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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 particzm2 ok2ynj);i les 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 is10korw3 n:/c qogh)eu

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cons (8nv .ul0 7 rvlc1y2iobzm zu:o-kvd6ists 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 number ofjv r4/te c(mqfxd;8;vgy(q3 s

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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 determis/ib8yog.gwk2k *+ taned 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 ishopm.cb- w f tpz1(mw-vew9 +.8w7 asj given by Z, its atomic mass by A, and its neutron number by N,1fm j. h8wmew +vs7bca.-wzow p-9tp( which of the 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 nucleucen.*g+k vd 9bs, the atomic mass number of the nucd 9gebcvn *k+.leus

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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 athnsst otghh 2jr d3-7g))n m;;om 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 f4ou:sgrpg0. 9 qd0 dqthe size of 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 nen(a( )uc :oawfutrons are refe :a(u w)a(nfcorred 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 havz+r+ry :p:k mqe 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 iouj4khk3b8 cb/ tpwd n7da7ag4 w k5+4s 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 its separge1yd1. izto0+lhi, qate protons and neutrons, the total mass of a stable nucleus is alwayo01ile 1ydq.,z +itghs

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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 nucleus, energ3s-8z is13v) bx)thh0 o 0ckz+cgvx1 sha )efwy 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 cont)ocegl/ 2a;vl8ms:ty ributed 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 itudb sw/6ncu37; b- vhmph-h2s

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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 ne c ;mp7c6q6qqucleon

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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 statement 5pl :7de:snmcs concerning 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 nucl0ef*32,pgb tr-kf 8ke 4prv gh lc(6yxear force between adjacent protons -p8fegf, 0kpb 6gx(hcke3v 24r*t yrlin 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 penetraloeid0* 3 .r0udmp ml0te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrat,2rev-kau+ z z g(dqa.e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratedbl4cslelw6/8-r yo 4

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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 a/,9m felc /cf cwr+x.bjjc.: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 kno u q9cys9x0;rdwn 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 a6y ( y)ggo8e5 x4vdzqattracted 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 ) . 9k03r .l0wwmkgo*dshmjpdto

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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 numb;ejk*bj3 38z bf pxsl;er of the3pzl;8 ;jx b* bjskfe3 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 atomigp;c.(r +ff rsqi+g. wc number of the nucleui(+p+g scr;g f.w.qfrs

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX -.eilnx l0cb1k vsj+8jf5: k.r znwl9, 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 nearly the same as a gammpjof + uwke (2+y+5ipra 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 unstablel xn2gh544w swrwy08 nsxk o91 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 t6xd arl7g(ho 3he 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 da/2/xca xr;u necay, what value is conserved in addition to electric charge, energy, and mna2rxu//x a; comentum?

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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 smdy rq 83(ptrm -0(iuhalf-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. 2:pjbz 6m, ame This nucleus emits a single beta particle when it6me2m:,jb pza 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 magnet8a2;h+* q q(iki:rlxuweml )i ovh fb5l8t)p6ic 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 hydriro)*,de/p y mogen 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 bz ph5-b.kyt/77wofj 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 n*r)cj o-c3 auizn -sa,umber of 14 and atomic number 6 has how many protonsz), ja-runoc*-ac3i 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 nummn r5ko 27*;u 6tx:0iwooe t -huf6swkber of 14 and atomic number 6 has how many neutro kixfk*oeowu mot7s06-t5 r2u;6n: hwns?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number ank9gn b +c+q)tcd mass number for calcium 39 are 20 and 39, respectively. How many nucleons are in nk b9g+ctq+)cone 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 nv 4cs7vgote7u:1v z 2pyq;7yeumber for calcium 39 are 20 and 39, respectively. How many electrons are 7q71t 7povu; eys2yz cv: egv4in 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 nuv b v-xe+w)gupvie*: o1eb)-amber for calcium 39 are 20 and 39, respectively. How many protons are v o xwv:ue)+i) g1abpb-v-e*ein 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 ma)i5m.hthki3 2wb;ntl ss number for calcium 39 are 20 and 39, respectively. How many ;h li)th2t5.knim3 wb 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,-qzp4/xgbx i- *2 h,wwlbqoi* 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 thei0f xvd a5d+b pn1tjnec2982l 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 has an isotope of mass number 32,d)o1+o 9tcijo hcb+3w

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding cpdxx:.un8v-fy (,yd 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 remolb z2t 5.i4xeyve 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. Itsyk(m :,grz l 3d be1-phpkw5r2 atomic number is n,zl ky prrgb5de21k-:(3w p mhow

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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 b;9yel6*icxwi r y6 ;dit undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucleuby;d6*wy6r xi;e9lci s?

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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;q;angqm* ii z 7ml,4oow much energy (in MeV) is released if carbon-14 has a mass 4qlmgq*o,i i ;n; mza7of 14.003242 u and 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 atomice h azvs*g:4o- number 6 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 wilq+ i r/gb6kp h*dt-u9el be left after 100 yearbg96 /ph*du-t r+ekiqs?

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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 ato 9atqcb7ad 3h pik1z6(e; co/9+siowe m will decay this year if its half-life is 247 years?h;c1a(/oatwkbe3co9d7 is9zip +6e q

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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 cerhy5:*m,kt q qkjd.dofv8*5 gp tified 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 b e ms(rv h90f4mvv8-hhalf-life of 10 min. What fraction of the sample is left after 40 v0b4me h-hmvf (vrs89min?

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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 moy lmyp02:5yqlh 8/nmany iodine nuclei are necessary to produce an activity oynm0 5p/yyoh8l:l 2qmf $1.0 \; \mu Ci$?

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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 actic3 ,chhah-kv +s5 r+nc i;)qbbvity of ;ahnqh, kc vic srb) -cb+35+h$0.24 \; Ci$. 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 pieazkarpq6c,fgb- w06 ynio26.b7l:mv ce of a wooden casket from an ancient burial 6bvzko7.a wg2fp 0yqb,ac6n-m:6lirsite 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 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 takln4-komc) bp.e $4.0 \times 10^{20} \; atoms$ 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 at ;/uk9xcrez21 7o yia $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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