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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 l 1iq sdg)mn6ku9 yw6)neast mass?

Correct Answer:    
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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom is. srg18synqj9+ceza6m 4c4xw

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus cnk9a :a u ulr66*hcgz0onsists 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 determined by 4 s9bwt ns5x5b h8mmy0the number of

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is detemv0, t)1rn6tnie qt;l rmined by the number of

Correct Answer:    
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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 atom55y +ufr8httn +a4q40hg lo hcic mass by A, and its neutron number by N, which of the following ish4c+8ahtu5+ 4nrg0yof5 qtlh 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, pi7euh:o nl8n5f9ymn u,bb13 the atomic mass number of the ne,no y nl85 m7fibhu:1bpu 39nucleus

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an ato/f v(m bkz8 8yuwl3ym b8r*y94mcx3njm is

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the jex/w 5 q 9*gd-hzbtz7size of a stable nucleus because 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 yn1wlx /u93ig are referred tui9l x1/nyg3wo as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element hadd7d54ke/ kbw 2/vy stve nuclei with

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defi9t6 cg v*gybbi:m uz1/u,wot6ned as

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separate pre*y2;r;mop-feinn w3dm) 8m eotons and neutrons, the total mass of a sti)f 3*yeewm -dr;8p ;2nn ommeable nucleus is always

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nucleus, energ rui p)u7z+5p,mkzb-xpam.1y y is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is contr *9r4tf-mmf81tbr id jibuted to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleon 6wzf bw)advg3b xo+lz2tz 4kl-76s1e is

Correct Answer:    
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Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucajgw4sb.tx1aj7sr7aa-8q (2 * lmc c qleon

Correct Answer:    
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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerning the nuclear force i//l0 mv4opvq hd+ f,res 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 adjacent pro;*u14( hrsr 9 yfa4owfzi d6gotons in a nuc(z;rfo 4is69oyg d*h14a fwr uleus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetratm5 1e x1(brsv tty2lf4e

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrat tqm rx/2zb/4xe

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetracwrgfd)3m,5a te

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also know)he4 6fr3zdw jn 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 known+2 l; s,c*br1i3jk svu;qmt+xt y:ym m 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 know:41ck(svfm z bn as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attractesmlbz7hpht r1s*w ;)v.5ya0r d to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic mass equas; bo3gyisv: :l to

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 unstable nucleus, the ato4k k,f7:l7gdmq 1wp iimic mass number okdfi 7mqi:kplw,1 47 gf 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 an unstable nue3ops2) - eo syjmo6h9cleus, the atomic number of th m 3hssjoooe)9e2py6-e nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 representscpmm:,, 0 q5qp)rvbar;pb2do; 1vqcy

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:    
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 gamma r 0 -x30bchhi,1 eznkphay?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emitted fromt)cs:x 4aq.5m zi9 uqv an unstable nucleus,

Correct Answer:    
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Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has thetetb4mgw: 43ox:g-l y most mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decay, ,b3e 0v94mjyh dd)nex what value is conserved in addition to elx0ybe vjd4d n),9me h3ectric 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 radioactive substance ahe a -ubbb49n)s it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 is often us) w1g2)sto qum.n n+xa (fe1bped. This nucleus emits a single beta particle when it decays. When this happewneq+ foxu)b2.s mat) 1gnp(1 ns, 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 charged parw5 dy+0pqj4zeh5x ln :ticles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses liqkxm 3stu.3hpsgp0gsk4))tm :uid 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 b vd,+u/l7 orrn:t wew1ver3(t3a n-x fecause

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atom1hn ,u7wzk7.kmbr9 a xic mass number of 14 and atomic number 6 has how many protonsk,mwkb7 1h7. xrnazu 9?

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 manz0ix 0 b*hma*k iqc*n/y neutrons? /* bii*makx*h0 z0qcn

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for ca xql 38h1ioi5hlcium 39 are 20 and 39, respectively. How many nucleons are in one athih51oq3x il8om?

Correct Answer:    
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, respective81u,-i.rzw*dk ors)bnzs9 xk :x1eix ly. How many electrons are i9k* uk zr:s )w.sxnoii-brxx8e1 ,1zdn one atom?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 anddj) b idinlg 6f*x0x8: 39, respectively. How many protons are in one ai6fjbl)g:i0dx * d n8xtom?

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 20 and 39, respectively. q0:hz e) gt 8djs,ka1jHow m:t80jqzgha, esj ) d1kany neutrons are in one atom?

Correct Answer:    
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Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, thwg2mjf7sdiklb+.)*q/9mw d ne number of protons, neutrons, and 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 nucleu *8di urp,9,c)o i,0q u:f ah0j m,c3hkpjcizqs?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic number 15 has an isotope of mass6qx o vsx5.6lnt ;o2ezw.x;qs number 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the bindinrds+3k trk/7rbghu zu0 cye qd4q796 )g energy 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 protoc/cusod*mi .0xt: pb (n from $^9Be$?

Correct Answer:    
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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 numbec yzk -lkv;g:x:1cwy2r is nowx21kyv :: kcczwl;gy -

Correct Answer:    
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, what are kht.(ibg7 hffa.m5rmc( (y 8 hthe number of protons and neutrons, respectively, in the daughibfa .rfcmym 7h.(gk(h(h85t ter nucleus?

Correct Answer:    
Mark Problem
60#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A carbon-14 nucleus decays t h1yj:(ch-yzzo a nitrogen-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 a mass of 1zyj:1zh -(ch y4.003074 u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 6 undergoes gbl/jr s0(v5 q4eurj 8z-lc0i $b-$ 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 i gd+muo c7jw 1vi:8u(years, how much will be left after 100 yeariudu87gov:c (mij 1+ ws?

Correct Answer:    
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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 that an atom will de/-pf/ )usiad icay this year if its half-life is 247 ip f/ad)su/- iyears?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source wass(va x;7pspz4 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. What fraction of the samot qk gz+wd zsc-7:)+aple is left aftwk+gzdq +)z s7t o-ca:er 40 min?

Correct Answer:    
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 ni*i n;s0*wix nuclei are necessary to produce an iw xn*isni0*; 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 sugl z:s (6:4(kd am/vavjo66h,8oow 8qc akn half-life of 3.0 days has an initial activity of 6:z,ksavqa uoka8l/ :s 6(nd v(c 86om4gjohw$0.24 \; Ci$. 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 carbon-14 measured in a pi*(g8.2s cao yli8jgw vece 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 produ2 js.ga 8cyliv* w8og(ced 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 takw yf8b 4(i0iaae $4.0 \times 10^{20} \; atoms$ 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 a qkb lwb2*81s yie*3ew $4.5 \; Ci$ 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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