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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 le o +b4vumz5nph-j 9x6mast mass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom 3 el,:yz hjrr(is

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consis9tbk0ryr b i)7h -o:tkoqasgn+7q;i4ts 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 the number ;yt,h(kzw4xr h*zsq) *h/aya of

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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is det7g8.hh 8xy g 8/0 ,fraxiidyhyermined 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 30tx+;+ -vg4 z aithwkg ol,lv/*pzw7p b zqf3is given by Z, its atomic mass by A, and its neutron number by N, which of the following is correct?o,zghklwx3+b-/i w7fp 043 q +v lgtpzv*;zta

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 mapc0:w bge/ 1j8 b-ruviss number of the nucleusj-gbw8c1/r0uvb epi :

Correct Answer:    
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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protonft*imt d9 pf27 59f,lwxp sg4z(pxp0zs in an atom 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 nucl6 phw-d izmkd*ut em,8b0ub0zyyp 2-: eus 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 are ref(e5h 3usuu ow2erred to 5 2use3hwu uo(as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nucle;u:i yt4dtlps2 :f2jzi with

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit ispu7ow(lrwh 2lick c4v 0+4wk0 defined 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, the total mass( tsjqaizvltj-at3-k s-psf9 go5 1-)c4ndz) of a stable nucleus is aloqv(j9s-5t j- c)zs3)d-ap4tfkin 1-z ta slg ways

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nucleudvn 9.i(4i6 kkzl agum1) 2bdrs, energy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is contributedm0k( /s gflgq *8:knqdba2zq; to

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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy pesyeq0ksu+/vdrf:gu0k6yh z +49 (t ny r nucleon is

Correct Answer:    
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Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nu,pbv,-d-w ij*xzfyc ,cleon

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements co nzkr s0fvp 1tn l)7ivuc8b1:59+zqv wncerning the nuclear force is false?

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, the nudd:fm-1 lkgn ae/,-jxmo2 y.x clear force between adjacent protons in a nucleus is- xdayonfl/ gj.2 :,x1mke md-

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetratey1tauks 9(e-tf nom:-

Correct Answer:    
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Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrat;msv;ll;y me vug ;q;:e

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetratk5 x;rbs pa.0qa zmh8;e

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also known j s6 46sle+ayoas

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Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also knowx948/z q 7j v4a ,wem9rb0vodagcjt0xn as

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

Correct Answer:    
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Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also ukv hlcjs,.f( dgb7- ia g n,n7uq;m(-0wvey9 known as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attracted p s228k x3t1dtbc t:djto a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic *fsh tfe33(7 :icr;n5h0(tp aqxbivsmass equal 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 fm7y5t dtyp59from an unstable nucleus, the atomic mass number of the nucleuydf59t y t7mp5s

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted antodq+ 9w q,/a rwo,x+ ;odz ds:4,knfrom an unstable nucleus, the atomic number of the nuco+ /k,xzw,dnaq a9dt 4qns, wor:;o+ dleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 represenue55ttw3 * rp2n2my orts

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:    
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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:    
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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 is most neazr61 pmzm1v 3p)1 cgcorly 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 f0tq dg)kw f 1dc:b/,mvrom 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 the most 7 ba3ehi.yd b/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 cehnf.vzs-y: dj1/n 2 konserved in addition to electric char-yvkn2fd1 : sh n.zej/ge, 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 radioactiv; x3 kjdcx)h/+(ydkcte 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 nucl2j s7+zorsx eku4s93x eus emits a single beta particle when it decays. When this happens, the k+os rx2s47zue39 sj xresulting nucleus is

Correct Answer:    
Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses a magd x.b 3v+,tcojnetic field 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 pgvv,h:p;(qo iane4r 7)oy . v3wpgf6uses liquid hydrogen is a

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced w o(zxbm.jcjfees+ 57k+1 i,cby bubble chambers because

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 has how many proto)v:asemet + +ons+asm tee o:v)+?

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 and atomic number 6sm ,bykz)/mc(9*o sxk has how many neutronm9(sxbk,/ ms y c)*kzos?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 arec6w 8h sej*(qy 20 and 39, respectively. How many nucleons are in one * (wqs86yce jhatom?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 vew./glz it f3bx 2 y7s..ru*pl(lp*kare 20 and 39, respectively. How many electrons are izb2xlgp .vesk* 3/*i7 yrlw. lptu(f.n 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 9fkx,-,y xsid 39, respectively. How many protons are in one,-d9,x k sfyix atom?

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass nlvc+sxrn.-+ p0xuk 60posm8lumber for calcium 39 are 20 and 39, respectively. How many nvl-l+op8s cx.xrn60 p u+s k0meutrons 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, the+m-rm5q i 6vy0cov pb; 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 nufe hz2y:s:wqrn kl 5/.cleus?

Correct Answer:    
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Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic number 15 has an isotope of mass number 3-47nn t01b opk31qdzxcdl h3o 2,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the bindingya4t2 p6lovqe a 73e+j energy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is req1lc,-vvh nu k9uired to remove 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 0 8j )twpad:a r)r a4o)x6xdhsthrough alpha decay. Its atomic number is nowd hx:)046r 8otd)raw)pax jas

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and 249 nucl7nw (x*)rxanies m u.9eons. If it undergoes alpha decay, what are the number of protons and neutrons, respectivelyxri7m )ew.x(s9*ua n n, 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 b3 rs mthe9+rc0y beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a m+the mr3r9 0csass 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 undergoz bf-qxyt1t7-es $b-$ 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, h:02;xjlvayks ; dw7e zow much will be left after 100 years?a 02x7:lyw;e;ksvz dj

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 ith+6cg wj1gauh;7d ilel/ c zz7 x5*,dds half-life is 247l,6/*7c7idl dh;zujg g5 1e zc+ahwx d years?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certi8q a604+ 3gdsntunnpffied 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 sample nmus,5h2 b36m xejm.q j:e3uyr5 z0e qis left after 40 35qb 3 2 qx0mu5mj neryuehz,e:.6sjmmin?

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. rd n pd0u)viw-n(wc4, How many iodine nuclei are necessary to produce an activity o, w) ddcpnri(uvn04-wf $1.0 \; \mu Ci$?

Correct Answer:    
Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substance with a haajeg; ) 63m+w7 pxlnnmlf-life of 3.0 days has an initial activity of newnl 7 p+m) x3a6m;gj$0.24 \; Ci$. 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 measuehbdy ri13f4(l i,vx3mdl :6 hred 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 wbllryd ii v(3 h :h4,mfxd31e6e 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 takezyhw/,)nq dc. wpqsx00 z+i.i $4.0 \times 10^{20} \; atoms$ 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 7q,tnrp989bp pp:qgx iu31fc $4.5 \; Ci$ 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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