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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 the ol7q:)itx85:e cmh lgtqwr z,18;bivleast mass? (1.0 分)
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2#
 
单选题搜藏此题  
  The mass of an atom iskl a(:bdj4-gr (1.0 分)
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3#
 
单选题搜藏此题  
  The hydrogen nucleus cons70e9;d czl;fmg c lhk0ists of (1.0 分)
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4#
 
单选题搜藏此题  
  An atom's atomic number is determinedjd lx4o2vmv26 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 byw ).ldp,slcx8 s n(lm: the number of (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 luj;outr(o2w 62vz-fatomic mass by A, and its neutron number by N, which of the following is correctt6-2;w2 oluou(vjr f z? (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 atomuiw)c*cbk5c 2ic mass number of the nucle*w 5)c2uckibcus (1.0 分)
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8#
 
单选题搜藏此题  
  The number of protons in anegmgqrb w(bp:gl44j( r49rs * atom 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 sta/kd msh v;m/uni ,+wr6ble nucleus because of (1.0 分)
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10#
 
单选题搜藏此题  
  Atoms with the same atomic number but0e8 xrhvv./zz with different numbers of neutrons are referred tvz.h/ er8x zv0o as (1.0 分)
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11#
 
单选题搜藏此题  
  Isotopes of an element hl-dufat)a e2 v7 .b;mwave nuclei with (1.0 分)
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12#
 
单选题搜藏此题  
  The atomic mass unit o *;1h x0wjbilis defined as (1.0 分)
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13#
 
单选题搜藏此题  
  Compared to the masses of its separate proobeh+qhr2 m jgt-5n;,tons and neutrons, the total mass of a stable nuc 5g2,rt; jme+qnbohh-leus is always (1.0 分)
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14#
 
单选题搜藏此题  
  When nucleons join to form a stable nucleus, enjhr+/gcl u+- zergy is (1.0 分)
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15#
 
单选题搜藏此题  
  The binding energy of a nucleus is contributed 5c enxf bc6,2+jyi.h0 kkhxs9to (1.0 分)
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16#
 
单选题搜藏此题  
  The binding energy per 6 * b7usp1xkt(lf4b wjnucleon is (1.0 分)
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17#
 
单选题搜藏此题  
  The binding energy perhlivpv 1+ b)z mn2om,2 nucleon (1.0 分)
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18#
 
单选题搜藏此题  
  Which of the followini0cf9 1c8 wpc+ m j3cpcvor2f :g;w7pbg statements 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 forc y7 fdc)5kff)be, the nuclear force between adjacent protons in a nucdk) 57c )fbfyfleus is (1.0 分)
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20#
 
单选题搜藏此题  
  Alpha rays can penetrw,7gq,i q/ *3 fh ddekmfuq,zz -c.fz*ate (1.0 分)
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21#
 
单选题搜藏此题  
  Beta rays can penetrs44d,p8chr* p fx4bf late (1.0 分)
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22#
 
单选题搜藏此题  
  Gamma rays can penetrate,ivvb(rrxht p7 u2a5 5 (1.0 分)
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23#
 
单选题搜藏此题  
  An a particle is also 3jt-oza3,x2 myy. 1nj g +wkcoknown as (1.0 分)
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24#
 
单选题搜藏此题  
  A b- particle is also kn4bnce(h73 ccb3 ta9t7q swcy6own 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 known a:elfun-woxb;a -e(s,v uxx ui0w3( b,;ch6sr s (1.0 分)
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27#
 
单选题搜藏此题  
  An alpha particle will be attractedlt 273dpp;fa r to a (1.0 分)
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28#
 
单选题搜藏此题  
  Alpha particles have an atomic mass equal *m gf7c /v0qrrto (1.0 分)
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29#
 
单选题搜藏此题  
  When an alpha particle is emitted from an unstable nucleus, the atomi)heeahf sk-+l. 5t;jzoxnlg9ozq./r,rr*. jc mass number .e l/n,zk lfh+qj.s)-e; atrrr j9go*h ozx5.of the nucleus (1.0 分)
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30#
 
单选题搜藏此题  
  When an alpha particle is emitbyklvb q35/ ;lted from an unstable nucleus, the atomic number of the nuclq 5l3b/by k;vleus (1.0 分)
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31#
 
单选题搜藏此题  
  The expression (MX - MY - Ma) x 931.5g s;fic28h )fe 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 most nearlyg ,;lbw6ap4n auigundcm8:)0 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 an unstable nuca 3ffxva:, s+gleus, (1.0 分)
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40#
 
单选题搜藏此题  
  Which particle has t6s.) al lmh9g6es:u tohe 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 tom8i61l1 bntr;:rhkb .ml9 iri electric charge, energy,lt 8rm ;bnrl6rkb19m1h.ii i: and momentum? (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 i8giza)qm wn;(4fog r7af4l f0t decays? (1.0 分)
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43#
 
单选题搜藏此题  
  In radioactive dating, carfj0lfl/,dj7d g /j.ht5 kcuh;bon-14 is often used. This nucleus emits a single beta particle when it decays. When this happens, the rgd;c . 7/hj/k jt5 lfdfhlu0j,esulting nucleus is (1.0 分)
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44#
 
单选题搜藏此题  
  The type of detector that uses a magnetqjg/ ili* 4qtt/ai3uh4),.h . k ombh cou-xo.ic field 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 that uses liqmu(wp 0jklr 25laf 8u.bo5vm1uid 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 best7. behv1l b/cause (1.0 分)
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47#
 
单选题搜藏此题  
  An element with atomic mass number of 14 awins:.yk4 -or nq-z2n s6wzn ct; ,:vbnd atomic number 6 has how many protons?w,n.-n ;:s4zs26-nwobqkcr iynv:tz (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 cy3wkx0 i5ua0cup*m 8ju7/rm has how many neutrons?w0u7j3cmaup*/i c km x50ur8y (1.0 分)
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49#
 
单选题搜藏此题  
  The atomic number and mass number for calcium 39o8q2k dvuag 5)n5- riv are 20 and 39, respectively. How many n5ko8q -vv d g2arui)n5ucleons are in one atom? (1.0 分)
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50#
 
单选题搜藏此题  
  The atomic number and mass number for calcium 39 are 20 and 39, re.pofd624m0jdfse;t p wye6 x;spectively. Hod 24f jyp;;p o efxwmde06t.6sw many 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 fol 8eyk-nhqq ). 6 s,afxy5pok*r calcium 39 are 20 and 39, respectively. How many protons are in one ato)yfq8 s ,p*q6a .hleokkny5x-m? (1.0 分)
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52#
 
单选题搜藏此题  
  The atomic number and mass number for calcium 39 are 20 and c 3r xp7fa o(;uvrp0l639, respectively. How many neutrons are in onea7 p(; prx0vc6luf o3r atom? (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, aaqpu:1gvaigt:5d - 7y nd electrons is 41 (1.0 分)
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54#
 
单选题搜藏此题  
  How many protons are there in the carbon-14 dnrfesgza.38 c e+106;wtr jgnucleus? (1.0 分)
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55#
 
单选题搜藏此题  
  If an element of atomic number 15 has an +*ihi3 l9iamuisotope of mass number 32, (1.0 分)
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56#
 
单选题搜藏此题  
  Calculate the binding energy ofi479wua (sdaho4 pie6 $^4He$. (1.0 分)
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57#
 
单选题搜藏此题  
  How much energy is required to rem:iqdyo+x s01wyt9z diey 7l)-ove 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 through .*g0e qagl n8t:jjc o1alpha decay. Its atomic number is no.*e1lgj cq8ngjot0: a w (1.0 分)
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59#
 
单选题搜藏此题  
  An atom has 98 protons and 249 nucleons. If it undergoes alpha decay, ;xfdv (fj qdk7/ar:l9 what are the number of protons and neutrons, respectively, in t rk lqd:adx7(;v9f /fjhe daughter nucleus? (1.0 分)
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60#
 
单选题搜藏此题  
  A carbon-14 nucleus decays to a ni9(l3gm ;o vdgftrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u anm9f g (go3;lvdd 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 atomic number 6 undergsqra8;7v6dj g fb:j* g9e*r+gci.gv k oes $b-$ 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 ;jjzkbsh2o-b,aixled78 e 7j.l* 0zh a material is 45 years, how much will be left after 100 years; jsz x8zbhl72,o*h j 0e-dkajibe7 l.? (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 atom will decay this year if its half-life is hta 9(q88v9 ,afgjodh( gmdr( 247 yeg( 8m ,o9gvq( afdj( h8ar9hdtars? (1.0 分)
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65#
 
单选题搜藏此题  
  A Thallium source was certified a/c bfech ao d.nz3*-a+t $10 \; \mu Ci$ 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 min19g 84,n(y sw;,igpjep:wks om ms/cl. What fraction of the sample is left after 40 min9pw1slm/n(ps8cg;gy, eos m,wk 4j:i ? (1.0 分)
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67#
 
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  The half-life of radioactive iodine-137 -bt;2lzcfhotxy8m ss) .u /wuyg21)*v8ktr d is 8.0 days. How many iodine nuclei are necessary to produce an activity osb)ugv8* fx zl) 1ytt8urd2kow ;t/cs -.2hymf $1.0 \; \mu Ci$? (1.0 分)
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68#
 
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  A radioactive substance with a 4ydf2dl g .2,i) vtcpxhalf-life of 3.0 days has an initial activity of 4i .x, )cfyd vp2gdtl2$0.24 \; Ci$. What is its activity after 6.0 days? (1.0 分)
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69#
 
单选题搜藏此题  
  The radioactivity due 5kc :ea td6k)cto carbon-14 measured in a piece of 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 160 counts per minute. The half-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age of te: dkta5c6 ck)he artifact to be about (1.0 分)
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70#
 
单选题搜藏此题  
  How long would it tau3fab+* x jm qnb- eb0ec+1ak-ke $4.0 \times 10^{20} \; atoms$ 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 taker04bb./p yi4 ;uye hmi 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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