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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 the le8syv1oh-6g dr ast 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 i+; 88cfj/ y4eq fwfoht0 hyd9os

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists o nq3.p2v3:yd war/mb1 (jt,ss4vz itof

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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 numbrxz482j9fn hcer is determined by the 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 nff gp,) p:vj6uumber of

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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 its neutron 56bh uf39nt3u sehgn po3qb9 +number by N, which of the following ispsn3 uetubhb 93nh69q3 f g+5o 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 emitted from an unstable nucleus, the atomic mass number of thf ej5k9:z +mr-ts f(blem9 +fe:z(rs -tfk5bjl nucleus

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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 hydcr h-x50eh+ xlj))in an atom 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 +kfz*x ev *76il yvhi :ka1hz6of a stable 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 atomic number but with diuydu is -2(7v(5dfcc nfferent numbers of neutrons are referred t(uiy5d2-u 7sc( dn fcvo 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 have nuclei duag4wd*j vw e:z7u0. 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 unitgw 4act1r.1 ct is defined 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 neutrlup-6j0 h td9yi hutj.w+t+rw 9 +f+vnons, the total mass of a stable nucleus is always-w phf9t0 j 6iun+.yultrtj +9w+ +vdh

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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 form a stable nucleus,e-k 6dyzos7ssq s91 0f 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 dr wy(dc/-hi c ro:2eg,fv-i7nucleus is contributed to

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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 cx6xl(ay ,j: rybra e4poltg7;+qn+( nucleon 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 per1; 2zm k3fxsf cl(ysgvua/ 18v nucleon

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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 statementgph 3 t( 19n(jnn /lul/bi,vcgs concerning 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 force, the nuclear force between adja-(yb)s43 mt p pqvy.y0-a pwhvcent protons in a nuhwv ypv ytqm43pp-s-.)ya0( bcleus is

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrate97(sv yl nv3*sstyh d/

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrw zf/oq y ,+kw)*8clhzate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet,abbnesm1. ( yuuve 2/rate

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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 c)wywka4-+n cknown 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 known/et)0p 3fk3.srqa tw v 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 will g7 c427 cbstxzbe 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 eqt+ 2/ pvry.p)p/cmrz oual to

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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 emitted from an unstable poaf1*pr11 kz nucleus, the atomic mass numberkr1opa1fp z* 1 of the nucleus

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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 emittem ) mesf+,r/wjd from an unstable nucleus, the atomic number of the / jw+)frm,emsnucleus

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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 9t+sz mckecl d 2gr*( s9-+oa-j31.5 represents

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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 *sv9nic4u 7in*wn,9dne) d kvmost nearly the same as a gamma ray?

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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 emitted from an unstable nucleus,9mu as(1e za7s

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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 gskmtbk:61 d7mass?

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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 radioactive decay, what value is conserved i k-h/f v/ 0lboimoq z31ks)9axn addition to elec ok1fs3b/xla 0m9/)v-okz qihtric charge, 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 radious ; .aorjq72factive substance as it decays?

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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 nucleus emits a singlenu0jjgdu;la 6ry ;wk1ra4o3+ beta particle when it decays. When this happens, the resulting kw4j yuaa6;rg0run o 1dj+3; lnucleus 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 magnetic fieldr2;gpb6c f0fo3 4qh kh 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 thaj7czr )swng uz4i2b6mh3 /rpyes/sm zg792: ht uses liquid 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 chax:0bemw;g q8nqftv: 7mbers because

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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 how many vri3s. , w q bom4)hgx1rd5a0jprotonsb 5v4.od rhx0rw1sjq )3gam i,?

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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 number of 14 and atomic numbezzd 070irp5g gr 6 has how many neutron 0zgid7pg05z rs?

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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 number for calcium 39 are 20 and 39, re : rj6 d4yu0h tbd6;x+c3babogspectively. How many nucleons ; jo6b b6 adh40dc+ 3:yrxbgutare 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 number for3b*on cf5;4vbzjrqiuq x.;n 1 calcium 39 are 20 and 39, respectively. How mannni ;q541bqco3.b z xr;jv*fuy electrons are in one 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 number for calcioim .vqq xe5/6:v da0qum 39 are 20 and 39, respectively. How m6d5om.x0ieq :qq vv/aany protons 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 and mass number for calcium 32o dej2,a 0uxq9 are 20 and 39, respectively. How many neutrons ad 0o2,jux2a qere in one 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 nkx qmk:e0k,9wumber of 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 carbon-14 ( 9ai 939+ tyf.dmdlcif 9zoi la6f5yrnucleus?

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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 o m dl.db8l(*spf mass 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 energy 0a9hp ;5e9d slj gilh,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 oq(jtn.q;,gy remove one 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 nx /nb81o4s/. gyq rpsk.wcgm.itn7z9umber 88 goes through alpha decay. Its atomic number is nop.mn wnk.yg8t7xizs c rq sg.b1/o4 /9w

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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 nmsp doysx:b kp; f,4-p /b gcd1uv*w *9r:q-wjucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectivel-:dp r;1*v*w-b,m4 :gw k s/jxyq9b p dfspcuoy, 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 nitrogen-14 nucleus by beta decay. How much e 5vm:ibpl, ydpa3a6-snergy (in MeV) is releaav:56 bdly,p3 aip- mssed if carbon-14 has a mass 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 atomic number 6 undergoemarwcltupz6cmtsn+ .x +h 80; 0b 8l9vs $b-$ 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,d *mq lw2g c(tn.xtw3m8r 51rbh0 p.ap how much will be left after 100 year*ht0m d(g.pxarn 82 5cqr mt.plw13 bws?

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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 decay this yea k2i)epj+zn;fog 6xzu );;ed ar if its half-life is 247 6ui j zzgk2eae;xfon;)+;dp ) years?

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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 certid i13h sco5h-xfied 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 samu8mamy4me*m6vt+i 3w2 k5mw;h wc kh, ple is left after 40 min?w, w5*mky+m8c2mmk4um3 6 eta; ihhvw

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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 radioac(g8kka7 e7fiv q7-kqjtive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity7 7kk-8qq(kja gv7efi 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 a half-life of 3.0 days hasuevy9ka xxw-ckgq;w m .1d 280 an initial activity of ;v.1qkm wx 08kawg 9uey2-c xd$0.24 \; Ci$. 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 om47;i 8ogcceb budd4gsm7p (6 f 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 betadp6bs4 e8g7 ;c4mimgub ocd7( 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 taeg8;nt20m.c b*dxq s tke $4.0 \times 10^{20} \; atoms$ 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 take a li(ht eb4 i+leu7z8 y6$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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