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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 particlgnhwxl aeu y*,/fl4w*p u7+c1es 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 i9p f;*i n1b*qcr doy-ks

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus c (yxc94lt8yms6oc 2cdonsists of

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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is determine k(f vrg*4z:tcp j1le7d by the number of

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is dex(w.p, 0 0p1 ts2yzkn cn7 :nmgnfr4jwtermined by the number of

Correct Answer:    
Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an atom's atomic number is given by Z, its atome lzp*f oamkq.d0,(*gic mass by A, and its neutron number by N, which of the following is corre, gq(eklmd 0* a*opf.zct?

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Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from car f1e6c)s-yan unstable nucleus, the atomic mass number of the nu6ce1c)yr fa s-cleus

Correct Answer:    
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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an atom iszob)m+x7 0j bu

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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 n 5alfs, -mrz;rucleus 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 but with diffe5)zv (c*k g;m:0do9wenqhna e rent numbers of neutrons are referrnv e)e5h:9; zwc qna0*( kmdoged to as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an elemeqrqo1y pxl*8( nt have nuclei with

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is djncym*hgvd6.;h39+ 6 jogh-ypq cfh/efined as

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its sepn8*9ufn z- z,g1vjq ussqfyp(b:2o+barate protons and neutrons, the total mass of a stable nucle*bz z2,q qu u8+pn1s(jyobgn : -9sffvus 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, enszi3 dqx(; u8t l91y qktb-9caergy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a y;qzcj r28m3agg* ,ft nucleus is contributed to

Correct Answer:    
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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nx65aaso f);/xvw* gmyluj)j 7 ucleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleo2i:kbyx 8z;jwms4l/ l n

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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerning3 04;qbjob 3xt- etiik 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 nuclear force between adjacent protonsk-;obv 2mhcbtc qej4 -p9ob1 , in acp ,ok;e-- 4vohq1 jm9b2bbtc nucleus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrat yx*jw+6t7qku e

Correct Answer:    
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Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetratey -pdp.*n;hl do0kawv51hq7s

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetrat 8)6l0.3l(rxdh ycsevz ym(e de

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is alsr88jib8 c3x17nv0*hr mw dmppo known as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also known f3jiy1nj/o 7( rj/lxoas

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 known as/k,fl0mi ls t2

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be at2s rc:p+ :qqjttracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic mass equnai4n k q/ 9 .9,yd *ignzlui;qsc59bpal to

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emqk (nc+n-vd7/ ocuj *qitted from an unstable nucleus, the atomic mass number of the nucleukcu/-oq*+n j cq7(nv ds

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitfcp-l+, f47hvqzq8,*3 marz n/lr b.d qj2vk sted from an unstable nucleus, the atomic number of the nucleus vz2zf.crdhl, q8-m7l rq/3 ba ksp+f4vn,*qj

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Mo.v2da*t/8m j dnam n*a) 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:    
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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 most nearly the same as a z1: f)thbv h1 4(cwhfcgamma 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 w10w4 tly 4bj9r vto0zunstable nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the most ma;pcc kla2+04tmda s ao6x6xlvlb 7 1t8ss?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decay, whara fz3ti d, .+3*55tgcpgcwtvt value is conserved in addition to electric charge, energv3tr, c pw+cz5a5tg*tg3d.f iy, 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 cl 8g*43:ogxx6dbuuh:jd/v 3 -ili uf as it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive datingzes1gxsms9sa2 5:7b pkx6mq2 , carbon-14 is often used. This nucleus emits a single beta particle when it deca gme1kmp9q bs ss7z5:2s6xx2ays. 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 chargoklyj*3r:p/grf6lm nva( 5u) ed 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 uses liquid hydrogenrx.0zvao* zl7o 1my5 r is a

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replay3ua/pq9 ,1hht bi/1hx) eg nyced by bubble chambers because

Correct Answer:    
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 p6bb 8io/l lt9ul)- dogroton9)ltodbgubl86 /i-lo s?

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 many neutr91bqwmymb :n3obnq:y9 w1bm 3mns?

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 and 39,dn5.mf m vz:pdw6 u;2c respectively. How many nucleons are in one atom?wdm:;n mc f.5upvd6z2

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numns+;, vglf8qw-v/z nwu*j6o+f u/gqeber for calcium 39 are 20 and 39, respectively. How man68qws+j*vnf+/ezg,-;o nfu/ wu q l gvy electrons are in one atom?

Correct Answer:    
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Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 andrmk+pfrba p-y:d f3 9o9l i1o/ 39, respectively. How many protons are in one ay dik:-pffrm a/r1poo+93bl 9 tom?

Correct Answer:    
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Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for caltjtdr /eb9h/8 o,srs4cium 39 are 20 and 39, respectively. How many neutrons are in one atom?ot8 4s 9js/rrdb het,/

Correct Answer:    
Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, the number of protons, neutronsfkr )j 0badxk7t 6bx6v .gkhw.,p/se+, 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 carbo5(-)*rfo4sjrtsy)- vsvoqb a n-14 nucleus?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic num24tiwa)y309c7oteaw zq l3n v ber 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 ejvs./ bx9 nokfxh1:qy 1m5hn(oj )qp1nergy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to removeg,1 5es+*xr:oklzgdh 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 atomi j1se-n k0q4fz(v(d(z tqcng(c number isqne(z(4cq(-fdsjv01(t g zk n now

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, gyv4jt3(tl)3;r voqf what are the number of protons and neutrons, respectively, in the d voltv 3g )q34(yftjr;aughter 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 bybv; pgj b,w sw;n y(k*ux:5s6v beta decay. How much energy (in MeV) is released if car56sb(s gjw *;kp,xv bvn:uw;ybon-14 has a mass of 14.003242 u and nitrogen-14 has 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 ,6v,xkeq xif. number 6 undergoes $b-$ decay. Its atomic number is now

Correct Answer:    
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Mark Problem
62#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the half-life of a material is 45 years, how e+xniiuv m sl 1at7ozok8* 7)ic8s+3nmuch will be left after 100 years+) e l +7*3io8nsso7u1vz icaxi 8knmt?

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 doy+5nqo 22cmmnv5 d hb,zxc8,l co8(becay this year if its half-life is 247 yearsmcq cbd volb8,5xy5,h+zono2 n8m c2( ?

Correct Answer:    
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Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certified at u-7rjq3k b+ ge$10 \; \mu Ci$ 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 fractionumt+n5 z/zcs:/4 bhm;im :pt ni0; hsc of the sample is le 05+nniu;c ;sc m/t:ishpmz4bh/ m:tzft 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 dayp1y :ytq;/yyl 1pog l5s. How many iodine nuclei are necessary to produce an activity q:;o 1g5pyyp 1lyl/tyof $1.0 \; \mu Ci$?

Correct Answer:    
Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substance with a half-life of 3.0wua. sw k-q+s+ days has an initial activity of q-uws.a sw+k +$0.24 \; Ci$. 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 t wqe-w47x tkv6o carbon-14 measured 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 -wvwkt64xe q7 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 tab9qyd 0 yq2ye4ke $4.0 \times 10^{20} \; atoms$ 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 7-qx uusbf;a)tbvol9 oo e.,8a $4.5 \; Ci$ 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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