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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 has th2* 8ip2(u4qw gh *c62t w jxuxkcx5xu kk0h:tme least mass? (1.0 分)
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2#
 
单选题搜藏此题  
  The mass of an atom f 5fahwgu422:*lgmjcis (1.0 分)
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3#
 
单选题搜藏此题  
  The hydrogen nucleus consists 7bjny0 uumid4.f;x /vof (1.0 分)
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4#
 
单选题搜藏此题  
  An atom's atomic number is )( m76i:6-v:yzuw +skt-buujgx vut x 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 number on,q sbnly*jr4 9t ;8ai-ts6yd )vq2skf (1.0 分)
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6#
 
单选题搜藏此题  
  If an atom's atomic number is given by Z, its atomic mass by A, and its neutbp:x8;qoa2 vyron number by N, whichb x8y :apovq2; of the following is correct? (1.0 分)
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7#
 
单选题搜藏此题  
  When a neutron is emitted from an unstable nucleus, the atomic mass n(gv ;5lhvk 5gjqs;m g.,y+ 0gzrao zl0umber of the lv5m+z 5hlgr; (y.;,a0 s0govjqzg kg nucleus (1.0 分)
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8#
 
单选题搜藏此题  
  The number of protons in an atnd8kvb,zwlu 3 .3n hj*om is (1.0 分)
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9#
 
单选题搜藏此题  
  There is a limit to the size of a stable ef ssdzyu 91nh y*a)2n 1c9ps:y(ujd.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 neutronsa2uio a1tc7,*yit it9 are referred toyoi,91uc t t7iat *2ia as (1.0 分)
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11#
 
单选题搜藏此题  
  Isotopes of an elemen4mwo0 ;z uewus9:rgax /o3pt +t have nuclei with (1.0 分)
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12#
 
单选题搜藏此题  
  The atomic mass unit is defined ah.yftqk *8urt ,5x9f ds (1.0 分)
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13#
 
单选题搜藏此题  
  Compared to the masses of its separate protons and neutrons, the total mas yjim.og65d l(s of a stable n dyj5.lgom(6iucleus is always (1.0 分)
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14#
 
单选题搜藏此题  
  When nucleons join to form a s)m jknqmtr 0lya3 t)60:h4dsr sh5h:itable 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 contribute:eo 2z23tc eg0* f0sz)ad wqzrd to (1.0 分)
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16#
 
单选题搜藏此题  
  The binding energy per nuclegl--,:xj*pu i bis7kf *kqxy (on is (1.0 分)
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17#
 
单选题搜藏此题  
  The binding energy per nucleompea5z /o8 wq7jkdc,xbow.9 / n (1.0 分)
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18#
 
单选题搜藏此题  
  Which of the following statements concerning the nuclear force ico)j8 z:e nqy,ql, huums)6 3cs false? (1.0 分)
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19#
 
单选题搜藏此题  
  Compared to the elect 3rik6k7jv q*grostatic force, the nuclear force between adjacent protons invk*6 rg j7qk3i a nucleus is (1.0 分)
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20#
 
单选题搜藏此题  
  Alpha rays can penetm.srp8) qh09hgme2a2 scubw ) rate (1.0 分)
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21#
 
单选题搜藏此题  
  Beta rays can penetrax).4nmr pemh9 te (1.0 分)
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22#
 
单选题搜藏此题  
  Gamma rays can penetrat- j ;1mp9mo ldt)kww(de (1.0 分)
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23#
 
单选题搜藏此题  
  An a particle is also k2x3kpbcm:ck 6nown as (1.0 分)
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24#
 
单选题搜藏此题  
  A b- particle is also k*r91e as9r1i q.ahly ynown as (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 epwuy+.r.un 0+vb +b wt8) khcknown as (1.0 分)
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27#
 
单选题搜藏此题  
  An alpha particle will be attracted -2j .f/k*i.sc+k/ xzx.am hoyzcl6 nuto a (1.0 分)
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28#
 
单选题搜藏此题  
  Alpha particles have an atomic mass t8mwe1(eya o;equal to (1.0 分)
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29#
 
单选题搜藏此题  
  When an alpha particle is emitted from anfa9yf/iy 3vk8 unstable nucleus, the atomic mass number of theyafky 3f/i 89v nucleus (1.0 分)
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30#
 
单选题搜藏此题  
  When an alpha particle is emitted abf3n g, f;jxgkr: ;em-v2*klfrom an unstable nucleus, the atomic number of the n-x*akbfggrmf 2 kn ,;jl:;v3e ucleus (1.0 分)
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31#
 
单选题搜藏此题  
  The expression (MX - MY - Ma) x 9315ll97xq8 dnst .5 represents (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 mos fq j)*ybp ,f2gwx 5 *:fiycts-u0g9oat nearly the same 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 akhil1 yczmt9si),3 q4 a 0ne4hn unstable nucleus, (1.0 分)
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40#
 
单选题搜藏此题  
  Which particle has the m9b(.nub k ca,most mass? (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 to 1a6 aww t;. 7v8lnbdarelectric charge, energy, and momentum?w8;bn1a 76rvdwtlaa . (1.0 分)
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42#
 
单选题搜藏此题  
  What happens to the half-life of a radioact( i7v- g xuedfaj3n/6nive substance as it decays? (1.0 分)
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43#
 
单选题搜藏此题  
  In radioactive dating, carb0 l7m1p5nab7 xtuak4w*ul1 j lon-14 is often used. This nucleus emits a single beta particle when it decays. 5al 7tn0lw4 * a bjkluu7x1p1mWhen 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 field to curve charg wpfi8 -l2joko;j i*bc -xdj(b.jv( j)ed particles is a (1.0 分)
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45#
 
单选题搜藏此题  
  The type of detector that uses liq;*2fo./j xc6tc*qb een r50p c1jqevg uid 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 chambers becqof4j)ul sl;lwe f*o2b:.ne+ause (1.0 分)
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47#
 
单选题搜藏此题  
  An element with atomxbn-+3f.dw rl ic mass number of 14 and atomic number 6 has how many protons?+-3 rndl wf.xb (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 8kvz-;pbrs. s * hzcomd(rn,7many neutronrh r(8d c;ksbnz,o*vms 7z -p.s? (1.0 分)
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49#
 
单选题搜藏此题  
  The atomic number and mass number for calcium 39 are 20 and 39, resn t/ f 99mlvyif(v+ci3pectively. How many nucleons are in one at/v vn3 +9cl(fyi9 fmitom? (1.0 分)
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50#
 
单选题搜藏此题  
  The atomic number and mass 9 *c2 h guuizj2hjj-q1number for calcium 39 are 20 and 39, respectively. How many electron- 21 gi9 uuchjjzq2j*hs are in one atom? (1.0 分)
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51#
 
单选题搜藏此题  
  The atomic number and mas olglwdv; +(qcw.bn8;s number for calcium 39 are 20 and 39, respectively. How many (8;v .;+wnqodlwcglb protons are in one atom? (1.0 分)
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52#
 
单选题搜藏此题  
  The atomic number and maems.+3lgzd nr)/u e; mss number for calcium 39 are 20 and 39, respectively. How many neutrons are in one atom?m l+ser3/u)d n.;ezm g (1.0 分)
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53#
 
单选题搜藏此题  
  In a 93 Nb nucleus, the number of protons, neutrons, and elecrgu)5 ivh y0ro+yuop3 r ; t2vf3fs6(itrons is 41 (1.0 分)
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54#
 
单选题搜藏此题  
  How many protons are ther)5cg4ag,sa4(tupfrwm ; w7m he 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 3:qd5ir) db3e(+7ovfs mbgn8gq(.vag2, (1.0 分)
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56#
 
单选题搜藏此题  
  Calculate the binding energy-n,gdy,uku1ppwnrk- z3e- h ;xq(y ,f of $^4He$. (1.0 分)
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57#
 
单选题搜藏此题  
  How much energy is required to remove onei2:2ym wwuz n4 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 through alpha decay. 4bip e*o8;l do Its atomic number is nooedb4op 8;l *iw (1.0 分)
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59#
 
单选题搜藏此题  
  An atom has 98 protons and 249 nujd)0g0wz 8je bcleons. If it undergoes alpha decay, what are the number of protons and neutrons, 008d)gj wez bjrespectively, in the daughter nucleus? (1.0 分)
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60#
 
单选题搜藏此题  
  A carbon-14 nucleus decaysphs b9xrp3 ;-g -yzen3 to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if chzx3-9e s-gpy3 ;nbp rarbon-14 has a mass of 14.003242 u and nitrogen-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 atomy tre4e0 5w7ixic number 6 undergoes $b-$ 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 matek7 s7z* t;xnzzrial is 45 years, how much will be left after 100 years?x;zk 77sz zt*n (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 an atomam 4 jh/pq*f m2)wxk(zl,*h kf will decay this year if its half-life is 24mxf*a/w2m4j zkf(k p,lhh* )q7 years? (1.0 分)
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65#
 
单选题搜藏此题  
  A Thallium source was certifob 8 ujwxjw4m;syie1l6 a* 9hwi6s:0kied 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 sampvk0a./ l;5v zq nd:gbqle is left afteg:lq n/qakzvv.;5 bd 0r 40 min? (1.0 分)
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67#
 
单选题搜藏此题  
  The half-life of radioactizn59:opg2t rg,f o-g fve iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity -nforzt : 5fg2g,9g opof $1.0 \; \mu Ci$? (1.0 分)
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68#
 
单选题搜藏此题  
  A radioactive substance with a half-life of 3.0 days has an initial activmw87w).9 nbe ujf: qad09lv50kmr yf*un 1i suity of 5b r jff9u)udkqn0e.uw m:w l1n97s *mya0vi8 $0.24 \; Ci$. 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 of a wrj2h9eq +lgrt7 )abr 0ooden casket from an ancient burial site was found to produce 20 counts per a9 e0bl+rgjht7r r)2q 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 estimate the age of the artifact to be about (1.0 分)
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70#
 
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  How long would it take;zwh..9+j)st jotg ql $4.0 \times 10^{20} \; atoms$ 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#
 
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  How long will it take dk./a 8k3 rzja ::onrta $4.5 \; Ci$ 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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