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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: 匿名未登录  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 mass?oxkh.xln156qaee.t5l 6/sq k

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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 j2fn8e7c)kqu/vr l y5 is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus con,jl ah4)jsmd: sists 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 determined by thei3rl, j wcsl )hq;9j8z 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 ecf7 /,s1 ccwuthe 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 buqsux/ey(e, 1iq2*e sy Z, its atomic mass by A, and its neutron number by N, e u(i,s2ue*eq1syqx / 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 nucleus, the atozi/ r(rfvxjnp 67c5c:p/ ;q xhmic mass number of the nuclcf6/prni r; h7 5xpjqxzvc(/: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- ntqp+zch* 9rqj 96yl 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 be 2vvt0s1syrnmb ;y52b 8vdtg/ka3n n7 cause 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 atomic3c ccq 49xxyc; number but with different numbers of neutrons are referred tqcxy3xc 4cc9; o 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 nuclbobjb)c ,j dzq.:tf3,t8knv 1ei 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 defi :b/jj.bj c+1 w,upaicned 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, the totalbjvayzjidv0p -w+m,l nh( /8),r,b pe mass of aij-(,ypbnj e8 p,mwrl0bh,z +v/avd) stable 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 stabl0tno4nlhgu7v* u8n7/z z2euj 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 nucleus is cony/ do:3ezys;t6u a h:dtributed 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 nu dl9p pcvv(c72 cro1y;cleon 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 n :p3l)xfy8vo ydn1nvvdm 3 9/ducleon

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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 nuclear force it4c b;ixnm(foz:gl r(788(xf q gt/j2qqe (grs 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 adjacent protonkok:b i qlo+/3s in aoi3lbo:/+kk q 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 penetgevw8 5tdl60t 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 penetrate5;l r4byni,b xp(p-)0j dbsttuf4b+ frv 3 :xd

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra-q6nrapr 0tjjc( q8 o(te

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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 knownmbh/ el6x(d;gii. lw; 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 asx,4 sx-n7 qogaha-:qg

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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 at - eh8owchjxz2n-ra ;7tracted 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 masswjxvs f,+r2 p. 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 mass nu glh/ clc0lz a/cz3;gx+ k08:rm :bvntmber of the n;:0:m/bx/h0v zlzlrct g8lcc g a+ k3nucleus

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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 go3h,us o8h5bhj )ef:eywzw6x0 0t 7ois emitted from an unstable nucleus, the atomic number of the nu0h thwwe 7o,8 6xjg f)ysoh5bo 0e3z:ucleus

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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 st*, pv if/4ah:vqy4c931.5 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 nearv(izp;th y; s/ik4/ivly 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 unstablevr85*8d 6i.f0n/etfsqkjv0utz jf0 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 the most masmc4q d, tyoh 3p-+upj)s?

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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, wdh adpjrd 6ar t4,ynx .24d nkk7yipum+253;khat value is conserved in addition to electric charge, energy, and kj d7d.a5d;24 kyn2+itpdpum63an yx4 ,hkrrmomentum?

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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 substanceasa( nj5j wx+5m7 g1pvin8f6e 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 nucleus emits a single beu 7f c m;g.1ictpt3et/3 b3g0.lgf erzta particle when it decays. When this happens, the ml ecb ttgfg 3i0up13e/ ;zt.c7.3fr gresulting 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 md* wzk:t; (vm*(y/orrr yra1a 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 that uses liq2 -f fgmtcm0)auid 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 replac1uf (h dmx.;l4sgmo- wed 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 number 6 has how manylm3;kv usuyb4u27ku vr qt4q7ip8 2p- proton8p4;vmk rs47i7v2 3q- ukq bpu uutyl2s?

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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 mqd (*w+(ipgxj ass number of 14 and atomic number 6 has how many neutrons? +(wiqj*dg px(

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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. Hje0gzhty: k z-9u 2 ,w9eddsxdziq0 6,ow many nucleons are in one atom6e- kejtd9 z,i:20 ddzu90 gyqsh,wzx ?

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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 calci8vrsl .3pfwb4tc. xkj. 2om+yum 39 are 20 and 39, respectively. How mf3 8l+.ctk wyp.ob.vmjx42sr any 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 39a drj*bv,,uk+ r;hlo/ are 20 and 39, respectively. How many protons are in one ato,,d /uk+or* r;av hjlbm?

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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 and 35k bswpiw uv q kt;iv8hge-0+;8lhy.49, respectively. How many neutrons are in one atq0ets+5w.vbul 884vwpk ;;iigy-khhom?

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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, ai4 mku:w 44rwand 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 t7 wm9dk qim0/ihe 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 an isotope of mass nue9/fcz3f 5t .oxhyiwj/(scz+aqx9 7 bmber 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 kby(ww(p.l07;te-f y9 x gjmqro23keof $^4He$.

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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 oebs3e*pofyady ): wc z/t143;ajzl v9ne 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 tmrvd lpflcxb/ + e84h */0kb5jhrough alpha decay. Its atomic number is nlfp brkxb/ehdc l4v /j5+m8* 0ow

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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 decaj-,xn;jlg r (k4u (inmy, what are the number of protons and nejl( x4r(mg;,j iuk n-nutrons, 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 dd pms;t z.9of(ecay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.0030s ozd (;m9.fpt74 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 undergfpool3 6g.3kxj,r h0i oes $b-$ 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 lr i9o(0i2e uq4sq.rhpg d0/boeft after 100 years?0qir0(4dbe/ gruo. 29hq psoi

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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 it )nxl 7eb6swm/s half-life is 247 me/) b7xwls6nyears?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wam*g3vyn/ hom(iw3 )ubs 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 a half-life of 10 min. What fraction of9 o4-)xuotgnm the sample is left aft xomn) tgou49-er 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 nucl;gj/zkj 1 o6xl d7ei7eei are necessary 6 /e do1gjjxzek;i l77to 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 substanh3*h0t- -dpctw8 vj ckce with a half-life of 3.0 days has an initial activity of c djtkpc--0w3 *thhv8 $0.24 \; Ci$. 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 duecw :fe7e;t0-z fun-jo 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 c7eet-0fjf;-z wonc u:arbon 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 -. dbw 8kh6lvi$4.0 \times 10^{20} \; atoms$ 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 auc;zx 6 9uw6es $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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