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习题练习：Physics Unit30: Nuclear Physics and Radioactivity
本Practice来源于WebAssign，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 329 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://webassign.org/test329.html
 作者: physics 

答题人: 匿名未登录  开始时间: 23年05月01日 14:16  切换到: 整卷模式

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1#
 
单选题搜藏此题  
  Which of the atomic particles ot fvi6 aks*4x e)d80chas the least mass? (1.0 分)
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2#
 
单选题搜藏此题  
  The mass of an atom is-:0-sq aywtoy (1.0 分)
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3#
 
单选题搜藏此题  
  The hydrogen nucleusk d9 r d*fbcvbbk35+u4 consists of (1.0 分)
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4#
 
单选题搜藏此题  
  An atom's atomic number isvpq1 n +50gthad6dlo-ro(0c k determined by the number of (1.0 分)
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5#
 
单选题搜藏此题  
  An atom's mass number is determined by the numb+/aio9k.jjdxk m sn +2er of (1.0 分)
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6#
 
单选题搜藏此题  
  If an atom's atomic number is given bnx ;un4xyns/)m c., 2fqb8szcy Z, its atomic mass by A, and its neutron number by N, which of the following i xqcmu.,; zsf2nx4 8nyc/)bns s correct? (1.0 分)
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7#
 
单选题搜藏此题  
  When a neutron is em/r93 3b/qj/k5rdmief ghhc6v2) lkn h itted from an unstable nucleus, the atomic mass number of the nucleusfr eg/2lrck j69k/3mhd q/ vhh)i53nb (1.0 分)
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8#
 
单选题搜藏此题  
  The number of protons in an .it7vic fa-xu/4)5hu wsdbl (atom is (1.0 分)
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9#
 
单选题搜藏此题  
  There is a limit to the size oy xu+(h xfmoo/mn)r6-dhg63if a stable nucleus because of (1.0 分)
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10#
 
单选题搜藏此题  
  Atoms with the same atomic number but with different numbers of neutrons are reh5kf:vkcvi v g5-aa49ferred to as:k ivvh4k9aga fv5-c5 (1.0 分)
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11#
 
单选题搜藏此题  
  Isotopes of an element hmf .f14rq ;r8uk+u9 oa :xfj6qfjm er)i7b.ciave nuclei with (1.0 分)
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12#
 
单选题搜藏此题  
  The atomic mass unit is defined b dx ,):i8weou3ta1q z oxm2zrqg;06 was (1.0 分)
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13#
 
单选题搜藏此题  
  Compared to the mass m lnrmiv:ue m6gh6uzc47+, y4es of its separate protons and neutrons, the total mass of a stable nucleus muc4n z74,r+6lmum:vh6egyi is always (1.0 分)
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14#
 
单选题搜藏此题  
  When nucleons join to form us2/d7fxpg2 e a stable nucleus, energy is (1.0 分)
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15#
 
单选题搜藏此题  
  The binding energy of a nucleus is contri.gsqeg p+:w7 wbuted to (1.0 分)
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16#
 
单选题搜藏此题  
  The binding energy pemkum - h/y(.8lfue/nor nucleon is (1.0 分)
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17#
 
单选题搜藏此题  
  The binding energy per nucle(tok z*22 9uh; k f+ybvt3owgxon (1.0 分)
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18#
 
单选题搜藏此题  
  Which of the following statements tdr kviu:elwh( (f2*: concerning the nuclear force is false? (1.0 分)
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19#
 
单选题搜藏此题  
  Compared to the electrostatic force, the nuclear for-l axgt)kvx1z eth.:)ce between adjacent protons in a nucleus vk)t)1g:ht .x lzax-eis (1.0 分)
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20#
 
单选题搜藏此题  
  Alpha rays can penetrate6 .*-umffee fz (1.0 分)
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21#
 
单选题搜藏此题  
  Beta rays can penetrat ixqu,q11u-6*me( hvld(e /pdqm,sxee (1.0 分)
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22#
 
单选题搜藏此题  
  Gamma rays can penetrga 7,rf)h25 sdr:5w+qnhj8elr2kho l ate (1.0 分)
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23#
 
单选题搜藏此题  
  An a particle is also kncr:a z903fqbzown as (1.0 分)
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24#
 
单选题搜藏此题  
  A b- particle is also known a e++9 yoo8kyu+ : ,dlnhfdje5w h7yts*s (1.0 分)
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25#
 
单选题搜藏此题  
  A $b+$ particle is also known as (1.0 分)
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26#
 
单选题搜藏此题  
  A gamma ray is also knownq+9 3lyq i zbof op/ww+5xr9n4 as (1.0 分)
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27#
 
单选题搜藏此题  
  An alpha particle will b 2buj1 z4t;qkse attracted to a (1.0 分)
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28#
 
单选题搜藏此题  
  Alpha particles have an atomic mass equal hj6b(pqj nbdk/-kf(fwix)s1 r;ir53 to (1.0 分)
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29#
 
单选题搜藏此题  
  When an alpha particle is emitted from an unstable nu-qyer(yll* io83 4daylg+ppk6ls y(1 cleus, the atomic mass number of the nucleus4alse*or( gyl y(+qdp-1p y68yi k3ll (1.0 分)
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30#
 
单选题搜藏此题  
  When an alpha particle is emitted from an uns386w43vv*ez sus7 fff c7 ep +szudou9in1 v5ztable nucleus, the atomic number of the nucleus*s s7s3wz3cz6fvvdp 8 9 z+eu7f1uvuo fe4n5i (1.0 分)
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31#
 
单选题搜藏此题  
  The expression (MX - MY - Ma) x 931.5 repres lr(k3f;lh1o8 /ng j2y8ek vckents (1.0 分)
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32#
 
单选题搜藏此题  
  In beta decay (1.0 分)
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33#
 
单选题搜藏此题  
  During $b+$ decay (1.0 分)
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34#
 
单选题搜藏此题  
  During $b-$ decay (1.0 分)
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35#
 
单选题搜藏此题  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus (1.0 分)
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36#
 
单选题搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus (1.0 分)
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37#
 
单选题搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus (1.0 分)
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38#
 
单选题搜藏此题  
  Which of the following is most nearly the s zxi50cd0 yc 0t2bn5-taif2g uame as a gamma ray? (1.0 分)
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39#
 
单选题搜藏此题  
  When a gamma ray is emitted from an unstable nucley 4l6l wju,q(nx;2rwkus, (1.0 分)
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40#
 
单选题搜藏此题  
  Which particle has the most mass?xobchc 3pmb; 9v ,5;ax (1.0 分)
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41#
 
单选题搜藏此题  
  In all three types of radioactive decay, what value is conserved in addition 3ny8- f:ldz;lr r ob:;zhiv +eto electric charge, energy, and moybr :-lrz:dz n;+3fole;8 vihmentum? (1.0 分)
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42#
 
单选题搜藏此题  
  What happens to the half-life of a radioactive substance as it decaysw3(h q+u 4yhfs? (1.0 分)
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43#
 
单选题搜藏此题  
  In radioactive dating, carbon-14 is often used. This nucleus emits v s3d9 -vn-xrma single beta nrd-v9xm - vs3particle when it decays. When this happens, the resulting nucleus is (1.0 分)
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44#
 
单选题搜藏此题  
  The type of detector that uses a magnetic fpk9sbh x y7y.rpc lvx;hz2 *()ield to curve charged particles is a (1.0 分)
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45#
 
单选题搜藏此题  
  The type of detector thatkyc 7hoxl;d12 uses liquid hydrogen is a (1.0 分)
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46#
 
单选题搜藏此题  
  Cloud chambers have been replaced by bubble cham;m4fe r* xfx,xb )dwt/bers because (1.0 分)
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47#
 
单选题搜藏此题  
  An element with atomi tblaj4x6g2r0te3,qi 1a+a jig y9+fu c mass number of 14 and atomic number 6 has how many proton aygitt9x4203bjuajg a6,+ri + 1qlfes? (1.0 分)
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48#
 
单选题搜藏此题  
  An element with atomic mass number of 14 and atomic number 6 has how many ntwc2:f6 1z+5gjfpc hjd 5zc)yeutronscdp52 cj6 ):+fz5w yzjtgfhc1 ? (1.0 分)
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49#
 
单选题搜藏此题  
  The atomic number and )bjvpx:pc+-w/f teh9 d*f8vsmass number for calcium 39 are 20 and 39, respectively. How many nucleons are in one atvw8 +b:jp -pfh/* fdv)scx t9eom? (1.0 分)
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50#
 
单选题搜藏此题  
  The atomic number and m5 p;2anscfky ah5h-9n+o c+f iass number for calcium 39 are 20 and 39, respectively. How mai an5op+ hfc+ -hfka9 5ysn2c;ny electrons are in one atom? (1.0 分)
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51#
 
单选题搜藏此题  
  The atomic number and mass number for calcium 39 are 20 and 39, respectively.c3wzbv60)- p/-,xfaa uzo njx How many protons arexf0w3 j, -/uxcz p6 ba)nvzo-a in one atom? (1.0 分)
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52#
 
单选题搜藏此题  
  The atomic number and mf x+b1ky)fe**a) 9sl1dqm mycwe ++m sass number for calcium 39 are 20 and 39, respectively. How many nkl))fxe 1dmfsybay qce*s w1 9mm* +++eutrons are in one atom? (1.0 分)
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53#
 
单选题搜藏此题  
  In a 93 Nb nucleus, tk4e*dm sjpu7ih51m g3he number of protons, neutrons, and electrons is 41 (1.0 分)
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54#
 
单选题搜藏此题  
  How many protons are tuor j-11s21vt c ckna6here in the carbon-14 nucleus? (1.0 分)
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55#
 
单选题搜藏此题  
  If an element of atomic number 15 has an isotope of mass number 32teo8)sm6 np+ufxi55hb ct5-r , (1.0 分)
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56#
 
单选题搜藏此题  
  Calculate the binding eb/u j)0xwsb o*yh5k*fnergy of $^4He$. (1.0 分)
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57#
 
单选题搜藏此题  
  How much energy is re2l k,opwf/tz .y8 8 plhatj5p7quired to remove one proton from $^9Be$? (1.0 分)
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58#
 
单选题搜藏此题  
  An element with atomic number 88 goes throuu 8cs )lpw1c)q(zybs0gh alpha decay. Its atomic number is no( )ssq c8zpb)1 wcly0uw (1.0 分)
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59#
 
单选题搜藏此题  
  An atom has 98 protons and 249 nucleons. vb r)m+iren x9/2m4grIf it undergoes alpha decay, what are the number of protrnxr49m+i )e g/brvm2ons and neutrons, respectively, in the daughter nucleus? (1.0 分)
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60#
 
单选题搜藏此题  
  A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta decay. How much*kvo 7u)r.uop q.bu4 wqon/0 kd* i2xy energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and 7ud*. 4xobnqo y.0u )o*kikuwr2v/pqnitrogen-14 has a mass of 14.003074 u? (1.0 分)
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61#
 
单选题搜藏此题  
  An element with atomic number 6 ud4 0gnjx 4o m/u7wubei+0x4 b c.uk(omndergoes $b-$ decay. Its atomic number is now (1.0 分)
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62#
 
单选题搜藏此题  
  If the half-life of a material is 45 years, how much wil.cp(w-f s2-nk67zvcmlgjd7w9l0iah l be left after 100 years?pngjwac9-cwl62 lv d-.kzsi 0f7(h7m (1.0 分)
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63#
 
单选题搜藏此题  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years? (1.0 分)
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64#
 
单选题搜藏此题  
  What is the probability that auop8ho*n. w6ln atom will decay this year if its half-life is 24ow.6 *u nho8lp7 years? (1.0 分)
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65#
 
单选题搜藏此题  
  A Thallium source was certif:mok5fci; )s h o9es4iy f*f8ried at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years? (1.0 分)
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66#
 
单选题搜藏此题  
  A radioactive sample has a half-life of 10 min. What fraction of the sample gu9; zt j.+**tdargkc: gov0i is left after 40 min?vki*aut+gr ;d zc*o:0j g.t9 g (1.0 分)
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67#
 
单选题搜藏此题  
  The half-life of radioacti6u )5 h zsro9 dvemq3p*.ujp6cve iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity o) p.s6zuhd5 j* vmpeo369qc urf $1.0 \; \mu Ci$? (1.0 分)
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68#
 
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  A radioactive substance with a half-li d*/5wka)fo. xmgw3w059jdwr ifr+r ofe of 3.0 days has an initial activity of mkx*.5 r wf wfao9r 3w) gjrdoi+5d/w0$0.24 \; Ci$. What is its activity after 6.0 days? (1.0 分)
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69#
 
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  The radioactivity due to carbon-14 measured in a piece ee 2*ha9ksr3a3z ,w zzn 6z5mbof 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 producedskerh3a nw5ezzbz a m26 9,z*3 160 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 (1.0 分)
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70#
 
单选题搜藏此题  
  How long would it take;fi azonf ,p*p ;bi+)o oq/ebt ji(,p; $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years? (1.0 分)
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71#
 
单选题搜藏此题  
  How long will it tak 2gsg8 qcd0s*z+ arxacyq( *f/e a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years? (1.0 分)
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