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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 least.e ;ih)f;y+5 a+u ubnnh iw522xda yqe 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 is )xeq7 dz4r.dl

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consil/w5c/e(ugr xjyfh- /nlrz3 2 sts of

Correct Answer:    
Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is determined by i5bqoo s 3w/b9the number of

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is detevu2 z9k4ohkyy 1(vt(krmined by the number of

Correct Answer:    
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 neutromzt6vx8/* x zublk t9yrd)9 f2n number by N, which of the following is correz) xr28z txb 6f9*t9/kvymu dlct?

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 mass nu,t94 7rt0 bi qixypai7mber of the nuct7 i piba40,xtry7qi9leus

Correct Answer:    
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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an atom 8gyg75nznm+zh9s: m pis

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the size of ;+pzo xa1pi )(.rw8 dyt.wnbla stable 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 wityd7b)2z9jk5hhs x: ,fr r clfak -)rg9h different numbers of neutrons are referrh- 9)g,zrhas)ff r j5l9bc 72 kydrk:xed to as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element hav.jh:a o)1ahj e .ifs0ue nuclei with

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defined aseu0gch7*4 3buvl6o . pub gu;15wonxq

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses x vfdd2 :l9zad)x0h01n ifid: of its separate protons and neutrons, the total mass of a stable nucleus i :dxdl 1vzi9d0dxa)2f: n fhi0s always

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stpb9 6ua:nahg n 6+kg4 pbco9f2able nucleus, energy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus +fa)qun+uoj r 02ved( is contributed to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleon ,tr 5 x.vmodm-is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleo 8vrv9*qxvxgd2 a ox 9dal6z(2n

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerning the nuclear force is fals /tww2fpr4+yz e?

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, the zg9gr.m x is54 zxn:.n(wbvs:nuclear force between adjacent protons in z 9z.rb :n w s(isg4:gv5xn.xma nucleus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrateqpl;e x)f r-o5

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrc(kb: nqz s)3-x,xvvtate

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetratei 0ec0 + b g;4guhbcbgp3l1ej,

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also ,j+59try a(chh:q xfn known 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 km/5+o b mbn)2 8t0 wm)) mrkomcfhv/gqnown 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 known cp*34uvyrx f ehdm;26 hz)p/tas

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle willxgr10gi)ci , c be attracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an at ehm.-up( rkqd8-8mktomic 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 atomic md /hc /ifu(:dnass number of the nudn( fduhic //:cleus

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emittedp9 5.d2elj 1*tc xswtj from an unstable nucleus, the atomic number of *9pxdej jw2l5t.t1c s the nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 r8ktj ,* xv1::yo rvl, q.dwbwuepresents

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 s xnb .)wvl0om;2 kcaw)ame 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 n e zt33ysgae0mh- w;y:ucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the mosth2-6qn7eyt la2:ja *ltxhk9 (rxms. b mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioac7m cbzv *:ayzhf1n ,jrvl)tz zjl)9f- 8)n 9pctive decay, what value is conserved in addition to electric charge, energy, and momentu:7fvr*)b9 j)j 1zanp t -vf,) c9lznzm 8clzhym?

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 ,pvyr,ovz-q uzyn+1o zd (lu ; ,*7xxia 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 is often used. This nucleus emiti 84mknk5u9 dfl +4hoxs a single beta particle when it decays. When this hapu+h okm9if lkd854x 4npens, 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 chargednn )0anj4 b xzkr+ stb4t4z-w)on:(zv particles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector tha0z2buv5l ebjv a0( co5t 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 bubble chambers b+v de2sxe: w7qecause

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic masshf4zi v wws:jnn.:: u+y vxsk 43d8.nm.cap5k number of 14 and atomic number 6 has how many protons8x u y.cwd434n :w v:ks5m.hfk.n ivnz: aj+ps?

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomic nuam41w9rdx0qp/*) umm e sp7 yamber 6 has how many neutrons? xw mm/sqp)u1re m 740pd9aya*

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, respectiveyg4,ksi;*n- 1h3db rx imx2rzly. How many nucleons are in one atorxhr*md;ixzbgsi n 1,-3y 42k m?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for jc 3f+wd5a d+s ewnj-n2 jm.:ocalcium 39 are 20 and 39, respectively. How many electrons ase+25dnajf+ojwd 3m c- w:nj.re 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 are 20 and 39, respectivelvr o pbff4(l+ m8r9;yjy. How many protons are in one atom? o8j;(l +frpmr9 v4yfb

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numm9buma7 : 6p d6s/dlnfaq,b,mber for calcium 39 are 20 and 39, respectively. How many neutronp7l9f/ 6 ua 6dqbsm,danm m,:bs are in one atom?

Correct Answer:    
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Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, the number of protol-v6 j gw7bnc9ns, 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 carbon-14 n ly 1dol.j 1p6c tmx5kr56b2plucleus?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic numtfc; g r+-)m mau3q3gqx5ro v2ber 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 ener 8lv+asn)8lwp gy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remove one proton f 6qfc (9iwzc0qrom $^9Be$?

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 hf)*s7iqx pspc/-,x snumber is nx-xsi* fppc ),h/s7s qow

Correct Answer:    
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Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and 249 nucleons. If it unjdkzk6-s: 7-2n b)lindyq wb d- mv4w3w(r 6cadergoes alpha decay, what are the number nn-- w 3sb jd 7 24)wv-6kcrk6ldy:qzbda( wimof 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 nitrogen-14 nucleus 6alckzddp-db :ib0l 6 wp1 ;1jby beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.00324d1 kdblw1bpj;:ci-0dl 6 6azp 2 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 numbe3oc1v2i h1rhx.x-wlunh l+1 pr 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 mb4wu.i ilug6 1plv4u4 uch will be left after 100 yearlbiw gv u144lu.u6p4 is?

Correct Answer:    
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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 4dz7kbij zvb,x25eth v:s(9ban atom will decay this year if its half-life is 247 year 4vbi:ze(hkb dtvzsx,5j27b9 s?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was ceb1ps2ma ,ygs*rtified 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 mz4hi9b; ( mtplm46wx fin. What fraction of the sample is l4m 9x tl6w4izf;mhbp(eft 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 many iodine nuclei are al .l54no xbrx/(j-hw3ed,nz nrn.ll ( oxnxz,b- a/d35 jeh4wecessary 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 ,0z1crikd f(zs9 m .ikhas an initial activity of (kr1d0cki9 zzm.fsi, $0.24 \; Ci$. 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 a woodecr1t*a 0 :enoen casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amounn cea*ro0:e1tt 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 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 takevp- pql+ xtzc7d 90+hk $4.0 \times 10^{20} \; atoms$ 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 as u1)3sc yl96zb 8fr,trhryzzp( )ur1 $4.5 \; Ci$ 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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