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PRACTICE：Physics Unit30: Nuclear Physics and Radioactivity
本Practice来源于https://webassign.org，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
 Author: physics    Total Marks: 71 mks  Marks Awarded: _____________

User Name: No Login  Start Time: 23年05月01日 14:16  Switch to Whole-Paper Mode

Mark Problem
1#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the atomic particles has the least mass2 uj9mi9j zyn+bt6nt 5?

Correct Answer:    
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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom ism wk*jj 6p1*,0hgf:zvng:app

Correct Answer:    
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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consists ofa9zq xqjz1a-+5ue,2 iyheb ;t

Correct Answer:    
Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is determined by the number o/z /r9j2-dbq- n qndcof

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is determined by tuctnkbia eo 94f63 h35ig6e (ehe number of

Correct Answer:    
Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an atom's atomic number is given by Z, its atomic mass by5b/ ,mt.qrfji A, and its neutron number by N, which of the following is co t5 .jf,qi/bmrrrect?

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an unstable nucleus, the atomic mas f.j1u6 1nzlebs number of the nuc16jn 1u.flez bleus

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons nag+y zjk*v5/in an atom is

Correct Answer:    
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Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the size of a stable nucleus beca a a1n(:be(ycwuse of

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic number but with different numbers of neutrons aret5zgaj ya:07 s y,r/pc refcyp7ts rygz:,/5jaa0 erred to as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nucle;f5:dsmtt q dgz9tquucx 2bh)8v:o* 7i with

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is dmtzf+p 04( iiac)wtm i)bbv-8efined as

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masse-0v: t-/ rppots q(reos of its separate protons and neutrons, the total mass of a stable nucleus r:p-ps-r tetv o(/0oq is always

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to f72xup4 h;-q2 vmc3h *rph90 x qfoe-cjeyid;xorm a stable nucleus, energy is

Correct Answer:    
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Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a +0batl pt 23klnucleus is contributed to

Correct Answer:    
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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucld g4cux :6kf.5t 9vwymeon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleoo(8o j+e/zgj.5jb vkzn

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statie5 j* d3i8;.liwyng )bvf ex rt:k:t/sj lz58ements concerning the nuclear force is false?

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostalh2x6- 3(or( ybwyqn9+ yzx edtic force, the nuclear force between adjacent protons in a nuc9qy 26bd3eoryxh+ n-wl(x z(yleus is

Correct Answer:    
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Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetratepyeg 7f42ty (m

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrat ,5h+,kug0n+wwcpra. ulq y y:xifn.(e

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetr+w/zv05 m n-v-tyiol a3x h*hzate

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also too ft1v1l5 :b. y08iusprgn0p1zv 0hknown as

Correct Answer:    
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Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also knou,b)ke88 hbydwn as

Correct Answer:    
Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A $b+$ particle is also known as

Correct Answer:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also knowvj0uh.w:m h.e n as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attract24ahw f qvpm p9m00go)ed to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic mass equal to hvz5kq hmw+:.

Correct Answer:    
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Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from an unstau l)b;/e(zx 6r)dzsp dble nucleus, the atomic mass numb6)xs rdd z b)z;(pu/eler of the nucleus

Correct Answer:    
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Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from 03j u;7nzmldz an unstable nucleus, the atomic number of the d;jz3lzm 7 0nunucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Maat e icp4n 1rq)h+l:d:) x 931.5 represents

Correct Answer:    
Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In beta decay

Correct Answer:    
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Mark Problem
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  During $b+$ decay

Correct Answer:    
Mark Problem
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  During $b-$ decay

Correct Answer:    
Mark Problem
35#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

Correct Answer:    
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Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following is most nearly the same as a gammpq8xw s8v: 6qta ray?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emithxy/fvorje09q +i s02 m2*v futed from an unstable nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the most mal /-brwxghn2 4:pd.zbss?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decay, what va/px2hc)mkqsd- o p8 (slue is conserved in addition to ekc8 /m2dshq(x- ppso )lectric charge, energy, and momentum?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life of a radioaw pajcp//3+skrr ut49ctive substance as it decays?

Correct Answer:    
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Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 is often used. This nucleus emits a nnj ec1q ygejzwr90zj6(7 9u +single beta particle when it decays. When this happ0n7jzjrw1 e e+czgn6qyju9( 9ens, the resulting nucleus is

Correct Answer:    
Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses a magnetic field to curve c:nl) e-q oh45yy ty-wvharged particles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses liquis wuv(x rh,bi ,q4wq fr8ut;,n15jbe/ :up)ksd hydrogen is a

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced by bubble chambers because+c q p 7*7)9lyxz4fmcx 93yotqirvfh 7

Correct Answer:    
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Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomic number 6 sd; gaf65f xj,has how many protons,6fs ; gxf5adj?

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomic number 6 has how many neutry)hh*wr,,c xy ons?) rh,y,xy h*wc

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numbd 7xkqj9g0m f)u ew(*;t e.kkwer for calcium 39 are 20 and 39, respectively. Howw (qjdw0ux7fk*) ;m kk.geet9 many nucleons are in one atom?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calci vc ks3s;vl u1i9;zs7pum 39 are 20 and 39, respectively. How many elek szc i 9slv;;73p1usvctrons are in one atom?

Correct Answer:    
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Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for 7m *yc5cwu)0wvulin-calcium 39 are 20 and 39, respectively. How many protons a*yvw ui)w75lcc-nmu0 re in one atom?

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 25*zovl;0 wyze 0 and 39, respectively. How many ne *v ozwe;l05yzutrons are in one atom?

Correct Answer:    
Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, the number of protons, neutrons, andb g0g*vvgn-l1o +.(ypq 9bf8uf d ott: electrons is 41

Correct Answer:    
Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are ther .7wbpw1 jmo nqn b0981nvm7pbe in the carbon-14 nucleus?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of ato:1*ffwbsil4ca zs1 h4 mic number 15 has an isotope of mass number 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding enerakdw 1dmze 0luo 4ab9del8( 06gy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remove one proton fro0v wagh a82- yd4cyt/rm $^9Be$?

Correct Answer:    
Mark Problem
58#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic numb1db: 4z.gfm,r hqf)m oer 88 goes through alpha decay. Its atomic number is n 4f.zoqh ,m)r:db 1fmgow

Correct Answer:    
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Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and 249 nucleons. If it undergoes alpha decay, ax3 j6hz;e1fe what are the numberejf31 exh;z6a of protons and neutrons, respectively, in the daughter nucleus?

Correct Answer:    
Mark Problem
60#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta decay. How xnu1; /b u1t-7ku ik)wt4ws wsmuch energy (in MeV) is released if carbon-14 has a mass ou;wn7-w wkbts 4 s1/x1ukitu) f 14.003242 u and nitrogen-14 has a mass of 14.003074 u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 6 ua:*mnmgrpm1y0 h. 3ewndergoes $b-$ decay. Its atomic number is now

Correct Answer:    
Mark Problem
62#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the half-life of a material is 45 years, how muchmweh eak)yfs6 ryw;.j6l5 16e will be left after 100 years?l. 6yyhw15)e; fke6es6 mwjar

Correct Answer:    
Mark Problem
63#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

Correct Answer:    
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Mark Problem
64#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What is the probability that an atom will decay this year if its half-lif a mu1i 0dqd;fm;zu- ;i 23usmx9q-xmpe is 247 yepmm9a1q- xq id-; sz2u fxi 3;;u0udmmars?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certified atml mmdgtidf l0 5fuyu47 m5tr.y+ ru/n8ag19* $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

Correct Answer:    
Mark Problem
66#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive sample has a half-life of 10 w/ud s7iet8,tfk (.u dgn hrx ,o1yq(-min. What fraction of the sample is left fht,n ,uwu /g1k-d8sxtdre q 7(o.i(y after 40 min?

Correct Answer:    
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Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of radioactive iodine-137 is 8.0 days. How many iodine n8mti0x*w2 u mquclei are necessary to pro 8w0xq2umimt *duce an activity of $1.0 \; \mu Ci$?

Correct Answer:    
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Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substance with a half-life of 3.0 days has an initial activityu5, * vql,5z*lk3bxxi mpvs j( of l*vpvx,xiz(bl qk j,35*5mus $0.24 \; Ci$. What is its activity after 6.0 days?

Correct Answer:    
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Mark Problem
69#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The radioactivity due b4rq4kd*(z/z(p qx es to 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 carbonqs*4b (/ xke(p4zqzr d-14, a beta emitter, is 5730 years. Thus we would estimate the age of the artifact to be about

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Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it takeke.2nj9 6;k cmfrv fr//p hv2b $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

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Mark Problem
71#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long will it tak8xu(,jjs, 3b pvqsl n6r/w0rme a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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