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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 lrj .k, pecf:wyg/l2n-east mass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom i7l3ccm*1q-tj, en pkqehy/t(s

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consists *yg/dzl.m rjjcun.2 s9 sh*dqgn-z1+of

Correct Answer:    
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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 ss7ersaw7)j 2no6 x(xof

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is determined by tmqd*e9.do; q2dq fwu jq;y4 b)he 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, wmgcy+1 a f nc/0wh-i5and its neutron number by N, which of the following is cmyn -/ g fi0haw5cw+1correct?

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emittedd(2kwj xk ;m5h from an unstable nucleus, the atomic mass number of the nucxwkh; j(2kd5 mleus

Correct Answer:    
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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in anntsoe1k8qjb 2 09q0pv 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 stacvq i1zc :h0zm*s*6ezeyuc / ;ble 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 with different numbers of neutrons are r6z:djopam8 h ,eferd6p oj, m:ah8zred to as

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 c .,5m.zuy ,1pt nee7nl;q mqhwith

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defined atkxs;9dnq(zia ap0k.vdm2 6+s

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separate protons and neutrons, the+uk11 f , hkr.hr*qzdd total mass of a stable nu +rdhzk.hfqk , *11drucleus 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, en- u; nf fjfaidz8y;a*6ergy 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 contributed l;vr/yixbk l -.blf,2to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nus1e7pt+rb hdx:tha6. cleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per n 3; nawcpsx-u4.cazt y :-ketph91zn-ucleon

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statemenw +n d(r5u re)h:ucq2ots concerning 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 77vrm,kkk9v d-u (ubxbetween adjacent protons in a nucleus ism( 7kxv7k, -u9 duvrkb

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrateihk8p 4,y qve*

Correct Answer:    
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Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetratha*,pjdk x2+m h 6-gxze

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can peneth,lxwz+ p0j(/(hxjy srate

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also knownh3hqqh+x1 y* 6s v*osg as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also knoov,n q8qlt; q4wn 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:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also known1obu(5 zkkb7,u( ygl x as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attractedfgy( bonglb;um, 5b (gb8ud54 to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic 3lt *q2n/x( vmnm+ bkvmass 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 unstable nucleus,o 0)ct( sf:by5yyiq2k the atomic mass number of ty y0qtcok5fi):2 yb( she nucleus

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle siybms76 ;1i yis emitted from an unstable nucleus, the atomic number of t7s6 1iyb;isymhe nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - d1:j3 f7szobh 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:    
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 the same as ubw(q(u 3uc(,id 5jmk jbpg+6 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 unstabl nwkkrc(i970le nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the cbh 8rg5l6rt.az87v qf 1x -oimost mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive da90by4k b e :joa2zkd3ecay, what value is conserved in addition to electric chargeb9d:4e2k j0ak3yzo b a, energy, 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 substkkk o)1xcio 9uog9lv;o);,wd( t vt,fance as it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-1fwd h*q; c qj288w-dns4 is often used. This nucleus emits a single beta particle when it decays. When this happens, the result8dsfq*c -ww 82d;jqhning 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 charged particles isc s/ dg*2 q5i1j)il mursv-3 dpaskc2. a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses liquid hydrogen isc mb+o8bhp.9e )vbo(n a

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced by bubblx- at/ho( pg2de 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 ma+ 6gjbadc9 3mom-w j l.d7.zdbny protonso zw ajm.dl6 7g.+93 djdcbb-m?

Correct Answer:    
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Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomiot+kdm1 j+86t+xawtab(p ,ggc mass number of 14 and atomic number 6 has how many neutrons,j1dg t+mtakgaw8 b x(+t+op6?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium +42fjj b f uka0tkslfx:r/:m +gsrl /(39 are 20 and 39, respectively. How many nucleons are l4g/akmj:jrusblt 0+2+ (:x fsfr/fkin one atom?

Correct Answer:    
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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.1hq oty 2n8l2f How many elh 8flo221yntq ectrons 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 arspa 9r.ae:(hgp0a 5ik +yip0 xe 20 and 39, respectively. How manye0ay9r 0pp( +.pa :5gisxakhi protons 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 for calci k . vpk8/7mm1klbbd2/r4scycum 39 are 20 and 39, respectively. How many neutrons are in one /c21k4 krpvb.msm8ky7dl c/ batom?

Correct Answer:    
Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, s//f52fd+bq:su7gd, 6+p imbmatfnlthe 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 carb42;tzj89qy 7/h*oqrr+ y3cxc rq odzpon-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 isrjaec uu21b;e+( www+itx3t *otope of mass number 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the bindint d/r tp* y qfhm0* ,n-kd1plhu0dg,.xg energy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is requirek8*t.en+:1( ur;jrw mwxgu dngvi .v3d 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 through alpha decay. Its atomic numberv 1w+ibk,6; kd0 hjvvi3,hke t is e1k+i,j,hd3;i hb kv0vw6kt vnow

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and 249 nucleons. If:5oth g0: l z +,ergyt-kp 6nwpq-yasmx5-s,i it undergoes alpha decay, what are the number of proto y :p :w-se txq-ag5,ig h+ktro5y0-,6lp nmzsns 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 oi 2xtvdf+o k3.e p+*bnitrogen-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 po*x3++dt .evio fkb2has a mass of 14.003074 u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomicu*)mgx +kx(p z number 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 45 years, how mucyni (4g)pc 6djh will be left after 100 yearsgyjp dcn ()i46?

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 rcj3 /k .vy 7 gg:o4mrsdg0*ezdecay this year if its half-life is 247 y3 4sjk /rggvy0c7:gm*odrez .ears?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certiwgv .v) jd: +f. )sedxk,ifej7fied 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 1r1 op n:t,(yvjpp5a5v 0 min. What fraction of the sample is left aftej: yopa v rvp,n551p(tr 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 8x5;o /ic; rtwdc d4o6l.0 days. How many iodine nuclei are necessary to produce an a;o icxdd5/t wl c6;4orctivity of $1.0 \; \mu Ci$?

Correct Answer:    
Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substanc56a+2ui q y(l(mewmoffahu :u nez4)-e with a half-life of 3.0 days has an initial activity of (y )qli6nw:4-2+u a uf o m(mf5uzheea$0.24 \; Ci$. 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 ofmsu 8n.,f (i9aa)s1+ wrp ggtj 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 carbonguran 8+,m9w .f1ssap j)t(gi-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 tamt 4qwbw;za7 s :wv+r9lr3pqor a),)qke $4.0 \times 10^{20} \; atoms$ 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 aec.wc + 8.8xm lfzt6,lmm2ia r $4.5 \; Ci$ 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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