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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 lef. j;2em,tc vjast 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 c10ydgxr)g5c fr34so 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 zzk 5qtpo/nxe9.tw.* 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 determinflz9tg (./9+gfcobx a,ofu8p2blvh(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 determv gu0 zs9- (objpssa; arufix48 01fi-ined 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 givyv5./ qblq;+ufp/q yy en by Z, its atomic mass by A, and its neutron number by N, which y pql5b;y/q .y/uqfv+ 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 atoi kctyi i7mh)o5 g4p. e(wf87umic mass number of thei7 (imiet854chf 7 w). oukpyg 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 ig/qxl q.0r1u6xxs yg9n 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 size of a , nimlv z n8ncko(q27*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 with8t+a(v ) mxyv:+i)2otswmkg d different numbers of neutrons are referred vd sg)ix(vm+:wa)o2+ mytk 8t 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 haev03g*zotv 7,wt ijk6 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 zd:p p y7p9f1iis defined 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 total mass ov8i1l2j zb2c1k9 g,y vpiw1dowi1d w *f a st1c*vv dl22bp y g1k 1ow8zwiid1ji,w 9able 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 stabag;h lmw,zt8gga: 6-xle 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 nucl k3/x hc*khcu6eus 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 nucleon iqd5fm-2iy2uk hbg2g 1s

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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 nucleonjx)d(ai-(+ hhbkr, 8wm is:ni

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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 concernit :q7enjqn:a k(f0i *(l(vofpng 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 admgygm92f.e,y 5a x 1jvjacent protons gfy my 2,ja5xe1m.v9gin 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 penetra /b/md0, h4, t bm0lten248joks yanuxte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate c9:zr jvjs;fq.u x,qa+c02h j

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrataljqd y mb468xsa ,/.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 knzqh7i/+-nf erown 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 knomy903p oj;fh ewn 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 attractn+4* 1 7(iz p bx)fsl*y6-cdttekkol ced 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 mass eqe.hpgmlva*l h28p7h1nnz odz :s .uqi21c5 h .ual 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, /t a:/-ui xehqthe atomic mass numbe /t:hxae- i/qur of 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 nucleuswscvr 0uec )1g09y z aaai (atci;v1-9, the atomic number of the nucc-a9ts9 ; 1ve0 )caui1zyv 0igw(aracleus

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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 - M4 rv 4xk.zn4xia) 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 6wi d0*rv;hpfit-t .hmek0a5 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 unstable nuclw2y3u;;ork ixog1dak 4c7g y)qgm99 l eus,

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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 hr *r(q7p /fe4ss9rznbl .br0most 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, whm5n k7,ky doh(0 rba3sat value is conserved in addition to electric charhbd,0 rs mankky7(5o 3ge, 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 lzobhq 8ym4mz7j u99u 3v4uj.a radioactive 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 atr)xayv5ocv nc9) 8;h single beta pvycvc 9n)ha;) o txr58article when 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 curve charged partks /v90yf;u ytb ok, .r-x)sqhicles 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 usesmqa1)m(mt eto h9n8( v 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 be7p1lfdgi,8c*nm-eo ( *en calen 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 y-ez-1po 1 uwnatomic number 6 has how many protons?u-y- pzne wo11

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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 neutroksqd. i5kxx(gi w-ksi4) no 0/n(gs. iq50s k x)nk-xwoi/ ik4ds?

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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 numbe- bftxdh *y03ir for calcium 39 are 20 and 39, respectively. How many nucleons are idbi*ytf3 -xh0n 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 mass number fo7ee59xk2b.ww z 5w)gi cp kl*or calcium 39 are 20 and 39, respectively. How many electrons are i)iwbe9wp xwk5 lozekc 752*.gn 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 39 are 20 and 39, respec ;0 dep +3hndgy)mdb,j.et(rttively. How many protons are in one atom?,ttyjb )0+rde(;ndmd ep gh.3

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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 3z-rhb/m/5cpbhh 4i p9v l+b1q l:sr -x9, respectively. How ma1/bi cb4 hxp5slr-hv 9/:qlhpzrm- b+ny 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, .-hhfxu 62v g4n5nasc the number of protons, neutrons, 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 areaghfalkwonq 2rz 1g(p*k 59 i e1+(:rw there 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 nu(*p)ljgb2g1,dg3x cwoh+e mg mber 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 o)( wpy;mh eo8i9c ;cnuf $^4He$.

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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 )vs7cje q( n8i +umhsj6n k-u0remove 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 goes througq x iqnny9us7;5/m u8nv5d dt2h alpha decay. Its atomic number is n2u mxv;tui dd97q 85y5nqsn/now

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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 nu5v9 g i nib6ay+(8k*8s qe*e ms)xcwmncleons. If it undergoes alpha decay, what are the number of protons and neutrons, res6gbxn*m8 )eainw*( k 9q 5+yicm8e svspectively, 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 4idze;jmw(8bn4,h mbk a s.f u+qwso5ps o31,to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.00en mzds 5(ufow4qai s b,8, 1;s.p4whmj +kbo33242 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 numb hcekbct 85* m0dlkm8w;h97daer 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, how much will be left afuy zm1mo (lvr)y e9.qmsxi/0/6w rm- nter 100 years9/( wnylmm6 1-.)/myx0qmzovrs ei ru?

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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 a hb*- n(m qrc-xf/ y3to.hy1tetom will decay this year if its half-life is 247 year1( h-ceh.t m o* tfnyy3qx/-brs?

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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 certi 5sy,eq* cqew49n.4- ps-z tdffep5 ynfied 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 fractio .u jv 33kx-x 5;hhbb6mt zgf8psi4,ccn of the sample is left af8chphf-xi 654u 3b cj kgzst bx.3,m;vter 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 irxf 4.z(u s0lzz/pt0)sj j;ub odine-137 is 8.0 days. How many iodine nuclei are necessary to produs(z /sz0 l0zj.jpbfxrt u4)u;ce 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*3 qqmp : kg.m9)wemjg half-life of 3.0 days has an initial activity of 3 mm wqqjm.*gpg: k9e)$0.24 \; Ci$. 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 casket fromzn(wls c cmx4.6 2v6us an ancient burial site was found to produce 20 counts per minute from a giwss .vnxc2zum6l(4c 6ven 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 n0/m8/hkzu .nabknq,$4.0 \times 10^{20} \; atoms$ 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 anh1kvwbt nb(0 81clj : $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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