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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 thedw3g713+ok4 -j fsmv3kaakx6cj5f q w 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 isyush pz,73zr )ecb ;y5

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consisbd17: k20io*y4up. s;jqy 5sf k zaietts 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 the te m),o 3,tccanumber 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 deter+dt):w whv k v2u0qu3k45f0rweal7prmined 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 by A, and its ne; is m2d cr7gwy,6f,na/imw 4iutron number by N, which of the following is cor ;,/mf iisynr24,d wacg67mwirect?

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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 emitt2vdufru/n tn ms/j-5(7sln;b ed from an unstable nucleus, the atomic mass number of the nucleu2t;lnsdbrnm(nsv-/uu7 /jf5 s

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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 hgo4 b6-+qdezatom 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 because t6w:e zvy;-bhof

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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 ja5* 5bwtu4d0hf a5 ipof neutrons are ref0 d4bfi5uwjh5*5atp aerred 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 h-k(gkk uwv7 t,ave 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 defin*z.g0t 5djad red 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 tohi,crits( : 09f:oi pgtal mass of a stable nucleus is ali,i0sgt9 o ic:r: h(pfways

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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 nucleus, energy fv* r:x5kbq3yis

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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 nucle.7nlie30* lu8/lvi,r xq9 mz xhk(l wvus 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 nucleba ceu82 5c3a w2jsiwjh36l i9on 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 nucleonku.qvzq n x0a7*)p *ee*ga lalkv60k (

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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 statetvkh /uk-h 0 mfq97y q/lp0 ;z5eqfpl,ments 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 adjacent pt9rh *x a.ls,zrotons in z 9t*hxr las,.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 penetrz)1r avbemjb m ol0z+ /;(0 0zaf5yxxuate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrat96vy wfud x)n5gx5vj3wk ..ap4bf z m8e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat*fpbkwt, 35ilr lu 01yx-ug4 re

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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 aysl(z:s (--e*9xzasb h b/qlks

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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 ecq2+i mb-z5w 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 attrac. ub88b okzs2cted 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 c 9v)(rij4mdw-q hmg;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 atomic wlyee 8welrk pkgx4 krw4d3kg5r-v: +83z*/ y mass number of the nuw/-8rlkv48wg3k*rl e 4 e+ k gzkryxwp:d5e3 ycleus

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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 unstabl(bm.*fn0cit ja, aoqstb o+: 1e nucleus, the atomic number of the ij(o ,b1a0qtons*+mb.f :tac 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 - Ma)qx938sh dee hsq :n91i 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 same as a gammakk4u323ubf en 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 nuclb,qqark 4o/+neus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has the8(m6 k:e8n z 1s3wucte muofp+ 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 conserved in additdg:c aa*o-yr3 ion to electraa g*3c: odry-ic charge, 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 as it de+g)+)mxin ukl zjf.e z76rdgsj :w+u:cays?

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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 em.a*x d2c qioyx2 wn0g,7/wm zcits a single beta particle whxo7a2,xcin w.mwgz* qy0c/ d2en it decays. When this happens, the 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 c1d;9qhsihf kh-j5ge+urve 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 liquid hw 95zr6;vq sfb3b snc3ydrogen 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 b9la u; w(,qb/fi( kpc;q.fjtqeen 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 atoj n 0,pkdt(v/,0yz rfgmic number 6 has how many protons?d r0(k,,ygnjp ztv/0f

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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 many neuvpqx 4tg0e8k 2trons?q p8ge2k 4vt0x

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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. x :vg e3h,2eskrk9lu8 How many nuclvr3 xs9ulekg8h k2: e,eons 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 an2t) f 5 m0bm,6ex lj5kv:puhhrd mass number for calcium 39 are 20 and 39, respectively. How many electrons are in) mhh vk5,l 6 pmuetb:x2rjf50 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)a0oqj:d 359umpakzl calcium 39 are 20 and 39, respectively. How many protons are in onqd)9k:3u 5 a0mopz jale 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 and 39, respectively.m8hpvi vulj*)u4e0* t How many neutrons 4ie )*pu 8ultjmh*vv0 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, neutrons, and electrons srv ;( +hydmd6cs,gn-un* p*d 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 fdocux3 ,5ry*s ),ms sthere 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 an isotope of mass mfs;/ z jo3rdn-(4 dxhnumber 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 e3el+d+z8 b:tvdn2;nm)etp crx6ylu . nergy 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 d gsxw j)4(ndyz-sw) 2to remove 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 ul0. vd,c+)u(t-i* kdcav vy-if f z0kgoes through alpha decay. Its atomic number is now+)uuz f-0vd,-ki.vyftkc *la0c(vid

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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 ifds0h e+c ;ld*i 5j 3sin99njet undergoes alpha decay, what are the number of protons and neutrons, respectiv 90n9s+*lec fni5jsh dd3ije;ely, 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 nuclenofdqb7o7eph k,pe vm/ed6uxh,)-/lii 9z-:us by beta decay. How much energ k7:opeb v7/ezdn/hphf mquxil-i e6,)9, - doy (in MeV) 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 underh dodb ju7k *kapk71u.0drd6k.6 7cfjgoes $b-$ 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 zb tq: gw5e:,u45 years, how much will be left after 100 years?w but q:ezg5:,

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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 deco 4wy;oc;u ca:qfsjh,./sq yy0nd7 1z ay this year if its half-life is 247 ye:,;14 du/ss .o7ncaohc;j yyqf0zwyqars?

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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 atarmc9 wg+ v neh) 7;ekl+t+e.mis4; ie $10 \; \mu Ci$ 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 frayz+5xzgmmj/ s45 x65xjb4jjh ction of the sample is left after 40 6b jxjjm4x/ms+54gj5zx5hzy 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;u6c/p3pydjr4mka b ;jk.y 9a many iodine nuclei are necessary to produce an activi uak4bam rkp d.;py9y6c3;/jj ty 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 wit8wyeigh ( y-l. 2 pqv9:bnt;fnh a half-life of 3.0 days has an initial activity of .p:-lb q( gni;tny yhfwe982v $0.24 \; Ci$. 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 a wooden ct 2crzdvsz4j;)m0pg f dyjb99k;5:ypasket from an ancient burial site was found to produce 20 codskf9zj 5p4g9;yz)r2bvyj p;:md 0 ctunts 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 , nlx 3qe: xx+ojf0ei6$4.0 \times 10^{20} \; atoms$ 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 (kq )8py 3lkny$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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