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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 particlesr,n k,y2c,e1mm6pv zh 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 ieliykqpqq j7s6 ki 2dml:pa4 ,/285hzs

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi oeir*tw30sxa+6y alh0; s uia680)j bhohv:v sts 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 ixsst 1w -1h:nts 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 deter+i7,bnm 9 dw)prhav6vmined 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 numbe jn)fgt+,yj m.6xnb3y r is given by Z, its atomic mass by A, and its neutron number by N, which of the followf y)b+.tjxjm6nn3 y,ging 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 emis ed 8xbn6ff76tted from an unstable nucleus, the atomic mass number of thex866 fsnbf de7 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 protonranfka z :8i1. qr d,1njjz;/is in 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 nuclecu95 ak-sw(wpl lf:/i us 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 neutronsnhyhf7z7;g vstp( 1s 18wutg* are refefht18n 7;ggsp1hvs(y* 7 zu twrred 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 wi+7ni8o;n wk* 7bpa ayoth

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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 i9xc2mxquqp1 : s 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 separate protons npm4f80l ,upx and neutrons, the total mass of a stablefu xn m,04l8pp 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 to form a stablvvqt /yv)v3r8,* hmue2p -y mle 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 contribut b8ha- kd:y8i8gt/ y(w f--y odatdc,yed 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 isk + ls7a q8cda.5px3j qkap5p(

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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 nuclee +sbvh: s7naumb430eon

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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 concerning the nucl:s6ydzrr br j;9 /dn6,phz a9mhjea (+ear 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 +*/xwcd8kx zyom -om 6force, the nuclear force between adjacent protons in a n wodcxm*+x o8 6-mky/zucleus 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 penetrameq)afi tdl62*7jz y(te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetraji p 9u,tf5qp5te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet uxj2*) hhf(5vepcj( qrate

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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 e.4je5fm)hxyg( r4vs 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 asqtno vpc:b 0tw09 n4j.

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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 4l*gx6zonw2 +ul d3 pato 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 ato jxdan; 9;cl,wmic 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 m,mvi0ail ,d)mass number of the nuclem ,, viamil0)dus

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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 atomik j9*x ;co,fp;hlf/ uyrk-1wxh21f jccqh8c ( c number ofyjh1x r1pw;f cx(9f *l2;co/kcjc-qk h,8h uf the 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 931.58ttfnl 2ps/o+3:u3 oan kp-vv 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 thzcvv md ra l4di:xn24))/tf+**jqcvle 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 s ;g y1n7pt 4emqi u/2*4xfz,aotb nz(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 moo2 h*t n9g ybdddsr994st 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, w(lweq:e* 9 k/6b( qgeonsv* wphat value is conserved in addition to eloe 9seknbvq *(:*p qwlg/(6w eectric 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 rbmtkq qz 84)s+adioactive 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 uscc(nlk. ufjf/ ls(s)- on./ geed. This nucleus emits a single beta particle when it decays. When this happens)/nsc.(l . flknu(ojsg-ce/f , 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 5f4-zcpm ovd;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 useo7v v t2n/12 u1b shjopxoa6m.di/rp0s 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 by bubblxd3j*/dtd )are 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 atomic numbxvs wlq7 1iuiw1d6pp5 *i*z7xer 6 has how many protonqz1iiu 7 sv51wpwlx*i*7x6dp 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 number of rq e gukzz llec3g208 g(;:do814 and atomic number 6 has how many neutrons?reckg :o88u gdz gl0qle23 ;z(

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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 and9fbw wg1m xw43 39, respectively. How many nucleons are in one wbgmw91 x34wf 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 8p+*, m sfsqdny/nv s720 and 39, respectively. How many electrons are in one avss,d nq+s*yfp8mn / 7tom?

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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 76 qxcii)td2k are 20 and 39, respectively. How many protons are in one attc)i7 qd6ikx 2om?

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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 cqn*. qkf4w/i cc qn)1 kt(d9n3(luo8 vmhqk2malcium 39 are 20 and 39, respectively. How many neutrons 1 khqtdm23n 9io c)n (vqnlk/mc*4q(kwf8.u qare 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 numberwv/29p 4i5 ynv7jo7mq;fnoh+2 yqod+irq 9ju 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 in the carb y04e.) x ln t(qhwqoa-zf5ty8on-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 32,6ttt.sr9w y ,a

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the bindinryo 25znaa.vzt; )i39 lf.ypug 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 rem+kh fvxbjt+lc4u 7 h8,ove 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 nu a0,xykwx 1-lcmber isw 1yx-lx,ac0k 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 under-vj*3 , /(aa/lq3*bh4hua tus b: og-aez vrjogoes alpha decay, what are the number of protons and jb-lagvjv r/3 h3u:(4zau*qh b, os/a-a *eo tneutrons, 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 nuclw v(xhxk g0xo8: en*m)eus 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(we kgx*ox0 nx8mv:)h3074 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 , xc1z;km iuxt2*3 fxxnumber 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 be left after 100 y- 7zow zf9d*s)gjpan;ear-zoj)gndf7;s*z9a pws?

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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-life i,jxef(s bjo* :1zg ,jts 247 years? * :,(otjfz,gbjs ej1x

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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 certifi/j 3 vzm.cm0t k5pau.med 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 fracti a oa9 )c3(z fwj:daiftx6mu.4on of the sample is left after 40 f( ) aat.3:9aci 6jwxzfmd4oumin?

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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 radioavb;/6xb,ra bq4:vq mf,b 3wmqctive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce /3rqf, 4qm6abbwbvx,:bm qv ; 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 of 3.0 days has an initial activ l(t wzntmf,*2ne g-2zity of z(w22f,-tn tl m nz*eg$0.24 \; Ci$. 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 / )odeoyxxpdk7w t s 36k3..wxje8i j-a wooden casket from an ano.dk3x.dx 3kyiswp /xje-w 87)t je6ocient 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 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 take 1r;vh q0,,nfcx)gd6 f olcw.b$4.0 \times 10^{20} \; atoms$ 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 takol0j;:-9azb k ht jg;o ps .clm7gd11me 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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总分:71分 及格:42.6分 时间:不限时
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当前第 题,此次习题练习共有 71 道题

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