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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 particles0tk8uzi6mib0i ur 5w7dm;:gj has the least mass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom is;w kc6z. crml2

Correct Answer:    
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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus const z 99guqih(,gists 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 ty 0;jqr 4ag0,qvnhepxa;7w-ghe number of

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Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is -5)8u tidhw-j k9s ffkdetermined 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, it pr3qi47tcvx (s atomic mass by A, and its neutron number by N, whic3p rc47ivtq x(h of the following is correct?

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Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an unstable nucleus,y(tid/v2-m6mly*g qu the atomic mass number of the nucle giu dm/yvm* yl62tq-(us

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protonm+dc jqou6n:,s in an atom 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 che xw.my2:ogo:48vy a stable nucleus because of

Correct Answer:    
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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic number but with different n*p aw8h:y j1clumbers of neutrons are referred to ahyw 1p j*:8acls

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Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nucyd; jb79m ,kgwlei with

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defined as;v/dd )sex jgcoi65*ogo h6 m3

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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 m ;x(jv /jtgf(+g1y u;fxif.u+hfp(slass of a stable nuypx+;(gfifu fh1 (/ x.s; lj+fut gvj(cleus is always

Correct Answer:    
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Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to bp+b o :zi*3vjform a stable nucleus, energy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a xgv), pid9axc3f:2d09npz w snucleus is contributed to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy pad*82 nh8gxiser nucleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per njpgk 6b7m mv2y23oyn (ucleon

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statemenflf d 86+cf3hjts concerning the nuclear force is false?

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electros((ol vac*flh0tatic force, the nuclear force between adjacent protons in a nucleus la (vho*0lcf( is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrattl2ks j0*ec) u 18zyjs. /e9z5wxmduae

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrateebmlqm,p*/ cbcb..* y

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Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetratas o8-yxw1t4ze

Correct Answer:    
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Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also known8ol 8o7b3(h au 4lvcmo as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also known a ky9kzw9 x,zw9 m58djoh.j4ljs

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 kn0u gpi.sj;g l.own as

Correct Answer:    
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Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attracted to b 9vd6bd lxu ;fd8ov,10s hk-ta

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an ator06upkt 8g-c5y qclrv/ /i)cq(m +wbamic mass equal to

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted frf7 e /wo6ux3mbl*tz;wom an unstable nucleus, the atomic mass number of the nucleus; x*7bww 6 ze3tlm/ufo

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 atomic number hh+oh1q5 xp/p kqp 2091s.uvndc rka-ofk20dqs9 khh-.uqh /a 1o xrp5p n+p1vc the nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY sj3zwm-nu dx d uh1o et,ln8e3y))s/; - 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:    
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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:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following is mj/*clztbnu;d dy vq9ov7)/r5 ost 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 unstable 5h i6/oj po 1n1mfplq+nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the qap1s58)-elym yp:tz/ ygk x: 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 cons79z0zndwfn/ 9u+4 yak6pmca eerved in addition to electric charge, e0 9dnfze/w zc nyaa79u4 p6+kmnergy, 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 ramx u9g rf4. esrn 00ean3ihb.9dioactive substance 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 single bip2r du( a(t.beta particle when it decays. When this happe biapu2 d(rt(.ns, the resulting 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 particles ju+f u(r.z*pn is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses f3uol i c ;uzo38g:p0nliquid hydrogen is a

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have be7 :ea-zzcq fa sm/j35ben replaced by bubble chambers because

Correct Answer:    
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Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic massobng 16m g45es number of 14 and atomic number 6 has how many protonseg1b o msn54g6?

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic 3eojo)qw ,00anggy)k mass number of 14 and atomic number 6 has how many neutronse),j anq0)okggwo y03?

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium8s,ertoqqp /* i9j +zk 39 are 20 and 39, respectively. How many nucleons are in o+ qzeo8r*,pi 9tjkqs /ne 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 asxcu r:oc4n6p+d.g0.y pno *cnd 39, respectively. How many electc40. p :xc*ucgn+rn.oypo6 dsrons are in one atom?

Correct Answer:    
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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. Hkbqjpo1-3bvv(;aeyn,6 n nzu q if46)ow many protoqkq 6-y3p4ufe6 jv)( ,invno bb1;nzans 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 calcium 39 are 2xmg k bso8 6h;y6h.p3q0 and 39, respectively. How many neutronmoy8.;3 sx6q bg pkh6hs 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 electronsoxmjvns(.ivb5* zasr28o e+v(l4xv1 is 41

Correct Answer:    
Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are there in the cbf jg(,n ,ittr/c8l0harbon-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 number 15 has an isotope of mass nabjonf)av 01y- z +m1yumber 32,

Correct Answer:    
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Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding*/j r l-*txm1o-v(ip0vfen ob energy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is requf85l;bzm cyqred /.(a89cd2/nxxsq pired to remove one proton from $^9Be$?

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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 deu o(uor,xzi7 1cay. Its atomic number is no 17uor(ou,z ixw

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and 249 nucleons. If iv3.s ss5sf.yct undergoes alpha decay, what are the number of protssfs .v5sc.y3ons 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 nitrogen-14 nucleus by beta decay. How d;miafteo0 *9iz 4w vs+f:9lf much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.mo+;f4 i99fa*t0d :el wzfsiv003074 u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number*da ;ay.c ngv, 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 49g4y9dg*wvht. imc wcmq kwbx+0s1625 years, how much will be left after 100 year9cw4k t6 gi9c.m2g +*0 qbywhsxwd1mv 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 this year if its hat jz;:daxjx b 61of47ulf-life is 2471zftu ajox:6 4xdbj7 ; years?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certifi0g qi8srw4py7cm8tg,u)zvlo0xd-*bed 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 min. What fraction of mp wu5 f7b5;o)mih7 oithe sample is left aftefp75h5; w imobmo 7i)ur 40 min?

Correct Answer:    
Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of radioactive iodine-137 :z:fb/7qnse 5; temylis 8.0 days. How many iodine nuclei are n/zn5s;eq e:7fbm l :tyecessary 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 activity of udh wr,i,d:tn/ bgvk )1*vkv ;ibwr,v )vdh,gk d1:n*uvt; /k$0.24 \; Ci$. 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-1 8g2(lqb28wu/d 6ti 3rbf qbdzr99 bie4 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 carbon from a piece of living wood produced 160 counts per minute. The half-life of carbon-14, a beta emitter, is 5730 years.i/8e62d3z2lbq(bt r 8dbwr9u bfq9ig 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 takem*pkyrp 2-sfe.o r5 -q $4.0 \times 10^{20} \; atoms$ 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 takrb gu6+4ts6xdvmz9x ,e 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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    Total:71 mks Pass:42.6 mks Duration:Unlimited
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