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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 lea6 (tnnb3uo v(d9el:a ust 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 1dau/u 3kgtstir;1- * xy; 6bgt4aobqis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus con0l*kb qh/ 4 rivl)n3rtsists 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 determinexn:k-ec6bwp m.p/ qtq1)o1f ed 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 t+(ohkotfq.w7p8im :lgj-n6 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 number is given by Z, its atomic mass b-wwq0 :-hf whbjc 4yd)y A, and its neutron numberbf 0:wdw- h-cwj)4yhq 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 emitted from an unstable nucleul;9dfmnk q91vs, the atomic mass number of the nu9flndk9 m ;1qvcleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protons0qx vsleox9b4 *hfnd-w( c ov1qn3* 8t 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 t6/75hr bmq /ogs+ucq che 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 number but with different num05-2glmf vx bsbers of neutrons are referred lx2m5bfs-0g vto 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 nucled+z3fyf/x72ueyg y d v; hr9,wi 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 def+(ochwvgi jqe,8 uc.5ined 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 neutrons, tavwa ;i8a;,ld he total mass of a stable nucleus ;;iaa ,d8 awvlis 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 stabl:krm6 c3vt tf5qavc (+e 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 nuclee0jub. tc3 o5aus 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 nucle6i aod pdir9c7 u(yja9oph9nk3z(:, a on 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 nucleoe9 b sq7wd3;uyn

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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 st2eagl 1 /r+k*yfmv+ 1z7ytlpm atements 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, the nuclear force between ao oyd.7p/o9 6z/yzdrfdjacent protons in a nyp d.6o7 d9o/yzr zof/ucleus 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 penetrateua 6)xu(xjm *d7j 0uvk

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrated.m5b gyx(j1k ci oe79l)t9ju

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrah)g nzf qd+-( 755jvsk ghf7pste

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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 ast/ qff1g4r y.s

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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 ksb:n a o9vdd9ew m):w*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 will be attracted o:7e8/gfnzwer. anvs3 uz,yg vq*.) 0sqd2 wbto 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 b0j-anbdb-y;rn;bj3ez,x h ,an 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 atofv 4fk b-1cw4omic mass number o1b4f-kwcfo v 4f 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 atomic nuy)xwt4(z)qfmm4 v e*n mber of xzfm)y)t 4mvn4w(q* ethe 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 - 3fu3v b2hvgf 60bwa/ uMa) 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 the8 tn8)kt ;cx 3vwaj0rvktk7ndi gi-g bj9 f.53 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 nucmwt yp0;u4q;u ,binzq7 .6pvjleus,

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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 av +4pm 63hop:pwaa h *d3k9fumost 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 addition - mc8x,x gd8x0 m 5x/(cymgocqto electric ccycom(88g 5xxmx,c qx-gm d 0/harge, 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 r3hfw2wo1hufm5v6fi; .b/ ibas 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 cch7/liu r: y+f8 fg ug2b-j7r c10rohused. This nucleus emits a single beta particle when it decays. When this happens, the resulting nuclucifg7 h/hog 1f:80j cr-cl+ ubr7r y2eus 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 th wv *keuauwp*c(:aiys8 7y30j at uses a magnetic 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 thas)ckj* d a+8vst 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 by bubble8gjre tt(a a46)p roj,a1z3oe 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 number 6 has how many pro2rcy;s: h+i9h-vt x jztonvtxhi:j-;s9 2rhyzc+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 14 and atomic number 6 has how maj/b;egfj +;ti4poru s3d5o,u x(j rrt y8/3ubny neutrodr8rxu/3tu5ef;, 4+3oouit(jj;byp bj gr s /ns?

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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 20dne - qdyjssd) r(5m592h w2qd and 39, respectively. How many nucleons are in one ams(esr5 d2qw djd9d hq)2-y n5tom?

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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 c mv06hi/h*1axx f.cdzqf gd ++alcium 39 are 20 and 39, respectively. How many electrons arez+/ aqvdxhfhm+0 .6f dgx*1ci 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 fokhzijwi,q1 +a;)3kg q. g.hiip a0 rg:r calcium 39 are 20 and 39, respectively. How many pr jkh0)3:khi+1i .; ,zga.pag qrq giiwotons 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+ty -mmic 5/7h 6qhbgsor calcium 39 are 20 and 39, respectively. How many neutrons are in oct7ymi6 5hm/b q-g hs+ne 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 41g8 0ih a,kw )xwr/ l9q*qpjb0y

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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 therei2n lhuam;dj+w9,6w b 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 has at74- /difffo sn 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 enerw+.qa a z h.bfg5)ee;rgy 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 remov13.p o /ius sdude +1 mkxrjl5ig9u.o44mi/yke 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 gwkrn46 tnd,ll 4g u6s,oes through alpha decay. Its atomic number is nw u4rgl4n d,6 ks,ln6tow

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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 undergoes alpha dec-k6kkgs tn2 (hgq/ ;ooay, what are the number of protons and ;k/o -hong (kqs6 tkg2neutrons, 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 nitra*+ 4a6c8/aly ca 0w rxe6uxxqogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-140cxxau/6alwea 6x8y*4 a crq+ 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 numbees(yp :fc:pg87o 7bgnv2z dm9l39 miqr 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, ku l*wd v1h.o;how much will be left after 100 years?ol v;*u whk.1d

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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 year1b+v (nes,ldkfx *z p)6w/xojxo, )lp if its half-life is 247 yjv p,xl lw+6bo( )sp*d,1z kxeo/)fnxears?

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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 certifie ws, f1hdb4.fgd 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-h4t 3 t,hbeu.tlife of 10 min. What fraction of the sample is left after 40 miheut t.3,b 4thn?

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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 iob32 znd e3k7rhlb/ hj3dine-137 is 8.0 days. How many iodine nuclei are neces lrn2jzhe k3 73/b3hdbsary to 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 y 95vu9wifi8 jwith a half-life of 3.0 days has an initial activity of j 5 i99vu8ifwy$0.24 \; Ci$. 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 measurewem,96o uln2ua d i)2hd 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 yea,6)dnal uimo2wue2 h9rs. 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 takefbfv*e(p5:mjzs3 6)u g*z wr 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 takejo+f:.-uzyaq3 c :nm m 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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