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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 3cryoqo .co7* bfu3j4 has the least mass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom ic- ,c; ito1xt (gq45.yv llg axn/ea)fs

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consists.qj s y)s -5gc;w .x:evmntb6q of

Correct Answer:    
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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is determinej8otwgoi ( ,lupg :t(aknf5;,d by the number of

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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is determined by ml5(wxt6;y te1rsh3 vthe number of

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Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an atom's atomic number is given by Z, its aq7 l i-c)dscywl,m7f(tomic mass by A, and its neutron number by N, which of the following is -ls), 7qwc7cym if dl(correct?

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an unstable nucleus, tt500sapz yz.x he atomic mass number of the nu 0 aty.x0pzz5scleus

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons i i6flb- ptp/)bu5fci(n an atom is

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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 stablvozmm f8ho2 k76ni6 a-e nucleus because of

Correct Answer:    
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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic number but with dif rs3 90.aud5redej-leferent numbers of neutrons are referred to jd-er9al30s5e u dr.eas

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nucleizkk3u b ypahb1u;1tokr -z*)0 with

Correct Answer:    
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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is def2) fs +ga5wxj-ff) emsined as

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its sepz+jgdvfyhuuwq9vh*e )/(m; 8 arate protons and neutrons, the total mass of a stable nvw9(hg/u;uq*d)yz+ 8fvjmeh ucleus is always

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form az a(xep+jk7l42tohn ( stable nucleus, energy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is contrin.um/z e4lbc:-ts8x* j yha) ibuted to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleon isa-zpxm8 aqd a,r69t6a

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleo. k1dm8+7- m:mkiks uhnu 9zgon

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerning the nu( ffbxgol4o qmg:o m9 fts5h1k-m-5/a clear force is false?

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, the nuclear force between adja tz/m1 b3kka;4bl6 rnicent protons in a nucleus nkm/kt61l i34 ; bzrabis

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetvjvu:q rt:v:xq (y5 c2k)byib8er-( rrate

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrate *mkvj2aj+irx(8j, ed

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetr2uf 6xs b3/jxz4zq. pz*2 dln.t.chpcate

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also kns 5bb1k :ft -z-ugca 0z8cvpy(own as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also known7ffsdx ( kjd8it/ju+, 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 known-m, qn t3)p7anyxs5 lo as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attracted to 79ibhej0kpwn:/x ot2 a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atog h6 qpej-3vg+mic mass equal to

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from an unstable nucleus, the atomic 8 ,q fl q 2djbj8yi/hon13mf8jmass number of the nuc oh1j,yjidb2lq88jnf m/83f qleus

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 an unstable nucleus, the atomic :5qbk jz8*rbbo/e0xy number of the nbb0x ryz /q *k8b:o5ejucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 rep(o*q5-vks qb+ebh 3f nresents

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

Correct Answer:    
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:    
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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:    
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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:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following is most nearly the same as a gamma rayt.fi d:h38gzzwv.,, j /dlxou?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emitted l*j f8lwdz*1dq/ kf- vfrom an unstable nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has th9 rkda8b9xeh)e most mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decay, what value is cqfuq8 l 2h* u-)ne7brmonserved in addition to electric charge, energy, and momente28u)qbq*r l-mnufh 7 um?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life of a radioactivqc.gbgid2))tj;ca p (e substance as it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 is often used. This nucleus emits /dy.g6xqn+ w63 d9jrzdag+wil ;22cwbw pb3u a single beta particle when it decays. When this happens, the resulting nucle3wn 9pra6wj bzdc+2bg;y. /u3i w q2xgdd6+ lwus is

Correct Answer:    
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Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses a magnetic fielv6fi sxerql97)o u 9u)d to curve charged particles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector te*-+awbvr /: nta9lobhat uses liquid hydrogen is a

Correct Answer:    
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Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been repl-oxm)t-wq:x 7m cn;wt aced by bubble chambers because

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atobsibuo2,3sl3y;tk0t 3xljze4i s) , k mic number 6 has how many protons?s 2txy iiz 0lu34b lt,k)3ke sb;,o3sj

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomi gx yc2bb-ype0eg: ,ar4;eh8fc number 6 has how many neutronsgecy;gyf rbheae4, :82- x0pb?

Correct Answer:    
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Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numbe wnvi-4 2nea 4b;+bn22 acqjaer for calcium 39 are 20 and 39, respectively. How many nucleon4jie; +e-22bn2c a nabq naw4vs are in one atom?

Correct Answer:    
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Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 and 39, respectz ,a gmr50,1v 36uc ikim,usqwively. Hoz,uq a, s k5 mvcg3r6u1wi0,imw many electrons are in one atom?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number f2i ;p bve*w ts i 3k/34iiacodpxrnyl-l/56.uor calcium 39 are 20 and 39, respectively. How many protons are in tby ldnx2l*pi suii ;-5/6cawi.3 k/v34orepone atom?

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calego.-3tfw r /sh 4jpo9cium 39 are 20 and 39, respectively. How manyeh psg39-jf/o4w to. r neutrons 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, ankp 3 wy:lw186g2og ycgiff -)bd electrons is 41

Correct Answer:    
Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are there in the carbon-14 nucleus6lc,n jrw(cj7dzz 5aq/r-;vl ?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic number 15 ha/ u2jumngy :a1s an isotope of mass number 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding energy ofz .- ow)n3 dyq8hycls* $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remove*+ w4 w(yrl+yag,on9pi8 )qaxjdj p -d one proton from $^9Be$?

Correct Answer:    
Mark Problem
58#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 88 goes through alpha decay. Its atomic number is7k,jfdwb- j 2s nowfs7 ,j jwk2bd-

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and4gr t:i,udju5 249 nucleons. If it undergoes alpha decay, what are the number of protons and negiu4 5tjr ,u:dutrons, 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 nitro wdf( z5qy9 -xp2vpdu;gen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has apvd5(9 -wpyz ;dx ufq2 mass of 14.003074 u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic w20zfdwp91sed(8)b+ago cq7gxx v/g number 6 undergoes $b-$ 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 much will be left a:p;a) s aq1 yx;jbh0fufter 100 yearfqaj ;0y1hsbpax; u:)s?

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:    
Mark Problem
64#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What is the probability ax /furx+2naepugd (j)3jj/ ( that an atom will decay this year if its half-life is 247xufxj/a de j (+ (gp3r/)naju2 years?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source wasio(m /x82+zipvf9f w h certified at $10 \; \mu Ci$ 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 min. Whb w2 ,c2lf;p; yjr z4w2ukhu)p migu9;at fraction of the sample is l);y, z 9;ipp4;2jwb lhmc22u uurw kgfeft after 40 min?

Correct Answer:    
Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of radioactive iodine-137xaczt0o40t v 0 is 8.0 days. How many iodine nuclei are nec00ot 0zxatc4 vessary to produce an activity of $1.0 \; \mu Ci$?

Correct Answer:    
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 ivkmcncv;4 0wgzi +u .1nitial activity of w vuv+nm01z.c i ;g4ck$0.24 \; Ci$. What is its activity after 6.0 days?

Correct Answer:    
Mark Problem
69#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The radioactivity due to carb pjxy:hm2i0 gnd4:wu:jqr1 1yon-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 ujmr:1p: yhyxd wi2: 0 gj1qn4a 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

Correct Answer:    
Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it tax*w9pac,5 hq ykv /vq.q;ka*a ke $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

Correct Answer:    
Mark Problem
71#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long will it take ag /ix(f8auw( b+paodd 0hr l+6 $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

Correct Answer:    
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