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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 l8icg- *h.4 rv*)rwwfc1eh aqb2bldy 2east mass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom isz *pbhxvu((1yyo(az7

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consist1 hs gh5 ka b/23bkr-ky*+koyhs of

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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is dev nsew0z0m:, rei hz7/termined 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 determined by the numz (7cwad)nq g( +3ik-zpb,yjvber of

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Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an atom's atomic num fr5wg5ed n),uh(tcd4 ber is given by Z, its atomic mass by A, and its neutron number by N, which of the followingr d)ct,5hen dgu4(wf5 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 nucleus, the atomic maf6sh. ne*im03bzrm5hr n 5yf+ss number of thee3i.*6fn + yh0zr5sn5mhrmbf nucleus

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protonsz,,9 k -sc/ lz hey:fjs00cdpv in an atom is

Correct Answer:    
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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 becaus uey(a1-uwtza2( 0xqo*bo 1yye of

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atduu/7 w3j*(yvvdmh4( hpwl k1 omic number but with different numbers of neutrons are referred to as/ld 7 u4kvpw jw1*yh3v m((dhu

Correct Answer:    
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Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nuclei ly2lit2 *hik. with

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is da6 6*jlpm2ci fefined 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 - vc f+kqn*eq9mass of a stable nucleq v-q+e fkc9*nus 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, ezl;n 0 uzm.4wxnergy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is contrijrs09)z5y extsylnsk5aa*dk -f88d .buted to

Correct Answer:    
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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nel/ q2jak;of95eb ps3ucleon is

Correct Answer:    
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Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucuz0x.6j0b qyt)cn /sp leon

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements conceg0-al9ja7z b*vl/leqj4xf - rrning the nuclear force is false?

Correct Answer:    
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Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic fo ft edhy1g 7d.*r- 7nngsb4w1qrce, the nuclear force between adjacent protons in a nurghtgyd7d41f*b s e-wq.n1n 7 cleus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrat:.l8 ypb0v)pe mf)uize

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrc-n); .fts 0kkb(6xo r2i 5m)fqh ctxeate

Correct Answer:    
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Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetratef1lb sdaw 5 ncmwk2351

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also kpcq;d( eo5d l;nown as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also known a4; *xyot +yvbmnrp cwam6c u0f7) /(gns

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:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also know-+;q c o+rhbk pddwn/3e x:p-rn as

Correct Answer:    
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Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will bdtg 8.yij z)) e)+uryge attracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic mass equati(,n at:stva b/7 tof30 -wgml to

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted fro26xzcp tw v g;jp. x-1(1ovlnlm an unstable nucleus, the atomic mass number of the 2 vgvn.l jpp(wxl6 co-z;tx11 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 emitp .pfd5g .u+qwted from an unstable nucleus, the atomic number of the nucleuqw. gud5ppf+.s

Correct Answer:    
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Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - f4t(vbibu 58viprm 91Ma) 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:    
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 mosbv k.d ivx0wojv/s.7e5 g3gb7t 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 unstable8*irooc, as(d nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the most massw 3gup5yo vrt- v/ 1vdm8hnp*,?

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 adyz:u17fe4dme3o4g sc 7w owe 5dition to electric charge, energy, and m1s7wz7m oe woe:f3c4dug54ey omentum?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life of a radioactive su ted)-gczv63a.y x2eu bstance as it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 is often used. This nucleus emits a kc *qkag35izx 9;j)gb w+b:dwsingle beta particle when it zg w+*kd aixgc 3bb)9 5wjkq:;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 mncabw f8ft rcd:k76 77(6yqs lagnetic 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 tuc93 djmv gk:8hat 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 bazb3aioduxcjc(0ur q)40+ 66ru uk 3fubble chambers because

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomif wp iwl:)2hm1 )t5hvzc mass number of 14 and atomic number 6 has how many protons?hm2l:hwp)wf)z 5 1iv t

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 atomic63drlyl - g 8ri5sf-uix1n,lvd8+kon3 7cay r number 6 has how many neutrons 8clu- r6dk rlyyd 3frx+1n87g-3,nl5vioias?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number fomyf6 lllaiqm 2o 85 -lcc*tc91r calcium 39 are 20 and 39, respectively. How maqt*6c8 m95fl -2lalcloyicm 1ny 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 for calcium 39 are 20 and 39, respectively. H4g+8oj-l (rk z1 d sugxu(qo5t5q/ ybsow many electrons are in o ubjzqg58s/4dl +5rsu(1-tg qy(xo kone 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, respectively.jys oe.m5) b2.x : +vyzifc-ud How many protons fxms. :y)dze2 .u+vj-oi cby5 are in one atom?

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number 9q) v.4mbfh swfor calcium 39 are 20 and 39, respectively. How many ne9.bfvhw4 )qs mutrons 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, and electrons is ( *d7er:h3 mrueioe2ax)/t ,uqwmsy241

Correct Answer:    
Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are there in the carbo2fcisbk9o-fpp-1y6zzqw ) 2 en-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 kmsxks4+ga3by66jp wkf7d *ag5e76x number 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 energy of,v1 s: ujxv-+.x xjcnf $^4He$.

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Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remove onbn- dh.:alne : ugtoj3d.;hw- e 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 alphbnsj3 d a6dsva ,m44a*a decay. Its atomic number is ,6 ba4sndas4 jmadv*3now

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 proto+2 6rxgef/cc0ex p aj4ns and 249 nucleons. If it undergoes alpha decay, what are the numbf gcxpx j02/ a46+ecerer of 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 nitrog poml-kd1jryi; ; 7dnv+5 /mp;. id*snw8qtyten-14 nucleus by beta decay. How much energy (in MeV) is reoi5vjp8k7m wd d;dq mt1.;sipy-y /nl+ ;rnt*leased if carbon-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 number 6 u20rw,ncl s6s- 6xj;jo nbh (ixndergoes $b-$ 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 muow +95bmq bo:jx7sm.g ch will be left after 100 yearsbbj : 7os9+mom gx5w.q?

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?

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Mark Problem
64#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What is the probability that ansbskf,xx .r:. st br4z3, 0rs cl)vst, atom will decay this year if its half-life is 247 yearv3.0lssrrbc s4)r.x,x:z, ssb , ktfts?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was sd;v.e,lfys( certified 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. What fracti9,mas 7jprv69j ucvuhm- um0. on of the sample is left ,h m sc9 j0avmj p9u7mruvu-6.after 40 min?

Correct Answer:    
Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of rad+llfsl -a)9 eaioactive iodine-137 is 8.0 days. How many iodine nuclei are neces9 lesl-+fa)lasary to produce an activity of $1.0 \; \mu Ci$?

Correct Answer:    
Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substa:najx 6rj+ u-k 6 qt5fewr)on-nce with a half-life of 3.0 days has an initial activity of -j6 -qwoe: j5 kx r+urf6tna)n$0.24 \; Ci$. 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 ofzy0 9w7 ;w1qc jo.hdzf 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 we would estimate the age oc 9wj7wo0;yfhqz .dz1 f the artifact to be about

Correct Answer:    
Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it takvq p.y ol1;cn:+fii o1rk:8qce $4.0 \times 10^{20} \; atoms$ 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 q)jb qolc;02k yitfa1 cjp:93a $4.5 \; Ci$ 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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