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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 parxh ;klj4laa/5ticles 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)7oujp arrv6 8 rpbf92, hz2iag0grd-

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus coam*- ws5prcdh d+ 0fo-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 determinedbmdbk7, c: 5y( gindz s7j6,,u knip)s 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 tm n3*s7: hkca 7sccsp)2m b n26cwpf(ehe 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 mass by A, and its neutzufg69y 9tve9 ;abt:yron number by N, which of the follobvttgzyf6y9 a9:u e 9;wing 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 masspqod)i;)6q w p number of the nu)dpw ;qp)q 6oicleus

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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 itwy9do2f yf5/m 2 *uel/-ctzun 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 of a stable nucleus because,:s 6l ,cpvvda 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 l6h;n8l+.v l:vxz3m7zwst cp but with different numbers of neutrons are refevzt 7x+ 86lwm zpll.c3;:nsv hrred 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 have nuclei wi6tlwlg( hlb, m w6 ,*vxsypz.jg f7y(7th

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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 define1h ib3t*7 24urvhtr- ju*nrv fd 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 bxo4rqd-c1 c1ts separate protons and neutrons, the total mass of a stable n-b qr4dc11 xocucleus 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 foko z4 5-xylf2:gwdf 6srm 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 contributer iyu*rym +i*9d 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 nuclhp5 -1gfadyy-* e s5 e8tmq9kpeon 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 ahcm3qsbabsn7 d0.yzu5a1bv7k ( 7+ g 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 stat dh aiu8:j*pq;l .yqt.ements 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 forc)ocgrd0t-y ,l,t i5eoe, the nuclear force between adjacent protons in a nucleusiyo5,t0e ,og )rt dlc- 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 penetomlh)56bvy3 q rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate l)mfsppj5/l;hr8 *hp

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetv;f:vi* fj j /mom/zvvk20i;jrate

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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 aspe52 1v 2 u :j5pr4dufq*0ind/c qfbhs

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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 kn 3cg2-ryptu/9xqy*hcfqj 21 nown 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 will4yv r3roep ov5p8 wx4+pv-iu3 be 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 an atomic mass eqb+ff,; rakvb* ual 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 vll917z w8r/fb,olec emitted from an unstable nucleus, the atomic mass number of 9o8vle7/ rz,lc 1flwb 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 nucleuk)cx 48le3)ksvi u eh 04jd73cl3esov s, the atomic number of the nucc kjs037xvl )dks 3eh3iu o)lv e48ce4leus

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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 representa)ig ;vfulyf/- f, *yfs

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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 followinglqgz(k5 mq );il4 -wee 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 lz3c+3ibw1*yhe we ;j 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 theyyob/4r+jk ui-zm lvov1i.() 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 decay, a9ubj:x. hmih:w l4e*what value is conserved in addition to electric charge, energy, and mome wh*x:um:.bahe4i 9jl ntum?

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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 substan -bj *)s.ra 9bve1svbtce 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 ix d8oov f,)dx)s often used. This nucleus emits a single beta particle when it decay8,food)dxv) x s. 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 charged particles is ads diy ud,4wi1*b nj ,sa/s z 9)ftxdcvyt;5(*

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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-cmqa,0 )untobjuk1 1 uses 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 k:/xo7, hke+ rmijai/ 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 ax ) +7xi/n(b-ro ooh l,)kcgmkdiv40ond atomic number 6 has how many protonm+c) dgi4 xv oonol0)b-7kxhor(/, iks?

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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 ms2tj5)qe;rmnq wdav78.b v6x any neutro8 q v6;wjsn.td75x b)m2 evqrans?

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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 n1i znti+ t4q-6+ftqvj umber for calcium 39 are 20 and 39, respectively. How many nucleons are qztn4+ vtt1i-6 fq+jiin 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 calciumqsf67hp jqo23g.bb4.je52t ynj.ak s 39 are 20 and 39, respectively. How many electrons ar.ben s o . b5f3 jk.hpq2agjj742stqy6e 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 cal2m ))z.xvi,b nusl,j/n r8+kqmf xzf2cium 39 are 20 and 39, respectively. H2v.z,)if8 xq 2fbkm,uxz+m)sr j n nl/ow 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 forh0x gr w+8kry) calcium 39 are 20 and 39, respectively. How mank+0)xrg8 y hrwy 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 is 4bw3(2r*:beuj oj iw /k1

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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 therk. 77nxfcchvv21p6z:li n 0a ke in 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 number 15 hmxlp8tvs )g2)90grwc 2uc u;was 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 (mr(qql61sdh 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 on(tmp iu 1jd.ahu32.qye 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. Itsr-a ennbmjj d6h.2qck 2t(-j1 atomic number is nkb -ejn -tcrhd12 6jmjn2qa(.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 sqj 86u.a gbf*it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter 6gbau.q8fjs* 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 dej4p .fpctkh4t*rcrw;wvq8 *z7p . cv-cay. How much energy (in MeV) is wcp847k.-h z.t *;p4c fvq*twjvr prc released if carbon-14 has a mass of 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 atomic number 6 undergoesj hip*d/c9v g+ $b-$ 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 4niovj da 1;s;ys2 /p mbt,zz:will be left after 100 years?tvd 1oms ,;s/n ijb; z4:ay2zp

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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 ana m;6mjes aka96axzqvj *j-+. atom will decay this year if its half-life is 247 yeajj;qa a6z*m+sa69k.- v emaxj rs?

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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 atw::vl20ur 5 2aobgfud $10 \; \mu Ci$ 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 sam)y.9n, z6sgg;3kqw aokxk;z c ple is left aft;wc9x. kzk z3sqy6,;o)n gk gaer 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 nuohjah1i g8 +c8:ad e15g ck3orclei are necessary toaoeo: ghg 1 3ia+88jrccd5k h1 produce an activity 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 ofo9udw-szea 8) 3u7 hia 3.0 days has an initial activity of uah3z 7o8 9ed-)wiau s$0.24 \; Ci$. 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 duekvi3o/j. g5km to carbon-14 measured in a piece of 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 16mjokv / 3ik.g50 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 takest nv2g 3cw/moc; ;qm+mxj+, i $4.0 \times 10^{20} \; atoms$ 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 l50h gxirr2i1 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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