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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 parir v r gs113n9qifu+ l)0otg,hticles has the least mass?

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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom 8/2rq lad5ztv/+gw( yg4dto his

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleusrtp7h-+31qfw 12qkq;j tmt l c,*slgv consists of

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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 theswovdak1- d oz.i4 6f(p39s9sq ki0 hv 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 the qnd-rya . 1.q- 8rd psddhx1o*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 atomic masp61-cz hacw 9es by A, and its neutron numbehzc 9wca16ep-r by N, which of the following is correct?

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Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an unstable nucleu9 et rm;uhu;/xs, the atomic mass number of the nucleus m9u;rx;/ethu

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protonlqwoh j ,w*dc9nu01)wow.n) rs in 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 stable nucleusph-q u:(lfvn 1 because of

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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic number buk.or2 uny1x,(rlk,vit with different numbers of neutrons are referred to as kovn ,uy2.rk,i1l(xr

Correct Answer:    
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Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have ahtq17ne8x+n32( enq c0 iktbnuclei 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 define w,m (2qun3 wp9komaci1ij t/w.qv,3gd as

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Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separate protons and neutrons, td- ki33el01bj+cgc j jhe total mass of a stable nuj1jlk0g d+ic3j -c eb3cleus is always

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Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nucleus, energy iyhu/.bt ,ev3m s

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Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is contxw vh*3v,8rmp4 vpjy2 ributed to

Correct Answer:    
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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy pemd fr5-et5 re9)(baqh. pzf l04ko 6gjr nucleon is

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Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucus) f 69uhua.vv g. (ldh1hb)gleon

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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerning tx5dsbl 9gbpp)7 z+cb5he nuclear force is false?

Correct Answer:    
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Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, the nuclear force between adjacent pr* ) f5kb df**kgno8ajxg zalx470dz4iotons in a nucl5*4j 8 inkzla0zxbd* f)oad xkf4g7*geus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetratwe* ky32 rm5yru /kk1ge

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Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetratepi8zat1i+p* c. fs6hcn sf:c3

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetrmkn(4vct,8uw7-3l *ptuulj aate

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also known ) dkfr 49dp)rsge+4hyas

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Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is alsee7n r 3.)(fojj4 fourv .gh7yo known 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 knq di6 ym-xw2/oown as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be ts nac8bc+cqt2wdqj;-/b.n . attracted to a

Correct Answer:    
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Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic (xpch2 l.c*m s.x6z-racfq1 b 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 ato.yrvv8ga c:,st0,+kh )7 pwihkc8 ttmmic mass number of+t, g0)ak: cs kvmp.y7 wht 8t8cvi,rh 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 froj8d1o b+ it 7k)ivqx;rrq -)adm an unstable nucleus, the atomic number ofk i) jo-1+ir 7x)ar8qdvtqb; d the nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 represa(c3 iujgkw-5 cka. m4ents

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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:    
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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 i*j4sef. dim6rs most nearly the same as a gamma ray?

Correct Answer:    
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Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emitted from an unstable nucleuh;1t uz2hd3 nmml1i.us,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the most massm37t shel01 jf?

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 conserved in advp.2e8xoo3*s45wnrmd 8 wx ehdition to electric charge,sevwwo4x3x.n 2p *moeh5d8 8r 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 as itc0 *ofclu nhimd c.u+)*:+l za*zbyl/o z., fi 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 sn 4cqhaf2b k6)ingle beta particle when it decays. When this happens, the resultin) hb2fa6 kq4ncg 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 fiuhmresm8,b gz 5 *aiy8m;gw 7+eld 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 that uses ssg/ x22 q0f7ax3xesc g:3i)mkmftd5liquid 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 chst :atou;+4 niambers because

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number o3qjbxgr0q,(6carn zql2+o/n f 14 and atomic number 6 has how many protons?aqj ( n6+zq3rbcg02xr/ nq, ol

Correct Answer:    
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Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 anqxiseoq(,htd j0 c( .:1i ;uhdd atomic number 6 has how many neutron.( ; (hq1dsiic he0:qdt,uoxjs?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 anmx0 dodf b-+ *mo12(hr kw/qkwd 39, respectively. How many nucleons are*dkooqm /0-xm1 rfhdww kb+(2 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 calcium 39 are 20 and 39, respeyx),dag8 ar c2ctively. Howygaa2d8 xr)c, 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 for calcium 39 are 20 and 39, respecti4 txmhbupzi*m499n/gvely. How many protons are xihz 4p*ut/4m g99bmn 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 39g 9ax8g o*bj1v are 20 and 39, respectively. How many neutrons are i*ax 9g1vjg8obn one atom?

Correct Answer:    
Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, the number /4vyoa77)h ij z5o jzj4gwl.uof 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 atrt pr-ci ma+ mk/t*5,par-(ek.lh:s?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomlfcaae 8d0zg xgx ,4(ot*d *qmu3 +vv,ic 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 d b (nq (vmis47z6s1tzkqx/9v energy of $^4He$.

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Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remove one proton fromcnhbh h*u q8 -*nkd2+f $^9Be$?

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 atomiuub3kx5 nyy54 nd*5rgjrd,,iki okd i: -)/otc number is n 5yi*tkxd4u k nr,: 5/i5oukg)jodrn,di-b3 y ow

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 ogfrg.4 yu /e wqr; 8+kom*my7undergoes alpha decay, what are the number of protons and neutrons, respecm oeo+y7mgr/4;r *fqu y wg.k8tively, 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 det. h 4f7v2yeu/m.mcos9r:y gecay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 . 9tf74mvoguy./ hsery mc2e:u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic numw c m.kr l 4dcen,v+m1*7oige6ber 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 le 1 y 3:bkxcft+q4 ww-rdey.2xth8l rt0ft after 100 years?cx8:w.+qf-te ky dtbxwr3h4y 01tl2 r

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 probabilityg b*mlpsv*p7x5adslm/-o+6v .hq 1bc that an atom will decay this year if its half-life is 247 .1mo7vm dgs q*p/5 -6abp+cshx*lb lvyears?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was cert (xocg)r mmlakk,gl .z3*xj/6lwszlf077 ph8ified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

Correct Answer:    
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Mark Problem
66#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive sample hasby1m vs;2d x3b a half-life of 10 min. What fraction of the sample is left ax2mv; bysb1d3 fter 40 min?

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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 nuclei3gombw+igkw-az 3m 58 are necessary to b5wk3w mg g8io3+maz-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 habphd 4*5ek7pfbhc u (5 9aijf(s an initial activity of dfhb (bk9a5up5j fc7eh4i p(*$0.24 \; Ci$. 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 to carbon-14 measurjeu* ux-c)vi.ed 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 estimxu *)u-iecj v.ate the age of the artifact to be about

Correct Answer:    
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Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it take7fp0 (hz4 ln3nqrq0 en $4.0 \times 10^{20} \; atoms$ 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 takec8n, by(5h:mexo2 -s rl//bznn rnko + a $4.5 \; Ci$ 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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