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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 the least ma s0 btofilq6h 2guhi)hs.4( s34r-zmwss?

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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 issr 1k65wpt hl)

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus colpjp:w9-4:9v6ujgzlcp2jun nsists 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 t2pv:1e 6hmdrdetermined 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 mxn/5r/t2 t*uv* egcpcu 3 :njthe 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 mvc6h -:pvc +o4k a;n3ap+ okp izbrc8+ass by A, and its neutron number ;+cvpk46ia-c phpa+k+v r oonz3c b8:by N, 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 emittepqs5ukj8c6k8e w fic g ,o6t/.d from an unstable nucleus, the atomic mass number of the nucl 6wuig8ske.p5jq6t co k,c8f/eus

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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 atom sl5 (s;e nuhc+n:ct 8zis

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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 oj,wm o w3hzp03.nun(z ,sf (ithe 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 nuedr:yv1s- sl ,op q0t:mber but with different numbers of neutrons are referrtr:, 10vpqsl- eysd:oed 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 eleme 84 prk2kf b9xgzkb2(a sea6+7w3baxent 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 abc cq+.:j2w3a. ,k vzdsqpfdma/g.q;s

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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 t8x+z9y+s c;2 b cxihmseparate protons and neutrons, the total mass of a stable9xh2cxc+ zsi b+8my;t 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 t9 )2iuiw.ihctg x 37:,fbmjjm4 q9kiqo 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 is coq(3 14adz:wqzu o bv9zntributed 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 nuc+m6(f ; oqp.xhyu/ g wqya4(jzleon 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 nucleohuvhn6 uhp/ 7x(( d+myn

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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 statemenn 7cj biik*-fo2hr1n+ts 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 electrostatinb kh8ogc3x3p0*i.b m o2tu3jc force, the nuclear force between adjacent protons in ax2tomh*83ko3.0 p ji3bb uncg 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 penetraf ej3euu68/13 krmja 8:e ,dq iwro6vste

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratejwzkw 82j -dwbr/;h 6h

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratzzvmo9jn8u pw wv)/ :3e

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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 knownvu /l;x s.rckkni*q ,0 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 z 5exon el1vh,6m/-xma+ h.wf 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 t/ 9p5rvid bp8to 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 atoiy 3 afqx,i/;6ezgzv5 -.fv1) ajtdpwmic 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 mqqzx co7e:/e +ass number of the nuc+xzqee cq 7o/:leus

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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 dih a*p:p0q*sis emitted from an unstable nucleus, the atomic number of d p:0qa*h s*ipthe 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 representc9vyt4gbd+f.7u:yo) n2xugxzu y(,f s

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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 th 91 a6hpim;1r1sh fbuae 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 uns jm +os dgms5f f1fogy.(htv)hn52,/ztable 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 zmolxp t i(zk ;zc+x46q(5+u tmost 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 conserved in addi bc:tb ojd-2 a()d(:k j+qcjcjtion to elecj-cb(+jb)( dqtc j d c::ajok2tric 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 substanagtwth zm;4ew +j *s28ce 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 qzk63,w7zx1 ,x pvvz ha oh4z*s:2t hfnucleus emits a single beta particle when it decays. When this happens, the resulting nuclx1h4tpk ,z vsxzvq7o:6 a3fh*w zh,2z eus 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 charged particlv 5i pnavtbiapr6y- p 548ll3)es 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 hypd .v0m0ox cs:drogen 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 replacedv)socam 7 mx59mxl3 t+ by bubble 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 atomin ye;d wge2tu:l z22vy*sqo(b oo/+4ec number 6 has how many protonqyt ; oso/wnzg(+ev:e22l2* obde 4u ys?

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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 y;f;y ubvk v)7and atomic number 6 has how many neutronsk;;vvyf uby7 )?

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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. *amgtt5o;5 zc How man5g*5;m z toacty 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 39kq,bc d+ 1+y*dzo3 5z ceu:xrql4qw;p , respectively. Ho*p13kc4++:q q;wyc,d d z xul5rbqozew many 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 are 20 and 39, re49mg oji4k9us spectively. How9ug m9k44soj i many 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 f ;imb))ic ite.or calcium 39 are 20 and 39, respectively. How many neutrons are in)iibem).ci t ; 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 pr.htg)fd;; unk otons, 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 th-z,pmq jc1 wo vb:.w, gkb7yd:e 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 mqorc(6cb11anumber 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 bindinsqyx 7o17//z +hd,wrfhice1i g 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.. (;qeqcjjv ypw -5ey 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 nuhyo(2 fw;*;wyg8nk 9k.zwm urkx5 j7tmber 88 goes through alpha decay. Its atomic number is nowwxkkry;u*. wgow9 2j m(ktnhy ;f7z85

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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. 8qgti9dgxw ;g(:tmg5 If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter ng t8(gwq9: dgixgt;m5ucleus?

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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 be0 zu e4pt..m)svk kfor:7w3vcta 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 o)ck.u.w:7 4zremp0stv 3kfv14.003074 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 6 under8 i7fv7y p+zgugoes $b-$ 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 yg-z( q5xt6 gypears, how much will be left after 100 yearg x yp6g5zqt-(s?

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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 ato2iqeuy0oj1 8um will decay this year if its half-life is 247 ye1 2y8u0oeiuj qars?

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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 certified at ux+ q;;:ytnes$10 \; \mu Ci$ 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 thd5ssvy9n .wb t7 (f/cve sample is left after 40 min? t.svfw/b7nsvd y59 (c

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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;l8q-vx , hy6zxvmlb)b- vn+a-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity v-lz+, q) y;hmbxn6bl8av-xv 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 ha8ll,9 tqfnu k/:(vmo vlf-life of 3.0 days has an initial activity of :t mqkv, nuf (l9lo8/v$0.24 \; Ci$. 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 hef9w9 jizn80 y( pny+a wooden casket from an ancient burial site was found to produce 20 counts per minutw+9(9i0jefnzynpy h 8 e 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 ta.q6ttp,zz:l hnouq- 2ke $4.0 \times 10^{20} \; atoms$ 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 f+shb1 9e1x5xtrb e *aa $4.5 \; Ci$ 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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