it decays.6kgm d:ci5xt3 if5 z-v 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 charged9kgdzenc s3-)mwmj4 fle v4,/ 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 l 8qeg zsj7(1vliquid 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 chambey;p)po78 :5l- mtzb lu e,gnnbrs 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 3id- j-mr )vhig++lcdof 14 and atomic number 6 has how many protongdi+ vrm +ijdc lh)-3-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 numbe89t5x) qhce jsr of 14 and atomic number 6 has how many neutrons?s tce8 xqj9h5)

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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, respectx3gzs8r 0 xoct1j*xh 8ively. How many nucleons arez8 801hs ocx rx*g3xjt 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, respectively; *;m s1almipq. How many emq ;* lisa1;pmlectrons 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 3v1x7s z ki7lwmr59ng4 9, respectively. How mi7mkr5sv491wlz xgn7any 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 number for calcium 39 are 20 and 39, respectyqv fjn+od705 v,tlk*/,r zpsively. How many neutrons are in on,0p/d7+j lkvt5z, nrqfs*oy v 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 ofe xgx2jan 037jq .unj,d1i)3 xozej)p 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 there in the carbon-3+zm h9yz(iq7gj6.l ns4ojn o14 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 1q7/ hp1vfs8i.v -5quarvc gn75 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 energy o,q 1naqa3* 0kmvpth dr1lca4(f $^4He$.

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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 requa dwlw,ombf:f ); lhfn8/i:c)ired to remove 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 88 goes through alpha decay. Its atomic (pitb7n6oo2 j r;kf/tnumber is t 67rkb;i ot2jpon(/f now

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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 und3x ;z7 hpjs(kkergoes alpha decay, what are the j 3 z7p;s(hkkxnumber 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 nucl:k80akuv/f8v truhs3eus 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 14.00 fh8: 3srtu /k0kvvu8a3074 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 undergoesel)90y j6eyi r)e)xuh)wmd9uq a6h p0 $b-$ 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 is4 3ohcj4ry /nm 45 years, how much will be left after 100 yearc43 oy/rnj4 mhs?

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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-lii(ifl b k7 3.*e( va8yjbvt(pqxp04k mfe is 247 year .( kvi emlb fx4y8q(b0vjktaip(7* 3ps?

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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 cex44 zbrywcf0 1rtified 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. What fraction of the sample k,n*5js96dyzxe hc mi vb-.v4 is left aft. 4khevb -*csyxim,n 6z jv5d9er 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. How many iodine nuclei ar*mlh 4)t+vsy wru06a qe necessary to produce an activity ofl0+s6mt4 )v*hw arqu y $1.0 \; \mu Ci$?

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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-lipe- .g rwnv1)vfe of 3.0 days has an initial activity of )wernpg v-1v .$0.24 \; Ci$. 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 ofh212; anfey rc 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 the age of t1chf r2 ay;en2he 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.pe3m2wko e ./vfsb hika.0 2-cr dtaxa4 qq51ke $4.0 \times 10^{20} \; atoms$ 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 takerx+0a8;o 4-grw svn:yv ;pqjx 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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