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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 massx84 oi ep,e;tk?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom isk wx1mskq8k-9jvj2j4

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus consists o 46c2gn7u6zps feli0ymk4 wo3knm; e8f

Correct Answer:    
Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is determined a+2n i hwa6d py16.fhxwdr-1qby 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 nkljmtfio,q8qzb y ) m08eo .d81 *d7uwumber 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 u:gqs:md vp4 :v es5hi8( k7iagiven by Z, its atomic mass by A, and its neutron numbqdg8 7: ai k4m5v:hu: s(spvieer by N, which of the following is correct?

Correct Answer:    
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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, )zxbqnj),l b 6the atomic mass number of the nujn,b)xbqz 6 l)cleus

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an atom ikab0sfcds4+ 1 s

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the size of a stablehg)1k ck1tb1 w .fto,i 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 numbers hg-p,*ejyq :+ ktns (bof neutrons are refe:jb(e+-,npshy * kqt grred to as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nu, 6m8+asgz3hpl .o fpeclei with

Correct Answer:    
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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is d1ai50 sn ws(vv( 2ogk 21jhzyuefined as

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separate protoo)bku * x-j- nuslk7f5ns and neutrons, the total mass of a stable-fs -k 5n)xlok7 juub* 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 nucleus, e)n4o8 royvx( dxu-4mg nergy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of fw 5 ep+dth: .(rvvl1ha nucleus is contributed to

Correct Answer:    
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Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nsowe ;vjn+ .qxjy 3n)abc; +,m;xjmr6ucleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nu 5dln9jj .lf(lcleon

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements cm fu5kw;mh c90oncerning the nuclear force is false?

Correct Answer:    
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Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, the nuclear forc n-ay0bgg1k aafp u-1 i 2w0(lxzn:v+d+*iyaxe between adjacent protons in a nucleus ix12a0bni + w gv(u pynx iyd:+fz-laaa gk1*-0s

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrawlzc+)-wvu)g2fqzfx ) tsh;f6z9/dkte

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrf hzow-7msib9 t .-m:oate

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetratets 9u72nj, 8g;hr .g)fytxgse

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also known iqa qi rl9oe20cxq5.) as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also knlnh(1h ylc 4:eown 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 ask sc c9.7m9x1m3znapdqx nxppz73 7(z

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will aqwx (a81lsn -be attracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atrt*9v2 ugf 27d(ng amyomic 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 anm96d: z5k(f riaml1m yuhtyow1so78 6 unstable nucleus, the atomic mass number of the nuao m6yw1z96 idtu8y(h :75lo1krmsm fcleus

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted fropf+wz9 x* hs(phc)a;5zbe3pz m an unstable nucleus, the atomic number of h e 3 f zch+*zz5p(w9basp;)xpthe nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 represents/)z i:mzkg y /xht:jdk*o3ixi:d 8e0m

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:    
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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 as a,vjk;1pnyk )hr 6;lnv 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 unsta ara8 kvr)bs*agi6rq lp z.e9389*yvf ble nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the most mako0s6 d q g6rsipjc5f,,aiz:1l9+znd ss?

Correct Answer:    
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Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decay, what value is conseob 9j4 afhoo(7rved in addition to electric charge, enb oj7 h9(ofa4oergy, 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 substance as it decays6q 5d m8koj3bn?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 is often used. This nuclepohsqs6jmn*bmrsl). :p9* gp:k+ ( glus emits a single beta particle when it decays. When this happens, t l9p:lsgh*6p(s s). +*nbp omjkg:qrmhe resulting 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 dg n7 uq0*0m2vx7,y8vxi2 ,ppxdknfmparticles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that usgq2w 66sfpf5hes liquid hydrogen is a

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been repllums+1 4: fxqx.e3p.i tjbe1sz5i ,bmaced by bubble 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 e- gbdtw*0 wtywx)*-l how many protons?t-d-wew)*x lty g*0bw

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 number d5mnjii 38v8 q6 has how many neutron nvd83ii5m j8qs?

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. Hfd39;) meusp1 xwf 5pjyf+3ma ow many n9mfpa jm+yx 1)3w;dfp e5f s3uucleons 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 calcium 39 are 20 and 3 m)ne4;:(*x c wdt4qvgtn2 lqv9, respectively. How many electrlc2x qet : wm;n (4g)vq*4tdvnons 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 aredmo, c3ej.v m9z/ll ;t 20 and 39, respectively. How many protons are e9o, tm/j.dlv3; mlzcin one atom?

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numbe6)jmr+ji/k s er for calcium 39 are 20 and 39, respectively. How many neutrons are in /6i+j) esjkmrone 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 electronsp6:,vc n-ojdnqqq k+okl cs;(y, (as 88iu(ih 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-n 5qup7h+xw2tidl ljwos gkvk/.54 ;,14 nucleus?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic number 15 haoie;s4t6p: fjs an isotope of mass number 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding e z5lgpeklp2yeb ,5 2:vvhc-w7 nergy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is requx6kxj-bac5k0as fbq lga y,v.;d8 n: 4ired 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. yha(u) nl16xpzw:- vpcs0 m/ hIts atomic number is n6hap1v0n (hxlz y: -)csmup/wow

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 undergoes)-ly5rk6e d52 * cxsvbhzv7 lc alpha decay, what are the number of protons and neutrons, respectively, in the daughter nuclek x7c52sdzblvl6v ceyhr* 5-) us?

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 bym1sar , uqfy)9 beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u anr)q y1m su,f9ad nitrogen-14 has a mass of 14.003074 u?

Correct Answer:    
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Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomicw/szi6 ,bpo+f 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 much will be lefy-y;p/tb9aw0 g3bwgg0p,nfot after 100 years?af;w ow 0y,gb9/yb03g-npgpt

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 probability7t3i)q(whow i that an atom will decay this year if its half-life is 247 yiwt(3hqoi7w) ears?

Correct Answer:    
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Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certovf2+hk.zcn (ified 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-lif *o wzca+c0:8rnv9 tuwe of 10 min. What fraction of the sample is left after 40 min?v n8 c ctawwru*90:+zo

Correct Answer:    
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Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of radioactive iodine-137 is 8.0 d- 5.wx9gmlae6 4:r, /s osrkn(oxvvmlays. How many iodine nuclei are necessary to produce an aex- .wsvmom kso r:, a64r5 v/g9(lxlnctivity 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 a 24kybp/ a4iuv2d*pnm n initial activity of *d/m2avp4y bpi2k n4 u$0.24 \; Ci$. 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 tonooefl96.1hh7**j-az t hugo 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 g h-o.a*1 7tofegznl*9hj6o h uiven 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. 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 tae2fua)ufjr7hb z w b-qw k546/ke $4.0 \times 10^{20} \; atoms$ 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 awfn j9;w/u48)jham ocuye* z e8okj 3. $4.5 \; Ci$ 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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