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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 particl z iimu2 hn36 lc-/bang2yaui,(1 bl.qes has the least mass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom isdibhoj4s59gc7: sy gt: j4 tz8

Correct Answer:    
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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consi 04cimbwbd9hkk 1d5h4 i/mle3sts 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 th wk/0k3s2xpthe 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 detzo h 1jd4*zo:mermined by the 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 mass by A, and its neutron-bkznr,2o7o jie xl,mef3y.pb( * g7 u number by N, which of the followingp2 jonkb7 o-,7lmexb *(.g,fzy3i u er is correct?

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitteduljnn+ez7fn3nu1 (:p0s un3m from an unstable nucleus, the atomic mass number of the nuc1un3 3njmulfnz:ns0 e(+pu n7leus

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an atarsvc(us/0jx )m rv9- om is

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the size of a stable nucleus benn ez5n s;z*o,cause 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 ;x5rttrniz03 *gt4 hr9.favmgq y * 2hnumbers of neutrons are referred trh m2gv5*09*3r4itrh fg. tqn ax ;zyto as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nuclei wio(v. u8cg owtb3( xg2hth

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defined ase(*k7 o ;owugi.pkckj7dqcc1:b3 +ft t k.rc4

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separate protons and neutrons, the total*.gl qc;e+* k(f qkd o*vxtrs4 mass of a stable nucleus is ae*lt;+vkgx .or*sc4q (qkfd* lways

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nucleu5ag/p i0cy-sx zb ki1.s, energy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleuv cy4;ffhx 2w7s is contributed to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy pew3jdql1*h za*r3 d57kwcvv 2sr nucleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nuclec k4 ,xdq*zg :r)qiw9yon

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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerninox ew6 f5/x+vmg the nuclear force is false?

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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 adjyj0wi wyop5a.cas/- / acent protons in a nucleu a-wos// p.5yyjca i0ws is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrateezx o)v77 1brb

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrz/u+p g l5ls-vfe +uekg5i0jdf6cf, s7 c i(.qate

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penet cojbt6-b17xj rate

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also knof1xtz i,,)elux70e/mus o lz 1wn as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is alsoh*u5gaw 4efn w zq5+8n 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 gvh1 lwq r24pmlb:uyn+)/3cc known as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attracyf d;f(o 4z;tiih y)1e s5b6vcted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic mass equalj 0n,zdpk2dbq)f:gq3 3y a r1f 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 atoq afpwa2+ .0sbmic mass number p2s.b0fawaq+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 j(q .6fqi1s0l -vcgct an unstable nucleus, the atomic number of vji0g6t (1cf .sl-qcqthe nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY -(oy8 r9-av:xfwzzzo)k x4iq 1 Ma) x 931.5 represents

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:    
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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:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following is mosuqrqb /h 2tl civ8s/)(t nearly the same as a gamma ray?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emitted from an unstable 8*1aeay5bwr ynucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the most mass?c* bh/e2dalded j qy9j3,31i 5un-ap x

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 9yl kx2+cn3mwk c19do.s +cob conserved in addition to electricdc kbmyl2cckx31+ w.onos99 + charge, energy, and momentum?

Correct Answer:    
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Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life of a radioactive substance as it6v )-nc mhgcuw6dhoj e 7.4o(q decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, sy rd64fmy3:t carbon-14 is often used. This nucleus emits a single beta p 4yys rd6m3tf:article when it decays. When this happens, 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,n;/h: zr* npczhqf0 f particles is a

Correct Answer:    
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Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that gvli5l52 .:bvlf-kthuses liquid 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 becausaah2m )u6 df h8jx((nm)xx-ym w)l x(we

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass numbefk l;ah y,l2f; )+o/3jqb 2o syd4llhbr of 14 and atomic number 6 has how many protons?fl,h; o+ ;q 2b4lykal f/jlhoy 3sb2)d

Correct Answer:    
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Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass numbejem6d . p1q.gtr of 14 and atomic number 6 has how many neutronsepm6d1 qg.. jt?

Correct Answer:    
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Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calciumw.ubu95x nktsb(3p9 l 39 are 20 and 39, respectively. How many nbk5u9t.l9up(sn bx3 wucleons are in one atom?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numbe.m:hwtvge: e23 vfo4l52w g xlr for calcium 39 are 20 and 39, respectively. How many electrons are in one aw4gxemf223elo . :lvth vwg:5 tom?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number -1yyuqd:u un,/0mie lrf0 bq0 for calcium 39 are 20 and 39, respectively. How many protons are in o0/dm-ye qi 0yrn:qu bf1 ,uu0lne atom?

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number fodthzkq.; s u gqr)l:pj p1,(p:r calcium 39 are 20 and 39, respectively. How many np ;p:kdp q.) l r(zt:ug1,sjhqeutrons 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 protonyiet;5uqa dp/c o 2d+xun8a :+3xsd5x s, neutrons, and electrons is 41

Correct Answer:    
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Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are) cvr8zh 8ucv3 there in the carbon-14 nucleus?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of ato1gc p k qy)njhe0yi.uy*z 0:+smic number 15 has an isotope of mass number 32,

Correct Answer:    
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Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding eneit( tm7tda*d) rgy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remot k4:anlmr j2ck537m*imp b+ove 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 atomicli 692pol/qae number is nolo9q e2/l6 iapw

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, what as:f) m( -mbofkre the number of protons and neutrons, respectively, in the daughter nucmmos-k ff ():bleus?

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 mu0k*;c hrmid0kc : u(vtch energy (in MeV) is released if carbon-14 has a mass o(;tc:i0 k*r d mhc0kuvf 14.003242 u and nitrogen-14 has a mass of 14.003074 u?

Correct Answer:    
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Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic n8l *0xi8unp2q 8nz*zkf mw(squmber 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, hxyz1ung um1)k .-s a9mow much will be left after 100 yearsku1n. ug sza-1yx)9mm ?

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 that an atom will decay this year if its half-life0t6ot fp1n (ts is 247 yearo t0ntf(p st61s?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certif-2jc8r 5nwxkm ied 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 has a half-life of 10 min. Whath 7, .v: qrc.2;7ymru(vpu d lwxz9od9z dl4kr fraction of the sample is left after 40 min?: z rl .dlv.o,2h7pk9 4q9ru7;(ruyvmwddxc z

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 t4./e)a wo ck- smr(aeiodine nuclei are necessary to produce an k - )(e4caew/s ta.ormactivity 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 3.05n t (nu e k,rvd*g7mto13.mrs days has an initial activity of e1u.grtms5dk(*m 7 tnnovr3,$0.24 \; Ci$. 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 measurexfy 5w3u0:msrd :m,g xo ps*r5d in a piece of a wooden casket from an ancient burial site was 5ru:x s0wf s:rmg dmy5*op3 ,xfound 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 the artifact to be about

Correct Answer:    
Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it takna+s41gmo, u le $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

Correct Answer:    
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Mark Problem
71#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long will it take a :zczs zy ty3 9d9p7(fl$4.5 \; Ci$ 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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