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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 has8uhue 5h9c.i75wm ywz 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 2ub7+ls z.3er7qey0pxbqho3m )qt y.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 consi;/gkwehx2z :b qirk 9.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 isf5z 5viinh6fx6 ht l5/j)x8np 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 fe 6tuq/dv87;gy36ym lk tz6p:*v oczdetermined 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 amra+q7 fd kr55tomic mass by A, and its neutron number by N, which of the following is correc 7d faqr5+rmk5t?

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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 unv zxo/sott;xt (id 65hw/w4+n stable nucleus, the atomic mass number of th otz+tvxn 6/d/wh 4t5xi; wo(se 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 1 ewli(ox 5)xq d-csc+3tya 8(:nvqyw 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 size2u.+ogi b7qrq.dv vg43,rku j 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 differe9h 5g t+;0i9f efmxoiint numbers of neutrons are referred +iemo950ifxtgif; 9h 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 nijgl)*pc*,x ( t kor3xuclei 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 define cj/ -y6zi *et0q2lpdkd 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 oj t ;gz s; xbsv(6li)wt1e,f9of its separate protons and neutrons, the total mass of a stable v i ,;zew) lbgojfsx 9t6;(s1tnucleus 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 stapz2 paz:ak 4/jble 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 v:z)v f/ykr/qa nucleus 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 nucleon7t5ugq7kmu ebg. .h d0 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.kt7dg4uphf -q7gu n*ucleon

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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 i l jc5jq9rr+;vs 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 adjacenty)asi6:kerp0dny78 ;ly mn 2t protons in a nucleus is2mr;6 n pn 7y8dy0:ek ta)lsyi

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrazluro,1u4 n +dte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrane*fcaa7j 3l(30pah9d j jzp/ te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate 0gvo6n: ;(9qr vdae2bb pzhg ic5u0c+

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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 ass f/ r2az97k 6jt1q sir9.slbgvwe3l8

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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 knownrsop*.3r-g3izf w 7ee6ctb 2t 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 to ae9b lo3g0pbn e6ycm+;

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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 equal- 3xpal0) 9z)yl5f 0kar ijkhh 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 unstwi;(vw(+e / sux6zfx a3iyp t0able nucleus, the atomic mass number ox tzfvi(y0+6is ea /(; pxwu3wf 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 atoy j* usl*p-5dpmic number of t uyp*5j*l d-sphe 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 - x;t*kvnn y.r 5t*sbn7Ma) 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 the susl/muz 45zf) k.bk 7.hna (taame 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 unst x-af(j quz*q(hcgq7f.cp9-9qfmal + able 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 th;,g4ri gn-tn8 iaf 2xge 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, what value is conservap 2,8b)b bl:wb.z:yl jhoin7ed in addition to electric ch:jlhpb ozy7).wbl :n8ai , 2bbarge, 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 radioactiy5b5z /ub99(s(d c7gqvu r5 8amesgrw ve 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 used. This nucleus emits up,oo.wd0uw hy:p zhwp 3g93, a single beta particle when it decays. When this happens, the resulting nuc,390zhudwo ohg3w, pu.: pwypleus 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 chv.9b1;cpo n lfarged 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 th x14723; pj c/4ipcdnwpoejzsat 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 reyb(xvg 0uu*k0fps 9a clb*( e 9c+vm7 y3oogt5placed 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 k,ke-2nkhfskm7sf 0 l2h 2x*hof 14 and atomic number 6 has how many proton2hk k,h0 k*7sfm2fe2-hl xnsks?

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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 numberv )r3d l3q;frv of 14 and atomic number 6 has how many neutrons3rfvdlqr) v; 3?

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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 0f(k6 ptw ,vfshty-*g 39, respectively. How many nucleons are in onv*-f h, t(ps0gf6wt kye 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 20 and 39, 1t c4njv4br u+8ig0ik respectively. How many electrons are in oneik u8v0gj in4+t c4br1 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 397w7: h f./-7 5zpw go0stvecri(wozo t, respectively. How many protons are z 7w/tspoz5-o0crvoie7:w.h (7 gtwf 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 v4n n1tleu9 q)are 20 and 39, respectively. How many neutrons are iq1vtln e 4un9)n 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 electrone+ +n81kfau los 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 carbon0hl74q76 rvrdw73hq h dtjp6 r-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 anz6 ukm ayjx:+,sq w2fb, jd61e 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 bindinw7hvwmqf:hze3ey60 c ;r.h38w q0 kor g 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 remove o l5puipur c)7lpe 4 7r;4u-haqne 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 dex 9big rr/bnmdg63sr3 bnv;-,cay. Its atomic number is no/irmbn,v3grb x- g rs6d3;n9bw

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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 2l7:i bfp k)i jkyt2 g2kc9i9 2tqb91ny49 nucleons. If it undergoes alpha decay, what are the number of protoki292l ypg9 tbkq2y 7ck:b 9j)itnf i1ns 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 deca6srv6fxk a lk4s0bj;7ys to a nitrogen-14 nucleus by beta decay. How much energy (in MeV07jkv;xsklas 66brf 4 ) is 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 undey4bm0 if1 di6s*4gvu gwu+da7 rgoes $b-$ 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 u.os69 c twpa/ri-d4fgn ip mf1nx8:6will be left after 100 year 14tc 8u69xfoa.mwsrpi/6 gn np :fi-ds?

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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 ez(6v iuo zx3* nekd4 ,v*3wmbis 247 eznui,* 36ko(dze4bx mv *3wvyears?

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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 cert glvqvzyu x;hnffn).: 0f:.vp1z8/yr ified 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 of t,eywi2x55 gu 9)lebmbr vzc 7)he sample is left after 40 min 7gbezw meur) 5v92cb5lixy) ,?

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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-1v hvt (e+pd)b837 is 8.0 days. How many iodine nuclei are necessary to produce +vvdb p()eht8 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 activitv fgqud0 5f5(wy of ( vwqu05ff5gd$0.24 \; Ci$. 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 /(b8 tayxr tv-3pe -x2lp u74zh ui,3c5hjepva 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 count,tphb/pja v r5e3-yzxc( l4vi t2-u8e3xh7up s 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 ta4u47xwfl1/rbnj9q xopt1 p) g0 xis4fke $4.0 \times 10^{20} \; atoms$ 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 takq-,cji1ov ; vgqf9 7b;f6-dp:o nat hre 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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