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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 7 qz-em6qmfe5 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 irin s:c5yf 1u7tt 2bo;s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists s5 uq(84df;b lereo2c 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 number ovl+ wxo(:wehhg3 x*x;pxtf -+f

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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 *fh1, oozv 3c h ww209imfz;epi2b ,pathe 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 mab6+ - (qjfa 6i.lxupbwss by A, and its neutron number by N, which of the following is correc+q -ij a6.fbubxpwl (6t?

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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 nuclxyg8 vld;rdwba v:-p )si5 47seus, the atomic mass number of thlpg7vsy v8as5 w x)bd:d-r4 i;e 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 in an atom qb yfvfva6l xg jgm*2u .ssi,*x15k gq(v.s/7is

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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 sizerb /sm6add2yf)e (17, rxnkwp 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 di (x f8/9kffwyqk yf*-bfferent numbers of neutrons are referred to asfk q*/ 8wy( -bfkxfyf9

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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 nuclpso ra4e.33fe)tx z.v.tm k3z ei 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 u:n-/wnnwy k-is 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, thet0/9: 4q quj wst1gsl7*;irnpa quh9n total mass of a sta sialnwg9t7 n4qj10q; :phr* u9stuq/ble 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 stable nucleus, enep dhuox ixh: rj)/;w-cxg: p15rgy 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 contributedahc+ ey v* b(jep40wr2 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 nzy 5vm0bow 27:o5ge*a-xzp kyucleon 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 0fb kr l-)qoedcb9/v1p))ghx3 a( fymnucleon

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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 concern7su lz4*0femz ing 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 betackwe e4n4v f)a4jmb;s1 +g yc-x*9pqween adjacent protons in a nucleus 9 nv1-4wcsge qa;)+f k*jpmceb ay4 x4is

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetra5:e0dr*u q7ipfqwh 3ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr+ ld,4 nhc*9k ;fwmmpnate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr(9pz,wtp) np6jnf cd4+fk3m late

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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 8jk,uchmp4y, known 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 known9te i veyi0k-0o6 jv.o 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 attra)ji9xkge57p icted 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 atomy 2sgk: xmxi5)ic 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 emittednori; p*v 8t:w,p2 zr0ve*l dn from an unstable nucleus, the atomic mass number of t,nd i8z or;l ppv*vew :n2t*r0he 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 nuc+1 qw2v ny oiws5zja3lg 0:dm6leus, the atomic number of theywgdwjz5ovm +160: n 3 lisqa2 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)ay vvp 4k,n j12 xu1bwu-b.qh3 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 m(o29l 3- ubhx(g +vvgisjpwp.ost 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 unstablx yr/s1al 27kie 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 mas8p4z p cqju (g9me3l9os?

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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 as:, dw 7p( (.q2rn+ixfuoghivddition to electric charge, energy, and moifpsiq(u .xh:v2o7w nd,+gr(mentum?

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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 7fn:ooyi9c9 qx,1ki ja 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 eb ;v6 jfaw;*lused. This nucleus emits a single beta particle when lj6;bv *wea;f 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 particlaba ,4)kf:eux es 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+4vm w)l xrdoa j8x+q i-7 ;vukb95mdf 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 b /q*qs++g13ah7o; ipckd nczieen 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 nu xt(+ kg87ys9l+:cz*qi znw swmber of 14 and atomic number 6 has how many protons*xt9 +qwns+w:8kzlc 7gis(yz?

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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 6y5lpfga) e-x1 has how many neutrope-yg1 )xl5a fns?

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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 fo9 jfdf(en v8*o0bi ou.2lt f0qr calcium 39 are 20 and 39, respectively. How many nucleons are in one atom?on.of9 0 2dqbu f *i(tvj0lfe8

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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 m(f mwe;wt/ e320 and 39, respectively. How many electre mtf/m;(wew 3ons 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 39 are 20 and 39,u+ zy5tkmi./d4aoqt/lal1* u respectively. How ma +ulyq./5 amtz/o 1dkut4* liany 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 39 are 2vh )w h;(l9 u7e9zckjqey 68bs0 and 39, respectively. How many neutrons are;b6 zuk7ewyleh9q89 sch ()jv 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 elec41l1b9v29v b6lkfovmc)qy kx trons 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 thjx8 i(.logt6guon17l e 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 num8jqdjujzv-.s nt 0s.)ber 32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the bindina r/yv/rjkxi.ya ;6q8zid 2.rg 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 rem*pa 68zp:snac ove 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 through alpha decay. Its atomic nuq;p +m.cpo0c smber is noopc0 . ;cqp+smw

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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 nucleon 8l4qs gg;9xwe-: puqqf+e2fbs. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, i92gpe4qu +qx qw feb8 sf-;l:gn 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 decay. How much 0 xsk p*wj- 3u2mpto (q.):llnsnl(g ,dwbu h*energy (in MeV) is released if carbon-14 has a msl,*l(q2ln:bx hmst(*u k.p0)j3 pu g-n ww doass 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 q0 a/2oo7zaor 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 after 10+2 ib mqw 7pqc5y;1ydt0 yearsyi 2;q15pw+dbcq y7 mt?

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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 thiz68k*zwh s fu0s year if its half-life is 247 y*hz8 wkz u0sf6ears?

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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 certifc0y;uw-c m/w1;1rstab q ohj,ied 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 the sampln 30p-j f5lcpbe is left after 40 5p-j0fcbl n3pmin?

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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 radi6bl4bn)zq x+ :hq z50arix rtvkio 4, 22lxg-xoactive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity vr5zq+b2 i0ot nz:khq 6b2-x44g,x i xl)a xrlof $1.0 \; \mu Ci$?

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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 anotc6,ti6 ckjk7l h:(p initial activity of l iokccjktt(:66 p, h7$0.24 \; Ci$. 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 of9uqp ,c3kryo 3 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 carbon from a piece of living wood produced oq9k uy33c,rp160 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 mzb1ikj/a,s8 $4.0 \times 10^{20} \; atoms$ 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 tak:e m,*/9epiflj7idk4 o0 qn)pee7e hse 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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总分:71分 及格:42.6分 时间:不限时
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