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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 pmqt+z/;8)gua4 c yhsld rpr- :articles has the least mass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom 9neqkm,t cm1s7 t*q/ zis

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus cs+;d1wk 8xr vgonsists of

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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number 502-r3bhkrfojqb jy 5 is determined by the number of

Correct Answer:    
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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass numberzz2 bbru)*40dt 5in9 ab7e qgz 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 given by Z, its atomic mass by A, and ite uw1 xuhpa) j 2e,0y+g5uohdqk3ye;+ g;0mbys neutron number by N, which of the following is +hwpm1oeg gy,;xeh 3u) ;5u0 yyd0+ekj2qau bcorrect?

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 mass n: y+f 2gtgiuef+b9 s;bumber of th fgb;+fg9y2ub te: +ise nucleus

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an 7yh lf c5ai(l5atom 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 ng4b ieitbev.pa. wm a34y/2)a stable nucleus because of

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic number but 47ff553vj 4cql ae8ys*pw nyf with different numbers of neutrons are referred t3p47ea jvyw5q5*4ysf c8f lnfo as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nu+b+,tsfyd /dn+uq7 wi clei with

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defined ma jep; yizob)t.bs3 ,7(c xd;as

Correct Answer:    
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Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses oy d1ub;esg.t8f its separate protons and neutrons, the total mass of a stable nucleus is a.8 y;1gtbds uelways

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nucleus, ener:9n1c e-4o.v p:yr nxexv60oav lq l8pxn/jw5gy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy ofp;p3bjf)s) ii a nucleus is contributed to

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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per s2a,( x06izet/hz w nfnucleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucle eup+fpho*l:0qyi 64con

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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following s hpzlwktupa2f,2 zu+/1p,agl4np2z-tatements concerning the nuclear force is false?

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the elect3ts w8,cn) q fih-nlcga31bt 2rostatic force, the nuclear force between adjacent protons in a nucle tt c-)hnlia8fq3nb2swcg, 3 1us is

Correct Answer:    
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Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetratez/c iy9+c mlj6cp7 li2

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrat(p5 fsoge+mde(hv 0*3 xg l)jue

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penet+mjh /n z,em1xrate

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is alsz5-ae4z ji xpe*om1.ho known as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is als3ld d1 qjm 1nb4- jzpd*t5-mpfo 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:    
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Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also k0aq+g1wc pd7vd/.yz t:x6 b scnown as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will m yhn1 bmbsi8a(ll62yg5es0: be attracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic massp2)/zwx;qd g4 t nl-fw *az9md 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 unsta(w 3q- fuj,tylemz8b;ble nucleus, the atomic mass number of the nucl3tmwy(8fel; -bquz ,jeus

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from an unstable nucleus, the av/qge-b 44mohk:eoy oso1rfruw: ,z0.+6 vsxtomic number of th: ,4my-qu4o+gof rzx 106h vs/ v:eobserkow.e nucleus

Correct Answer:    
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Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Mqxdibo7cq-9.t+t0vh o8d *n v 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:    
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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:    
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Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following is most nearly 6hq2/ qm:/xdbq tfu;j0t0ma f 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 fr1 6kmo1( f/ ti4gjkzdtom an unstable nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has th6nd c l/m 58hnr+hq z2toa-vh:a.(fzte most 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 conserved in ad yvi74uyztxeh5 3ta 5p4 3d(gsdition to electric charge3(4hg5tsva35t4i 7yd p yue zx, 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 it decajnd)7be. (xrwys?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive datinrw :o,m g)8vbl9-arc f 58ub*2cuay nig, carbon-14 is often used. This nucleus emits a single beta particle 8uc yam:lr5v9a2, )nbci-uwr b*gof 8 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 curvevr/ssoffejd:zblg(.92 : (e f charged particles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that userg n9nx mwx16 ,gp*uh9gp6x l/ 8zx,bes liquid hydrogen is a

Correct Answer:    
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Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced by bubble chambers becpo+8z 4yukej: ause

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mashkkv ; d,t/i54sa2 uphxvy:6vs number of 14 and atomic number 6 has how many protons?;k4sy/, ivphhkvd: tav 5u2x6

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 cc *hw(933a gz1l xpr l.hjup,many neutro.*l,(cr xzg p 91 pljc3hhw3uans?

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 2; yy 0pty;/35tec1pyj:ym vj p0 and 39, respectively. How many nucleons ar:/m;jpjc pey yy3ytvp0 ;yt15e in one atom?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number f cr+s/xaxml5 f, lz:a-or calcium 39 are 20 and 39, respectively. How many electr-fc sal:+, zlx xma5r/ons 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,qwd16 /zspe)gw+-hmq+5x m oamt b b,87l* ras respectively. How many protons arew6a t5mr/zm81bqlps-+dx*,gh w) 7abqs+e o m 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 39 are 20 and 39, respectively. *.mycjaf 5sk /How many neutronsac/m 5.fj*ky s 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, neutrons, andzd2qzi, .bq4 n*ryf.k electrons is 41

Correct Answer:    
Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are therem;ov1r i n*8tmi9tom. in the carbon-14 nucleus?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic number 15 has an isotope of mr)d7e yt f3r;(nxebk8ass number 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding energy of .9g-mqglgx;qv 2c/ux cns99 wwz b0j0$^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remove one proton .--4gxpsv p8dtfg g(pf tfx7 :u,ix5n from $^9Be$?

Correct Answer:    
Mark Problem
58#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 88 goezj.9x 9p jgsxrz*giaex,sjs io8bp+,l9.x5 0s through alpha decay. Its atomic number is ss8.ibjx p,x gax+x i9 .zs9z50orj,ge*pl j9now

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 allz1 umk1vp:6 b n.-vwcpha decay, what are the number of protons and neutrons, respectively, in the daugvv lb1cznu6.m :pw1 k-hter nucleus?

Correct Answer:    
Mark Problem
60#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A carbon-14 nucleus decays to a n 7t4w;r4em svm i.3tdiitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrog.r4dte;4wi7 t 3m vsmien-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 n67e+vyoa - 5x d,oiqasumber 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 - r (t;rt z66heux.dcw45 years, how much will be left after 100 years?ut- 6(r z6r;.xwedt ch

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 it4 g1v-5qsvbrsb7d 4uv s half-life is 247 y quvb br4gv5-d4v7ss1ears?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certified ax) bet f u:j1-7ze9rkut $10 \; \mu Ci$ 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 sampl0 cwtn1alu/one 6uf49c2rk l(ddr+r. e is left after 40 minf4c/a6(ol 9l 02ru.r+dw1 duc nnetrk ?

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. hsn m+hmp.i 45How many iodine nuclei are necessary to produce an activimn+54.h spmh ity 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 has an initial a);e70yj heist ctivity of s0eh; i)e tyj7$0.24 \; Ci$. 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 o6aizfnc .vni,3d ;w;lf a wooden casket from an ancient burial site was found to produc.ficldn, 3zv; wa6ni;e 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:    
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Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it takexs65 ;o ,2u2q6jgda8 j nmmajq0mp q9o $4.0 \times 10^{20} \; atoms$ 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 pw:0+yfgsqlis+m p.+ 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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