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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 has3 4bgfs -xk+dg 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 ifev2u,d(bu;, kmk lp9a 1zmu,7 mc-p93jq cwns

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleuszc:2 sde0 )veuz l7)ep consists 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 zkyq t4ueq7k1z+l ()qdetermined 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 thetk st3 :pa66,ur 5pdiz 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 fedza ccs*tywnjc0 :0(h022ngiven by Z, its atomic mass by A, and its neutron number by N, which of the w *ts cn0(0yzchjn0f: 2e2dcafollowing 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 fr e3g2 usks3-erom an unstable nucleus, the atomic mass number of the nucle rse-ug3s2ke 3us

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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 aiknnp:z1q f0x dz/ti+ gvh(90tom 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 w a6wh0 1gs4yml 0ld*psize 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 numbers of neutro .gjy15nc-pc rns are referred to asnc5 1jg-c.ypr

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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 ha e xdce-i33)mqk5 von(ve nuclei 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 definedqi*oo lh.k9 4 5jr5(7xsvbxeo 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 protjwkro( z9,9cihweh 3a919 qabons and neutrons, the total mass of a stable nucleus is alwayqw(ji9 oh9r9 z9eh3 c1bawka, s

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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 eb g;3n:0-:wm wue qxgnucleus, 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 i*k d0 6kng.e2q uhu xu,pu h7sqq/c2:gs 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 nucleon ismq j rrqy *ha-suqpb:,0/u75p

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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 nucleonutu+,vg: ore,

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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 thenknw*r mf*b0y pc2 9;z 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/uy*kc . crx/d adjacent protons in/u/k.ry *xccd a 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 penet lxt7 )nr ji0g2c8i d8k(abl(trate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra4x :d3m up hs4/h ,ipszq8g,zyte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra4rfpp ob k3 uip/i4m(+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 known a/6mhcqd (21cu k *2jr edpjzt1s

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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 as)ws(/-a.k o6ns*: xz kmi ot9rle cdh(

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle wilkrdex1s -6( ful be attracted 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 masb(92zs y0cxz js 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, thevo y /j2-bu+ub atomic mass number of the nucleo yjb-b+2uv/uus

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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 unstab ujpyk7 ft(7z1le nucleus, the atomic number of the nuclep1 ztf k7(ujy7us

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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 l-at hdymp9 5, au6m,fgux1/d931.5 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 followingbjgyns,* qqo3k.rum 7 v er):7 is most 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 emitted from an:.y+7y4ny4cqmnsn;h wqm( -cq sf)n m 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 most m)2; 6*jsmvnzg 8dczceass?

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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 tot f uc-8.pbur0 electric charge, energy, and mo.8c u-0uftrb pmentum?

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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 radioactive8a4rae+xh3ti ;yaha) wjuq5r n+ t6 x/ 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 nuclo gqdjpme 7lvarv*: (du+-0d/ c:ntesv0)+a n eus emits a single beta particle when it decays. When this happens, the /vje :edocp(n v*gu) s7l :tamrqv0+ n-da+0d 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 field to 4v5,cw3gd0b a7z*7f)6 pxbzt l g35qqzytml fcurve 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 use-ercbvc 1*j(sqj-* q. jj je t*fvzp(0s 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 beene ohsb *uhk d*o b8/48is6m4oima03qg replaced 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 nrvb k.6a g/b5y4rl*r-0ak) pbcrck + how many proton va5kbkb)0/ykrn-l6b +c *4.r r pgacrs?

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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 2r*jl:fc0zpjqix7r : 14 and atomic number 6 has how many neutronsj 7r*ip f02qrxl c:z:j?

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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 m .fh * podktpu18:e1b qm2(pband 39, respectively. Howh(.bbfud p1m :2p 1*otekpmq8 many 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 mz7g(s1 i( f9qsf/ceps ass number for calcium 39 are 20 and 39, respectively. How many electrons aressg(q1z (fecs /i 97pf 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 fj-d9oqa*l7p v or calcium 39 are 20 and 39, respectively. Ho-qo* la7 pdj9vw many protons 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 for calcium 333 ) nxr,fhsfl9 are 20 and 39, respectively. How m3rlnhf 3)xf,sany neutrons are 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 number of protons, /7rp oqck3 91k e;narqneutrons, 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 then5jk0b3tpwpn uc0 q+ f5v)pd- 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 nc*xy9vhb x : 9e;i5o/qxi5n avumber 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 ener0jjvm :izsb1o ac .09/tvz dy(gy 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 v1e62 sj9hx; +laq1vl p3tlloremove 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 numberd1tfkt6c sm1 ) 88 goes through alpha decay. Its atomic number is n1m1ts) cd k6tfow

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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 decay, what are di t1i bh9u-b2/f4veuthe number of protons anib2491-f iud bv/uthed 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 nitroq,r (e16ahabngen-14 nucleus 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 hanb(,r 1e6aq.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 underg nbe )mt3u. me3an*zea3)jj;eoes $b-$ 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 yt:tq(gf(2 ; hi: whynpear2i;q hp(h:g twntyf: (s?

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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 is 2fr* :eb eqb0g0p:mf7j470jf*q b0p bemg7:rf:e years?

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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 certified at zu46xhpm r 8p0 cs,6walo,x*g$10 \; \mu Ci$ 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 ac3 py3 l 1/ows-3bw p6pr*z hajehzf30 half-life of 10 min. What fraction of the sample is left 3a *po6-z 3jh01rfh3 cpl3eby wzwps/after 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 iodr( p jn6c1s1syin(14se ) wkprine nuclei are necessary 6y 1) nn s1s(pskjp4 rw1iec(rto 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 with a half-life ofcl)0b9 .ko udusrs4i, 3.0 days has an initial activity of o)irs s9d,uku 0c .lb4$0.24 \; Ci$. 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 duey8w4 qp y6sd6h+te,od to carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 268 p,y 6qe so+htwdyd40 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 uepg,r1k.8spe4m fbvy ,g)c;$4.0 \times 10^{20} \; atoms$ 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 74ag jbq+bji-57a 5 93vpn icypwvpn12 s cy,v$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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