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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 par kentac-fb q1 n2-wp-cbz,0,z ticles has the least mass?

Correct Answer:    
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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom isbt6zc f0rt/ ljiw/d1m:b;ts 1uis 9 t9

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus conzgfek one9kj7l4 h+(9 sists of

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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+u+id64pk ;vje8ix ,w2m fnfk 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 number oe* gd9qlk(8 8z,9nvm 8mcgudkf

Correct Answer:    
Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an atom's atomic numbe uw ;ix.mw:qm7w kk0)tr is given by Z, its atomic mass by A, and its neutron number by N, which of the follow.wuk ;wx7w 0mkmt):qiing 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, t05jezw8.m 7aqs:,ekly s n)nche atomic mass number of the nucleuj5s 8a7 ,lce n.: kqsznye)m0ws

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an aquzt ck0xk072 tom 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 because ofw m ay zhk5,5y9,6g d+e: tb5uoguwv)x

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic numbern oerc*:x2fnj5g 55hc but with different numbers of neutrons are referred5f5nc x: j*5n2h ogerc to as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nuclei wi9 ep3w(a+1t+tam zh bsth

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is definevum*oe si.*t* :dg(l yg6ppchyta +);d 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 neutrons, the t h6 ;h/gys(d 2ybte2stma+ mw7otal mass of a stabtd7 h(+ma2tm 6;/ ygyw2bshse le nucleus is always

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nunpsd2 7)p8i sucleus, energy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is c7sqw pcql(y4+ontributed to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per1wz)mhmjh zpp7jv+1ugqd7 80u zo: 2 s nucleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per n+ux 4hmfy,l*tct9q k3ucleon

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statementu;s m(roi+,yts 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 bet(a /fny+5grypween adjacent protons in a n/ +y5apgryf (nucleus is

Correct Answer:    
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Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetratbea,jy,uj1l0 oo+b pki7;mq +e

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrat i ;bc4:hiyv4te

Correct Answer:    
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Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetjx)w9 lscuz)lt 4cn/:rate

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also knowux 9nmh)-g)dpid. j /vn as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is als nxpzsx2bdo,/ +ne/(yo 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:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also f;x (w)dg tc.mknown as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle wit+tzas61po( b03ufb g ll be attracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have i lmgj5qe d0)5g2a5aian atomic mass 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, the at 27b.v1 e/haoi zvg+apomic mass number of the nucega7ph +.biaov2 z/1 vleus

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted fromqcf yn7 mz(fpt3qb nsh7);++n an unstable nucleus, the atomic number of t s(7 n qznm fqc7nb;ph+yf+)t3he nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 rpt 4u* z 3 lwtdo:.qanr;nb;h*epresents

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:    
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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 a gamy+qba)pi 8 2re+ozag; u;9 lsm kxd8,yma ray?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emitted from an unst6ga--vh;lmunr0t , f yllck a g+73uy+able nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the mo;ti(wc e4pw;b st mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decbyot,3ryhhsw)l77 500vg yo qay, what value is conserved in addition to electric yt7rly,v0goh7sh0 b w)3 qy5ocharge, 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 subst+2+ swr2hu,)m0 gjdf n4iphrdance as it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbonp*c 6qbrqwl,t +b(pm 1a g5. rh5d)sak-14 is often used. This nucleus emits a single beta particle when it decays. When this happens, the resultinlr5cs*,) pbag wpq r5 1mt+b .h(dka6qg 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 curve charged pax/7pm-ir bn+dnv j 4+mrticles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses liquid hyrf m-jdr-msl:,, vvj f79av px :rp;q0drogen 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 beaip07 ev4;,eg(v1zwbbc,f a mcause

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 pp/*v g xbfb:dka :szm5q4ao) 2rotonsb):obq amxfkgds:ap4 /z25 v*?

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 atomic number 6 has how many neudh,q;u0s t 7+)tb vvqpg(ku2vtrosvtpu bt2q7 v)g ;,d(qh 0kv+uns?

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 2wrl (a0g bq1qsd k:5-;lwamh/0 and 39, respectively. How mld/h 10aqg lmwrw(qkb:s-; 5 aany nucleons are in 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 numbeep*r4azb * js+,mkjxv* m6 gt4 4i0upjr for calcium 39 are 20 and 39, respectively. How many electrons are in*i*ms4e+ujpx64mz0kj g* j4a, brtv p 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 2i.eo q wkd3yqjtod zo 4x4v.; n-m1*b50 and 39, respectively. How many protons armv.;1*o3d i.yq tnkozwjxe-bo 5q4d4e 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 eli0g.uvczwudl q8) 0j3sl98. How ug isv 9lwl8u 0q ledc03j.8)zmany 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, neutron 84p0rwyjz ( okw:e6 omkxw9x7s, 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 cfjt+a jf7 i05narbon-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 mass numbeabprea va;esok75q9 ;ut8k*0el7 42 l kivr; er 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding energy of ipbhyw 1sm r 819v+j+;,yn xou$^4He$.

Correct Answer:    
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Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is requs++cf7j .l6-lztf pk7+dwoh sired to remove one proton from $^9Be$?

Correct Answer:    
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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 number isn0wv zkfg8 -3 /:w7:1zeocclzhd wa5o lo /:v7kzc-01oweza3c8:wzd h gwn5f now

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and 249 nucleons. )yq sg6uh7;vj If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in thvsuj yh g;)q67e daughter 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 byzht q8ud10m kn* yn c0/m;yp.l beta decay. How much energy (in MeV) is released if carbon-14 hh8 l0mytknup1./q nyd0zc;m* as 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 und+fei hrn w6lk2:h -we4ergoes $b-$ 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 osb5krj8b fp+a+6ot igb2:9aa material is 45 years, how much will be left after 100 yearpsb5 ogir+9b8 a6bt kofa 2j+:s?

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 thfgnl96c y8c04 c)a oqkis year if its half-life is 247 years8f)6cgn0yol4k c9cqa ?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certifst8wv*)k4u1ip6y5xgj7 e nx uied 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 10 mi)*jcuhkx, gzr 5e. pu:n. What fraction of the sample is h rp,jg x.)*u: eu5czkleft 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 mpqr64 ;q2uo ssany iodine nuclei are necessary to produce an activu2q 6rps4;soq ity of $1.0 \; \mu Ci$?

Correct Answer:    
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Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substanc ,tons/si(o/ lcbcmb)+dxw 27e with a half-life of 3.0 days has an initial activity of os cb dn+bs/ wlx2o(m)/t7,ic$0.24 \; Ci$. What is its activity after 6.0 days?

Correct Answer:    
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Mark Problem
69#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The radioactivity due to carbon-14 measured in a piece of pjnlv+qo17er nzn+gb q9:zp c 3-r-i,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-lifez+i3jlgp7b9 z q-n-epn r+orn 1qvc :, 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 take 6kknj.temj8k 1z(9 wu $4.0 \times 10^{20} \; atoms$ 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 a 0u9)nd y 8lb+ tkx3a bws;1adn$4.5 \; Ci$ 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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