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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 partijnjxekh1 + 6k5d*3, 7wbztpxzy 41xfx 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 is sruu49m 1kgw:

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists ofg v f,xi/gj.+z

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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 num419sr1 o58gbg 2uppjg. mpzkm ber 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 determined by the numbainjx lli .er 08*btg0..: evper 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 mass by A, and dylp-b2n(s l0 w i2/1o oiaq7yr m37uuits neutron number by N, which of the followin d l7q0 (w-o 2pmisonai7ul/ryyb32u1g 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 unstablelqi89 9x fn(pz nucleus, the atomic mass number of thenip8f 9 zlxq9( nucleus

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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 a+prkib*b+hb rys*1 7a 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 stable nucleus belmi6(9bf yan hqd a;-:cause 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 numas j /n9cu57uy83b7d7szxm2 zd asyu.ber but with different numbers of neutrons are referred to ax 98 b sdzs/uz ma 57u.cs73ujandyy27s

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an eleme3tf owyiho4eg* )t( , bsvefecg )-+m)nt 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 -baa 4o: iasebq+ )e)hdefined 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 i 9wb)u -9kfr+zi wfa+sts separate protons and neutrons, the total mass of a stable ra-kzs99 )+w +fw bufinucleus 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 nucleus, energygdqs)a ufj +un)pa64h.*/ cl x 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 o inb+b, h3,xocf a nucleus 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 nuclora)ib z r54jvo/wxcmhr -)0 4eon 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 nucbxp+8uf q;z7m leon

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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*e1 e*l(yhypcq n2l +ds 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 f)4-rwt2gpn /oatd dm 1orce, the nuclear force between adjacent protons in a nuc tptgd)-dnr4w2/oa 1mleus 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 penetratelb9 6og m)j edag)zt .,0:n7jzhg z 8jqk8syt-

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetral-a 2c6ys,h4aidnzet7m 5;lw te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrad6yh(c-yc xo9 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 also8nfzul gfpi zo1.) :gm.xp28m known 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 known 3o sc bs n2/ae4;vqe*xas

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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 ;zrc)mei ov1h(;cs c1be 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 afd4y/8+zzvm a vsg b.8e:xi0tn 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 atomic mass qr + )rr1: .gifm+gyptnumbe+q gtr:.fr1 )+pmri gyr of the 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 ato:trbv/n,f z/by eb7b qy22j:nmic number of t/ b:by2 /b2ntne y7v,qr:zfbj he 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 .5g qbz/tq56k8 qzwly9wx(wm- 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 samshg miq3z (n83e 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 emittedzfwl43r) .odk from an 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 the mdh/hupr,.wv f 6 a/v/e+14+ ptxkbn pyost 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, what value is ca7v p03q rqy-rp:- n(mxy.t k/dyy1u 58 fxtmaonserved in addition to el3xp.q/x ana 8-vdty :1y-k(upt ymrmf7qy0 5rectric 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 decvcjwuc:v: (2xa 1n l4oays?

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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 nuclege lr)cmr82 77ik7b srus emits a single beta particle when it decalbrc7is7g8rek2) mr7 ys. 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 fikb7 )n tj5-d7strv.(7cfmeq celd 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 hydrogen iw0kc73hrn n w4s 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 bubbk5 dlgz )(t)e-cxucbkwtf8.( ci0 -z zle 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 u9pp4kg. m,65cba yd jvj/ju4 atomic number 6 has how many protons?ucj ja,6j/4p95k4gduv p.yb m

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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 how mant0/ vag0 n4lxgy neutronsxvn g4l00agt/?

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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 3;m/ 6 wwenm*f j 3xfbprgtf18 8y:f3ea9, respectively. How many nucleons aref1 fr6aeb;f m8etm/gx 3w p :jny8f*3w 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 ma5eeglsqw 61 0iss number for calcium 39 are 20 and 39, respectively. How many ele w e5l0q1egis6ctrons 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 ca c9+ ykeu,v3pqlcium 39 are 20 and 39, respectively. How many proek9 + v3uyqpc,tons 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 numf(b: w2, pivqno 2qwh)ber for calcium 39 are 20 and 39, respectively. How many neutrons are in one anw hoqq, ifv:p)w(22b tom?

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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 + bk 4stijoh 86radd/+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 there iwm rc*3mq) sjqy4xvj- :*(ztbn 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 n,vez fqno34b -umber 15 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 of-a34uj+o885m mj)jxl xts bf 16l sbwd1yb7wj $^4He$.

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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 from9p rph.z ip4 8v8(g0,z)hkumzd+pt/dcg8yyv $^9Be$?

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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 goesxrr iarvcx+ e7a2t*;63 p)spgdl6g) w through alpha decay. Its atomic number is no;g)3p7+rsaeir vx6l p a dr6*c txw)2gw

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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 nuclebl k-)ef.an 4c f26vc+4 bstgrons. If it undergoes alpha decay, what are the number of protons and neuc) +bb er26t4n fca.l4skg-fv trons, 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 nucleus by beta decay gay 9(g9mgu.(t dvt:rb2y(ld. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.0030:g (u rgta vtmybg((d2dl99.y 74 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 numb5naju d y. i:2p)z(b h02wdrmcer 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 will 2ne38. k u.u f8apnbe3wnofm*be left after 100 yearbun .n.o 2uwfa3m*e 8pfken3 8s?

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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-l 9v2okgwg n17tife is 247 yearsgwn97o t gkv21?

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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 certifii*:nl6p l u:yced 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-lifrt)i55ez7w2jg t 1zgh/eehf 0e of 10 min. What fraction of the sample is left after 4ih5et2hf0 eez / 1gz gt)7rwj50 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 iod.gj-g2 c, sqdqine-137 is 8.0 days. How many iodine nuclei are necessary to produce an a ,jqg.-gsdq2c ctivity 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 initi d*qt)ha b)h,gal activity of )d* h ,bqtg)ah$0.24 \; Ci$. 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 aqo6 wyg-c 5mvym .*y1p 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 .o56yy 1pmcwv-*q gymper 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 ta o hn (hutbu44t t.;*ldz96qfqke $4.0 \times 10^{20} \; atoms$ 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 a 9vzkvcbn 5;q )ihy)5x$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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