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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 has the least mdir c;)zs1-flass?

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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 issfr5sgc e a 6)au(4d83qaz(hb

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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 kj.nljzn+com jn ,5,vc-6,uj 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 determiney8 o+1e3clmhvm po/14zs, iemd 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 lj9uqmso-gz *5zd)3h q +ia7aa fyi+ 9the 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 4j pm+um* qlm4jsz lz2.. v6bhmass by A, and its neutron number by N,u msv+z.lhm 4*6jzjl42mp q.b which 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 atomicd nsp*4ix3 co; mass number of the nucn ods*3xpi4;c leus

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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 a ew msax9c /831w3zzkkn 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 stable nucleus becd q yziswtn7+;;-xh) xause 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 neutron n 1ge )w;mvh:knrkxwi.4 (jzzr04(j r,v5gvxs are referred to 5r)x ,vzw0rgh j 1v(xwg;jn ink44k (:rvm.ezas

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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 nuqd3msz j.z.t8clei 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 y-1z b3zvmzhjkzv 270 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 of f7/4 jxh;zy mza stable nuclexm; 4/yj zhz7fus 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, energ. p:phfy;drk 2 cpq+4zy 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 contributed tpnpgma0l j3-8s h6i- ko

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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 nucleo;1t msk 6ajc872nd d 4l*thqyhn 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 n7gwv z u- ydz- ;8i/uon/yb,xzucleon

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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 stavg( sybd-/k.gb rn4 c(tements 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 **d5z00huxzf(8e,a chogi8 k cwv;urprotons in a nucleuuxi0*fvez g 0rh,uz8oc* kwh ; 8da5(cs 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 penetrad.-w24uhp xx *+ewpnll4 s(zote

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrxkb 98/6/,oa rwkurszate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra0me+ p1puh.a ete

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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 kb)tp ekb4qc( 1qz8taj n ):.jknown 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 known as89gvg1 v 2tj wgkuj0 wq4+;odt

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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 tgup95rc7 50gug3;tmk/mn vz y69o waf9bq7r ao 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 equam9 s-,q )kifqo )w5dp-xvpo w4l 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 fhkdf m;*j28o/d0j rgd rom an unstable nucleus, the atomic mass numbergmdj0 /f8 jo;2*krdh d 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 nucleus, the atomic number odbn.e c ,a38fcf, eb.83d acnfc the 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) x 931dye w 8h3c*9- cqc(cqe.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 gamma r(;s4g9ivrdbzp od 67pq 3;qzray?

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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 unstabl*ndx6p :u7z;eumkre 5e 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 fu* ds5y 1-oxmstg96 vmass?

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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 vag1hdn8qi z 9 3i2 eo9m5p*m.kbp-bqtnlue is conserved in addition to electric charge, energy, and momentuizb9o h9-2m nm3 . * tek8qdpin1bqpg5m?

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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 radioactiv+r9 hqfo-y/yx-ai:yt e 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 oft36ajops/yge7 2bip0q4xf) ot en used. This nucleus emits a single beta particle when it decays. When this happe 20p 7o4j)/fi sp3a6goyexqt bns, 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 curlhvk3 ,9qmo2fve 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 hy(x3-bo puo:m+ln6 s esdrogen 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 replaced by bubble chambg vxbo46; w 1l2 sv7mxci;;fvbers 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 ofzfrjh;mp n4p8(g 7 21iivftd 1n a0kq/ 14 and atomic number 6 has how many protons?z;1ifn7mgp i fnq k2dpv j80(ah 1/4rt

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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 nu9(i n23nvc4e riocc:lrv f 3ast n7c1+mber 6 has how many neutronsc:a2+ v eco(7nfti34c r s9n1lvr n3ci?

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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, resq;zsy3al0b4yd* dc h (pectively. How many nucleons are in one az 4qd0 sb(yh3l;a*dcytom?

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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 numb,l+ctc4nhfx5 er for calcium 39 are 20 and 39, respectively. How 5 xh,ftl4ccn+ many electrons 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 ma7apiwc 5 +qr3oss number for calcium 39 are 20 and 39, respectively. Ho q53rp7+a owciw 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 39 are 20 and 39, rn sq jj.7fcpu1-bgv*ie3i+u 6espectively. How many neutrons are in one atop -71+j*uibcj .uie3fv 6qs ngm?

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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, neutrcbz*uhdp po (*cp1: m+ons, 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 the carbon+cpi-l tbl g9zr vh96q; kppush720 r2-14 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 1 3zxp )nn9(ul/a y.jhx5 has an 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 binding,0wk mxw;,o0i m9tyn;duus* n 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 requiredgpw+ u 0g*5 jbr5tn4-:btx7ucckj5 oy to 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 goes through alpha decay. l. uz.y(*rrno ; wn4lz Its atomic number is norow zlzny r l(..;*4unw

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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 nucleonk1+5 vc4jv xvgs. If it undergoes alpha decay, what are the number of protons and neu+k4vj 1 vgx5cvtrons, 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 decay1;gx5vk* l yvls to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carb*y1k;lg5xl vvon-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 numbekz( g*6/u 5zgycdwf u.r 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 100 year.f r7 xlo;9h7 vclc3trs?7x9col hvf7lrr; 3.t c

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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 r5m tbul.4cy58pg1d m will decay this year if its half-life is 247 ybyc1l8d. 5 gmtpum5r4ears?

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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 )/qgyjhmo7 6p $10 \; \mu Ci$ 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 ;6cp* cvsf;)xktnwh6 d3fr6c half-life of 10 min. What fraction of the sample is left after 40 min vw6cn3;df;6) 6crfkc p* sthx?

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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. Ho((tl h9wf8vpp w many iodine nuclei are necessary to produce an (t98vp(p hfwl 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 actcfwl k9 5s9;- ati/rygivity of wr9-ifc /;tksl a9yg 5$0.24 \; Ci$. 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 wofdo-:cgm o: t7etm88boden 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 c 7m to d::gmbt8o8fe-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 takevefy .w+km (;ipg)g.97b pmre $4.0 \times 10^{20} \; atoms$ 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 ispdi*mzwjjp:b0)n-(3awf8yc0 / mt0 m/u v ma $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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