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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 +vwwne n5htra;(8d/t 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 i( ivf*de8j/.s wdvx- 33fssdh s

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus xgd4w 0l+9i xxj s,o9m:c-wjxconsists of

Correct Answer:    
Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is determined by the number ofe m221ft 0nxlaj3z bx/ +yk5al

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is determined by the numberm-w3ypv+;)sg k3 r:xyw7r y jm of

Correct Answer:    
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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 its neutl2* ze3,zikg pl. mt3sron number,.z3* 3 metskzilg2p l by N, which of the following 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, thehe8qsa 9b/gx; atomic mass number of the nucaq/xeg8;h9 sb leus

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons info vbjgrlrxi,2m7-w7 ep; j* 0 an 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 stabls )o6 pp;dbot8e 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 refis h c:54antp8erred to stn:ha 8pci45 as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element haqz jz43i.e9r .xnihub3 f t1;uve nuclei with

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defined asx 9hy,lv3z8r f8jl zm:l5u ebn3(./cqc:kx ws

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separate prnuu7y6ah ;z2g4 uhm9l 0ryi*uotons and neutrons, the total mass of a stable nucleus is alway*rhh9;ml gu yi6n4 z7ua2y0uus

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nucleus, en;g p2eq+eew0 zmij /c)ergy 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 ic0:i-3 way/c32cdl6z b xiixls contributed to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucnzma32x ga:sy)z6zo2;kj ha4leon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy p :) ccs).nrnkq:)hp gher nucleon

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerning the n )uogey/uk adx62kc6b yt+t, 2uug30n uclear 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 adjacyv)3ulbwkb(7,y .nca ent protons in a ncy3)nu vy b,l7abk .w(ucleus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrtx1t+3kclu* bf(ngd )rcwa es gz4hr6i,( ) /yate

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetra 2zy)h8ovswt0 ozs9m 3te

Correct Answer:    
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Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetraw7a3r- * gp c/tf(utyrte

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also known/1u8a+bxpsvze 6 r;bd as

Correct Answer:    
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Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also known ax;ifp-v.t;n bl 3*loj51+x 5fjju gnbs

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 uk)mmjw)-ivpo6*) he7tgr-s2 chb- las

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will b5 nye /k:euhlh .4oo;ke attracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have twjui4bs)f2ath7th * y(6rg (an 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, the224sds:pnktx+m to4sbi /wq 0 atomic mass number of the nucle x+/wbtpq 4: 4i0nsdsmt 2ko2sus

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle yuy5m z:syag;fwc :n)6/v*hyis emitted from an unstable nucleus, the atomic number of the yg6* 5y:hyaz wym)nv /:uc ;fsnucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 reo5 f;(/+j.z gpwwv g qkcm/f)kpresents

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 most nearly the same a q;vlg;i2r(c2cfpu(bs 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 uns+ju 3 q*wwjr3;ga.rtenih -*etable nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the m pn4ga 7xxnc+t m09t(hdlr7w6ost mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive d h(fdp.rysl4 :0iqxv(ecay, what value is conserved in addition to electric charge, energy, and momentu.xqp(v( if:4s0 yh rldm?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life ofjg(rc .fe1 hy+ a radioactive substance as it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 io2y hx7 -(ghnms often used. This nucleus emits a single beta particle when it decays. When this happens, the resulting hg7y2 n-omh(x 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 ffce: sa-b+tp3rzu r) 4ield 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 that uses liqui *os8fm +9k,br3szc2v b,zrqdd hydrogen is a

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced by bubble cl pv-s8 wagp xm7c27dc qu(u0-hambers because

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mas/.l e+xc2dmez8s6 tsus number of 14 and atomic number 6 has how many protons?8et lx2c/.edzsm+ us6

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass numbus;wzlchc4: :pmvc45c i4apj/, ; oyler of 14 and atomic number 6 has how many neutron;jvpipcmls ;h4o4cc/w z :u ayc:54l,s?

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, respectively. H 3xpq f3 8d5cb2bhzf8hoh85f83bxb qc zp fdh32w many 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 calcqdoljky9 euafn),6 +ar7q4 b 4ium 39 are 20 and 39, respectively. How many electro u d qlq 9o7f+4e)46ayrnajb,kns 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 calkr m(smwf)zl+* /n gu(cium 39 are 20 and 39, respectively. How many protons are )/(fl+r nmmu*wg sz(kin 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 and8i0 yqlr0it2i.u35tgvt/6o a-ujpds 39, respectively. How many neutrons are in one a v l y3i00u8 ostup2ditq.5a i-gtrj6/tom?

Correct Answer:    
Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, the number of protons, neut e7zabclj x4//1ks7ejrons, 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 carbon-14 nucleu1 a)a83f saya+eqqxyvs-qa +vv5w )7m s?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic p9; +dg rhack) xzi.+xnumber 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 energypt:pbdexx/go8u3 f s* d*+mj1 of $^4He$.

Correct Answer:    
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Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remove one proton et zoow180 1oqfrom $^9Be$?

Correct Answer:    
Mark Problem
58#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 88 goes through alpha dec ed3l:+s;fq f7m4v lc3 2qpftbay. Its atomic number is noq3lvf3;m dpcefsf7 t 2q+4 :blw

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 g mfn*zi34yj;xi-4a2uu3 t rgundergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucleui3;mujt 3r f4 i24ng-*aguz yxs?

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 by bzn,l)zyp ;6zaqp12e pw8c3 uo eta decay. How much energy (in MeV) is released if carbon-14ucaen w z6p8o; 2yqzlzp1) 3p, 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 under;i p aunjk-.- 1itzyy,goes $b-$ 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*.urlh*pu b: h is 45 years, how much will be left after 100 yearh :huu*rpb. *ls?

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 wi c9 aymz6cgw8u8, ci*fll decay this year if its half-life is 247 years?,cu w9g6c 8i zmfcy*8a

Correct Answer:    
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Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was (- v gpfyo0z1dcertified 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 ahjz si1z7ky m9*6+uce half-life of 10 min. What fraction of the sample is left aftk9sm*cz u67+i1 jhzyeer 40 min?

Correct Answer:    
Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of radioactive iodine-13vt .2-q6nsd rt+h 21suvjx0so7 is 8.0 days. How many iodine nuclei are necess0d6 -ht2.x2s+nv1q ujrovsstary 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 substance with a half-life of 3.0 days has an initial activev+ dh7 oq2i1mnm3hz2 4bov-lity of 3v+hnom7o2lvie2hd- m b4q1 z$0.24 \; Ci$. 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 duea/prl ry ,6kvlxyg )2: to 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 carboprlxg ky2a /l:),yr6vn 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 tak e:sooc2(0 qgvz8koduxzb: .6 e $4.0 \times 10^{20} \; atoms$ 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 take62phahanc h)gpo+r*-0wrf z5 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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