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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 hap5bnd- m m6uy4vgiq+. s the least mass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom isx( f*:qqeq;2jj4 4b to(oowtt

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consistsx1y z7u9k.3tj okn+x;vv-s/efui 3m0 .g r qke of

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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic numbevx7 * oz6znvt2r is determined 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 numbe:pe 3r-l71txuigqvim. a i;*tr is determined 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 l*c3.t*n kdsqga fzts*g8, 5jgiven by Z, its atomic mass by A, and its neutron number k 8js, ts .ld**c*3q gzftg5anby N, which of the following is correct?

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an unstable nuh: lohi/nu sgg4jv,wm/0/ j+fcleus, the atomic mass number of the nucg l /o0m nuis +/hgj,w:jh4/fvleus

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an atlw /a)fd zt4m-7ivl +tom 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 nucleus because cx)l)wbv j0ogb e ln /l,pf;20of

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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic numberid7 l8zn.lcr 5z 3p6u8 (stjpa but with different numbers of neutrons are referred 58 n sjp (ldui8z ptalc.6r7z3to as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nuclei (2 s;su.adzezhk0k3+hs( ,yfjs9ern with

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defiknm cl 7jr/h90ned as

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separate protons and neut6rrlo8c+9r ede/h kz1rons, the total mass of a stable nucleus is zlh69eo 1rr+dke8 cr /always

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nucleusyorjk.r+ i;l ,v 5r,.4dxcgyv, energy is

Correct Answer:    
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Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is uv:s 0pr)riva*8o,95zs5s 4zv fvppgcontributed to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleon isnd :d+ s( *h-fknd9 i9qd6orfq

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy pr l/xe)+ s;,pe3hg rther nucleon

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.x qrvtm-lmmc w8f), fu 2:a9*yp)qo h the nuclear force is false?

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrosbx-3zgbo*m0kx:8.w ni65 ps yi5oqjsa /hlc:tatic force, the nuclear force between adjacent protons in8k 650qo cgla:mbsinji:s hxxw5yo . pb3/-*z a nucleus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetraty xy9za o4zgazx8:a)*ml8c +xfk9 ;gae

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrat),fg)ha )g jdjo2x 8)a7tail ye

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetraterkpq hr164)ejy,jhpza-x-s .

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also known as,mu*7c.g bzy y

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also knownzbyd: 4a*i ;dbgzd8d fubl682o2z 6ui 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 kno9 v *bctzg1(prdc+r8 itl .(xwwn as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attraaib i;z.r /b30x*-zrtww8gq zcted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic mass equal to y4porbfg7;az71qv:u j +m8 fe 3kusk4

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 mass 2w wu*h.qs8+e-yi srq number of the nucleuh*8 2y+-i sww.rsqequs

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from an unnrm*) a-/ .zedyro(cystable nucleus, the atomic number of thecrz*amenydo- /.) r(y nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX -i2b y,fuz+bk( MY - 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:    
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 is most neaw0ye ustq;f t 2/z4j,irly 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 nuclenolu.(78qf.ay9i9hjg aq5 u d us,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has t-zv vuuz/6u4zjy2lbo 0n (l.xhe most mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactivenci*-j 3dbs)j decay, what value is conserved in addition to electric charge, energy, and momentum?3ij )j*cdsnb -

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-liid .mekb;yb 87fe of a radioactive 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 nuc ;nvw6l0 0lcayleus emits a single beta particlvw l y06nac0l;e when it decays. When this happens, the resulting nucleus 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 field to curm2+ /pb2q aqjrve charged particles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector t c7tavr+zb f03hat uses 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 /2meyaq 62vo-y t. +)gsaxjcbbecause

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass n.wq;g0 oyi vod 8ti302m svvng;:r5 egumber of 14 and atomic number 6 has how many protons?mos 52:ngq0td 0 3vygoi8.weg v; ;irv

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 number2o t-ag w g-80c,qcauf7ddxk) 6 has how many neutrons 0 g8)2gdcq7wfuaxokdt -ac,-?

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 calcium 39 are 20 andgbz)x4+j hr(p ;-u wee6lz r0r 39, respectively. Ho) g-x+;rzehj6ewu (pb04 lrz rw many nucleons are in one atom?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number (lyc)oojbe3cdiu/)e6b,1m v for calcium 39 are 20 and 39, respectively. How many elecyde3lb )v iomc/ 1b6 o,ej(cu)trons are in one atom?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numbef: r3g,uzw eb.r for calcium 39 are 20 and 39, respectively. How many prozgw,f3 e:b ur.tons are in one atom?

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numbr9f-y3gk-ma krpe2b 0 er for calcium 39 are 20 and 39, respectively. Hkb9f r-2rpg03em-yakow many 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, neji9n j*gd-n/ eutrons, and electrons is 41

Correct Answer:    
Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are t g8sk4z:z5np2x3 i qm/g ln)+g3saniohere in the carbon-14 nucleus?

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 32z7z,qk9 t2mb q,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding en 3-yo)-fprspb ah1oylc /(tw4 ergy 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 pr50 (/ewikwzz-liv jb8rovt 89oton from $^9Be$?

Correct Answer:    
Mark Problem
58#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 8,me6+ eta*pe6x mj 2vp8 goes through alpha decay. Its atomic number is notp,m* jp6vx+e2eem6a w

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 decp 2b07svk l/lflw,:htay, what are the number ov2bwklf h/l ,0:l7pt sf protons and neutrons, 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 nitr iq ar.f:a;in3hkv4 -xogen-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 hai a3:4 nrk-x.vhf; iqas a mass 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 (d0hyzwj 1pbkj49v-i qa6p l) 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 b0 o3(bh7ed4mx x6txy1yew 3ry 6xs1vxe left after 100 yearxdow4 x3xs03yb ex1 x6ym1(6yh7tvres?

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:    
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Mark Problem
64#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What is the probability that an atom will decay thisx. l7j6c sftg6x3asp ge0k55j year if its half-life is 247 yeax j 6.7cjp5 l6geft3s5sg x0kars?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certified at mj+ad (9o/dfp$10 \; \mu Ci$ 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 10s)h9 ck7joof. min. What fraction of the sample is leffkjoo7 )c9.hst after 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 iodv*2(fl kbv di+ig ht33ine nuclei are necessary to produce an activity (dbki3+* 2vhilvtg3f of $1.0 \; \mu Ci$?

Correct Answer:    
Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substance wie8olz/ d)mqdvp5( 2prth a half-life of 3.0 days has an initial activity of lz 82peqmd d(/5ro) vp$0.24 \; Ci$. 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 piece of a wooden casket vj;aner rql4 bhr)c5,sog. .( 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 minutev(e.obrj5rq hrnc)4g;a,.ls . 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 takehvb 2 3lb,lk4vqa: 1kt $4.0 \times 10^{20} \; atoms$ 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 ad q- g)ke0vd -lvvec65 $4.5 \; Ci$ 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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