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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 the least u ;9fvxcv/h6y4ek u 6yt1m54 gljiz2bmass?

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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 ygzr(3d b6ieplb.+ b 4is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistsn4ol+ph h6ja(j d7qr, 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 ;6tkhw1 pkiqa 7 h;dh*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 numbex );im5w:ie-irjlf5:vdnt tj z-x-.j r is determined 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 numbe suty9yj3)q1 sr is given by Z, its atomic mass by A, and its neutron number by N, which of the foqt 3)js9y1suy llowing 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 f0tdq/5jb-v glvp8s0unstable nucleus, the atomic mass number of the nqvv0dp-0s5j fblg t/8ucleus

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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 a+.lu2svz(s1 ;hkdn r ftom 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 stabl)+ 5ilk nvmt1 abbw+j)e 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 neutrons are renwo 2i 1h1ej rpn9x3g7qpxjd8h;j0idm r 5) o1ferred t x0 gj13;pjim i8hxord152e19jnnropd7 )w qho 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 have nuclei witxbmcgwuz.dv zq 93 ;4jbdd--7h

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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 definew)-e ogmir3*w3ijx 4ad 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 eb;v zz,1 p9osits separate protons and neutrons, the total mass of a stable nucleus iz;ve 9p1, bzsos 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 37)w 8ze+9zqh 2gkbw q b4mml:ahsk *hnucleus, 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 is contributed c2qysx4 ba*x; g+o5a wp/su3x 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 nu(rxj llxr1 v1*ur,2c bcleon 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 nu ae6xb s6g dz:)d*+-cffooaqj 21 4gdfcleon

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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 thft+ ar(j f3twbm1l +q6e 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 forcev 0;wzancn5 ffk +d8*b, the nuclear force between adjacent protons in a nucleus ;+ 8 a vkbfnz5*0fdncwis

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penettf24h/xamc( 8.q azjhrate

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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/fhv x4)v e2vp. emg2f

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetray5 duq-( w2me, ej/vuk g1xi1lte

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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 alsonqj15hz/qf( h5 dx*q : gxgzg) 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 knowssw0)*pq;qo1nj 5wwflo x/k5 uuwv8+n 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 be97i 8oc8speop 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 atomics7 8g80semwjm: w:hf q 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 f7zd mkk 8q.ep:rom an unstable nucleus, the atomic mass number of th:qmp78d kke.z e 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 emitte( //ozgwjq m2rd from an unstable nucleus, the atomic number of the /(m/jq rogw2znucleus

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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 931.5 representsf .joj1 -)s ipl)b2 eer1ryk*z

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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 r941br; uvsz*g t pmj-bh-sz(;cj0 n lis 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 , 2zwkbbeja20kr qot1 r0e/-tunstable 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 mk2o m4f+iru-7 iyj z-tass?

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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 -bd* :a1wk stsradioactive decay, what value is conserved in addition to electri w:kb*1da-tss c 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 radioacov v2 j*c;31lj8(9fbpxpwz fctive 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 ofteo0+ns3aj9f zyzj d78:xkfg c 4n used. This nucleus emits a single beta particle wh n:jkdfx8zc 07+94zyj 3gosafen 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 parstu67w/ hcc.+guzu* wticles 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 lix5d,r0aa/ +ujhtn*up)4 rtktquid 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 been replaced by bu imt604no loug3. hei5bble 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 how 3mlemt)*smxlx*, d k. je))blmusj*5 many protonsxld**km,j5j tlsleuem *m.3)m) )s xb?

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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 /kiz/d 3 g xw +dh7ea,z-0uzszand atomic number 6 has how many neutronsi70s+/, gz-d d3a kxuzwzeh /z?

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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. Hxf q:;ah7kaa3 ereumyb:)d 1(ow many nucl:e:fy(k 1ae a7q;h)bru mxad3eons 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 mass number for calcium 39 are 20 and-)+in zah bg elx/oz94f6 to,r 39, respectively. Ho9bl/) r-h4oznio+az ef x,t g6w 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 mass number for calcium 39 are 20 and 39, re+n ihs1a0*ai./d mtolspectively. How many protons are/is+li do.h a*0mta1n 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 i;1d8bs u0lslb: c/phmass number for calcium 39 are 20 and 39, respectively. How many neutlb:psi/ 0l bdsh81u c;rons 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 electronswci,:eo:3omy5al a 2p 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 th uk,j)asa/ 5fgoj( /dhere 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 atom e-lgz6cav*o7ho j6. q n3l3mmgs )v4tic number 15 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 energy v 6c)w c ja/;8jpdv0rhof $^4He$.

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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 remo.9tect5ryl9m ve 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 hp lgw6(1z98 yqvgkr3 number 88 goes through alpha decay. Its atomic number is no yvgw1hgp 83q6 r(lz9kw

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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 towgpy1 7biv::pe62o undergoes alpha decay, what are the number of:p :wiv7 y21o6epgot b protons and 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 nitrogen-14 nucleus by beta decay. How +tie)q8 / zq;8bfjo1 6 g few6u6yfexomuch energy (in MeV) is released if carbon-14 has a mass of 14.) +o 8f8 ;qeog jf 66q6bzyfwx1/uteie003242 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 undergoes5; w(nnq ds(4sdz5whi $b-$ 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, ,l xif); wuqz6how much will be left after 100 yearsq)wzf,6;xuil ?

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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 hav ccti7th c/aut-2u-l;ti 23m lf-life is 247 yearia3mit7;-2c-2 c u /ttchutlvs?

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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 at6o (vkc(dzj7wz9n:th t5f. kv $10 \; \mu Ci$ 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 sampbdl u:h) vlyxq47g: 7gh ft,t:le is left after 40 min?h7 l4lt:gd)ugt f ,hx :q7v:by

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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 ma6:1b3l -s 0v ypn; )ggttysyazny iodine nuclei are necessary to produce an t:3gzns) ;a0 -6yyy1lpvs bg tactivity 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:n7b zo7) 7bcfau.wdt -life of 3.0 days has an initial activity of :c7 a7dofnuwb. )b 7zt$0.24 \; Ci$. 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 cas6hc e z7p6htrbp3g:7b-w qz q4ket 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 160 counts per minute. The half-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimhe67gtwc:br-3bp6 7p zhq4q z ate 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 takeuxv(; .ah+,aj77gcoj.dlw( y0 :nm d cun;akm $4.0 \times 10^{20} \; atoms$ 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 9u ign(z uu/:gff*f+n mj /8qe$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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