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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: physics   总分: 71分  得分: _____________

答题人: 游客未登录  开始时间: 23年05月01日 14:22  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the atomic particles has tbi);ihr+at2 f he least mass?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of an atom isuhe 56z8i8 kgp

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus oe90t 8 r qd3ctpkk /mu/:7efyconsists of

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's atomic number is determined by the * fzzdf -d6pt70k 63obwx pf12lsh5xz number of

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's mass number is determined by the number o, y zsl 7xjbasb5m*- 3jba5l:7mplp:ef

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an atom's atomic number is given by Z, its atomic mass by A, and i 0dt32crhanw 0ts neutron number by N, which of the follon 0r3wth20acdwing is correct?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a neutron is emitte f 6idg4w.hdwodyx/** d from an unstable nucleus, the atomic mass number of the /ofd wwg*x ih4* .6ddynucleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protons in an aton*l3 e(1chzb9lo do *,4oak/8zt tznrm is

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  There is a limit to the size of a stabl:4m8tgmd anb6 e nucleus because of

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Atoms with the same ato9ix - ugj*btnky 7+um,mic number but with different numbers of neutrons are referredjui9 ytxm-+ 7,ng*buk to as

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an element have5 6iqmx1kxb72dyt9wt nuclei with

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unit is de /06;foyinrryq5d gm9fined as

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the masses of its separate protons and neutrons, theqi j1q1 : ia4g(fny2zm total mass of a stable nucleim1jgzyi q4 2qa( :1fnus is always

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When nucleons join to *(g p/ -91l4shq fz8cvtjgoiqrhs*+pform a stable nucleus, energy is

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy of a nucleus is contributed to +.pl uf5ykjw(2zdb8 gn7f l*h

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nucl jhr n)p0if:g.ub36e)pyf gs s wq6(b nr;39vpeon is

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nucleotgyp eu e;5 :c.t/vxh8n

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following statements concersbjj :ql*yb p9(g1 wb7ning the nuclear force is false?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostatic f)dzp 6bw g4)gzorce, the nuclear force between adjacent protons in a nucleus iszd b)wzg p)4g6

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetralf8+gs mt/3hl te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrauoc7,g((z6*uq1sr xkkb l9z cte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra3j x/ .- kuq:bs+no j;3temqaote

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An a particle is also knowqb5+ re 2igtrk 0u.glrj(9i;t n as

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b-$ particle is also known as

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b+$ particle is also known as

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gamma ray is also knowwp a*fo0ul su4ybx )87n as

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle willxb/:moi d n5h. be attracted to a

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha particles have an atomic mass equal -*8onygz8+mmu jq* 9q6 cnhdnto

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is ez2)zsb ed9t3if/3zpn 3b l9fzmitted from an unstable nucleus, the atomic mass number of the nucl/stzibe3zdz93 f9) nzp f3l b2eus

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is emitted from an unstable nucleus, the atomic number ofu m-m hteyg c-0s(ac 6d)ky-z9y-m s)ehu cd6tmzy k(c-ga90- the nucleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - MY - Ma) x 931.5 repx 1 5amucd/ rr4nc0g3presents

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In beta decay

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b+$ decay

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b-$ decay

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is most nearly the same as a gamma rayc r2i2 yxne,*u?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a gamma ray is em f1hi2zlx-mmu,m -nx 9itted from an unstable nucleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has the most mas8/ m..uw -o bwsfg+mdgs?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In all three types of radioac 9u5dky vx(igst;(d l(tive decay, what value is conserved in addition to electric u (vs;9k(ld x(t yi5dgcharge, energy, and momentum?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the half-life of a radioactive substance as it dechv 68ikx sov6gkwg.6 x c)2m c7ytth0+ays?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In radioactive dating, carbon-14 is often used. This nucva 6za iod9o11v gle8- gw06lhleus emits a single beta particle when it decays. When this happens,lho1v0 gd9z aa 68wg6o vil1-e the resulting nucleus is

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that uses a mag gtc 9h(t1fi1bnetic field to curve charged particles is a

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that uses liqui3fcc7 xe9;bdqnvl/*l d hydrogen is a

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Cloud chambers have been replaced by bubble chambers becausau348w2heou o y pf;/mr ,q;fse

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic mass number of 14 and atomic number 6 has h4b v7czdg:pa 5 0n6nduow many protons? 4bnp:6zvngd5u0 acd7

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic mass numy:78esbm/pfjr , ) zwix36rjr ber of 14 and atomic number 6 has how many neutrons6yp fim7:se br/,) rxz3j w8rj?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass numbes yep7pzpx1h( (r8sr7 r for calcium 39 are 20 and 39, respectively. How x r7(pp yp8rhs sz17(emany nucleons are in one atom?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass numberbb 82 j5y8xvrj for calcium 39 are 20 and 39, respectively. How many electrons are in on vj8y xb28rj5be atom?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass g: pssi,8m(e.d 6 e rccss:c1vnumber for calcium 39 are 20 and 39, respectively. How many protons:c s1,eec sgr:mp.6ivdc8 ss( are in one atom?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number an j;g*iuvd0 o/x3dcx(nd mass number for calcium 39 are 20 and 39, respectively. How many neutrons are in ong x(c /03dixd*;nvju oe atom?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a 93 Nb nucleus, the number o c+ a. 6aez je1pt+ims(n2unl.f protons, neutrons, and electrons is 41

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many protons are there in the caruy,:l ( kx(qptbon-14 nucleus?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an element of atomic number 15 has an isotope of m q xp tlhihia5h,6;6je14r 7ynass number 32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding y57 unr20b5/3)m5c fpvkujuho4ob ffmn4ki: energy of $^4He$.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is required to remove /j (hlnynw,d y(ksn*s( /ke5vone proton from $^9Be$?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 88 goe/fr,iu0 faac fnn 7yo3p x2;7ps through alpha decay. Its atomic number is n27aaoy/fip 7p0ucf,n3x;f n row

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom has 98 protons and 249 nucleons. If it undergoes alpha decay, w ffz7rx(s gs48aupj)3 hat are the numbfp(7 4jgzss x3a)8urfer of protons and neutrons, respectively, in the daughter nucleus?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A carbon-14 nucleus decays to a nit ubu/:f. y)6dex+j arz gj-g5rrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a gjf z +rb5u/ .ruye6j-:x)ad gmass of 14.003242 u and nitrogen-14 has a mass of 14.003074 u?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomicz9(s-zs*y( ;nhxxz q2xitk9 /c8v jjc number 6 undergoes $b-$ decay. Its atomic number is now

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the half-life of a material is 45 years, how much will be lef-25tipasa5 gzt after 100 years?gazsi a55- 2tp

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the probability that an atom will dr7k0cc3t o lr(ecay this year if its half-life is 247 years?(7klrccto r03

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was certifiedh /a)db )47bzvswo k41xzcv/j at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive sample has a half-life of 10 min. What fraction of the sa 8vbvletmd95 xl 9rw1a37i2 obmple is ltoa19rveiml 532w7db9 l8xvb eft after 40 min?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The half-life of radioactive iodine-137 is 8.0 dk,nc 4cka/ta +hk9bb,ays. How many iodine nuclei are necessary to pr9aa,c ktk 4nbcb,/kh+ oduce an activity of $1.0 \; \mu Ci$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive substance with hc vxah(4fen j 22r06e2sn8iqi ,:rjy a half-life of 3.0 days has an initial activity of ix rey(28nifjc20 anqjvh62h:4,rse $0.24 \; Ci$. What is its activity after 6.0 days?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The radioactivity due to carbon-14 measured in a piece of a wooden m rqwa2,e fn.xm :7a1s;5i6e l7ejqibcasket from an ancient burial site mmiq l; iaw e2raj.7eb,x7e5:s1 fqn6was 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. Thus we would estimate the age of the artifact to be about

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long would it tae7; spgc+5od) i v4uo*ghk)ot ke $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long will it takeo ;2 k9nms0wc;bsf.b+hip2jnnm+ f/s a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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总分:71分 及格:42.6分 时间:不限时
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