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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 ham6yj qsakrk ) cd,z: +)rd7n5gj,7s pks 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 isrkz6 d;z yxttq9/ b)*;byqio,

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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:iwv;2 pef18m0pe v1sltca3glh2zh8ists 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 ist eqt;-.h;x zk jvs5/t:v : lo(rjh3cs 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 num b9fm;k vzo53hber 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, ak b0f gk 0/jrm v f2gh8;pmh;m7nr6r3and its neutron number by N, which of the following is correch 8mkr p j rh0b 37r;gafv26gmf;nm/0kt?

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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,:xbq1h)upz(1 d t*t s v.bfg3e the atomic mass number of theetbsg: .dtu f3hqp1(xbzv* 1) 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 any omd1 :*fe gdk0-2 zdz8thyn( 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 96yss wvzf*rmo3/ f)1fv,y s bbecause 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 witpeify3 lzy j 98 ,/eumnjlh7*-h different numbers of neutrons are referred touj, jl/ nyep-e8lm*39yzih7f 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 nu7egnbwb2my( x eq+t/w4 , a;v/9fp vagclei 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 iopqy *hvqu5v-na 5 mjb5 p +a7:57cfecs 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 and neutron j sjz0+)cte)ds, the total mass of a stable nucleus is al+0 e ztj)sdj)cways

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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 n; gsxe4 t jxgj5x29n*fucleus, 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 s3uwxx2; aw(.*6xko izy i0 cznucleus 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 nucl,s7 yy 0nq7r) wt/ledkeon 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 nuckz+ni8r in34gleon

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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 st 12s+8i 1ojmyf fp(djdatements 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, tf4h- /-o2x ,/ m ia zya0rgskxs.bf*erhe nuclear force between adjacent protons in a nucleus ig/ah k*mz,s- rf.sa40/yfoxbi e2r-xs

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetzn2vhu*u5aw:eq xvym( 1y2*urate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrkg*0p k: jpqq*ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrhc*4d3xoud at.gj i 6)ate

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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 kno- qbypulqr: :)hf-2vg+vqx v;wn 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 rz(ipspr4* z;known 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 ao bqi6nr1v0htx;vwctl272; k ttracted 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 atomi/4f osejo+q 9jc 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 nuclm hf/2(si;p pslelu4/eus, the atomic mass number of the nucl/lu;4 plsf sm2p e/hi(eus

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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 from2v7mc; mm l akukiflp*/r(75obn) (bn an unstable nucleus, the atomic number of thenb;( au7lvkfi*c2m 57o/nplkr m)b(m 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 -.ttxy*; p xq6b 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 m/8hufzyz0b p7 ost 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 emiq;r4a2eeqmo qyven i .)9 73octted 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 mzmt2tm;e u5t de2 ,l7j1 z)ubzost 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 de-(upih a oh oq-5mu)*icay, what value is conserved in addition to electric charge, euqoo a-h5 *-i u)ihm(pnergy, 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 substancikl5e: rl)9cdtr4 )cde 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, carbonk*)fow5a. e+o aog7xncnr:;je) sk6m-14 is often used. This nucleus emits a single beta particle when it decays. When this happens, the resulting nucm)f+7re;*kxa ng 6o:snk ow.ac 5)joeleus 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 fient7 p2nr- wzvb)y:0cbu2 0rpgld 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 detectorgd62udo xd2 h, that 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 repy a(8hp8s2 wy (gy gm*3iil5fblaced 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 atomic numbe+ 14vazxp xi47; glhrk5tv kg3zg3b5 ur 6 has how many protons3k5h btga 7+ u;5rxxi4p3vgzv1kl4g z?

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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 num36 *:z2ohhwb qcjmnw 0ber of 14 and atomic number 6 has how many neutrons* 3no0 6wjc zqhmwb:h2?

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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 20w6.d(shazh*mc x gc*d6:;sbj and 39, respectively. How man: *.sdb(c;hwag6zmj*h dx cs6 y 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 mas s44o zo8vhlnwa :t2 0cpml,k,s number for calcium 39 are 20 and 39, respectively. How many elon clltz, hw ,vma4:42kp 8os0ectrons 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, ;oq 0zyhc:jf6g xt q /m(t6f 6fndk5w5respectively. How many protons ar;m6g(zjy/ h kw ofq6ncx0f dtqf5t5:6 e 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 for calcium 39 are 20 am:hcq d*7boa :nd 39, respectively. How many neutrons are inqbdma: h: *7co 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 electrohyh5r6+:7yg3y cbvz gns 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 carbon-14 n utz6mscmo);4 ucleus?

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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 numbeqgerk w7t:.( h:pte5iyvw8) yr 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 ener((nle yc- 8tpbgy 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 o .pb7lst /axe(ne 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 deca1ypg6yswqs*wg ij2; (y. Its atomic number is noip gss*jwy12 w6q;( ygw

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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 u4*gg z0 ba: (d/th+vo5l+rry4 zggndvndergoes alpha decay, what are the number of plvgz +(gby o/gah*r nr4g z5dv:d+04trotons and neutrons, 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 decaui+:d wo3 n.hpy. How much energy (in MeV) is released if carbon-14 has a mass u:+w nhoi.pd3of 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 cw: u 3e5,6zrkrcz2yr6 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 k(.n 21;)ltk*c9e ge rodxhf tmuch will be left after 100 years?xcen* 1 o)2k.hgrfk(tld9;t e

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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 n(se/icixw7vr 2 0z .9ij6 snuan atom will decay this year if its half-life is 247 years62ni w7cssi n/ erv9x juz(.0i?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wasnxw2 wi(. nwnp6ye7bfj: (n 8r certified 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 sr ) 4xkfoll7d5zi rc 6mnxv*p-;2 0vja half-life of 10 min. What fraction of the sample is left after 40 min?vvros0 pj)xcm dnl6*- ;z 2rfl475kxi

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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 +fpjqi/xauq984ay* w5hg.qy-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity of/+4yx.8a f jhiu *pygq aq9w5q $1.0 \; \mu Ci$?

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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 daysjf0oy( 8m0,z gpu;nkj has an initial activity of j;gopjmf z,uk 08(0y n$0.24 \; Ci$. 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 carbonm;b: w5txa;ueqp.*bo -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 160 counts per minute. The half-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimate th ombtu:b;w.;*peq x5a e 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 taky6 qp 3oq- oxr*xu carjht;+0(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 a 05.fw+i ynnu9m qk1az$4.5 \; Ci$ 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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