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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 least mbjmab w8q68 3rass?

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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 dze5 :8ixiq9is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus c zu,m0cq9, i2 i,3bx:vvpovfgonsists 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 numbeq6g0rf /,tgg 0+ 9ukigu cqe.cr 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 numbetjd5z: c a7h-3 przok+r 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 Zgjbadp moc5+5v 9:e8rp y.,tw , its atomic mass by A, and its neutron number by N, which of the f b5.p+cm5dj,9 agpr: w tyevo8ollowing 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 emitted from an unstable nucleus, the atomic mass number dh*qup8t,p /e04 i2 8pffow qgof the nu4qu8,pp0f ofqp 8h 2e*tigwd/cleus

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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 atogla; o b mn+kt8,c ) u3p3ze.gcijnq16m 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 y vvv 3/: vaf8m4tj)kva 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 di0kt2cx et,k 8r3:*t9s es hj/adzy.cvfferent numbers of neutrons are refer0s s2jktx 8y,./aevcczt:e*tkhd 93 rred 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 have nuclei) cr.0psnvtoyaz64wq f.09f pf4jl+q 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 h gxtwc/o)sk ea/-k:-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 itss4dy;v 0aqn q. separate protons and neutrons, the total mass of a sanqsq 4vdy.; 0table nucleus 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 form a ste432 3g0jes;yzjm j-z mofc 4kable 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 tepp/2z a b)fv/o

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy pe icg:+sg / . mk/ytnh/mi6yq(s-xx ;rrr 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 pr6 xosab z33p919xe uter 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 statements concerning the nuclear force is false?di50 w b.uvp u(o t)83t ysb*;vg;jqua

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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 forceb(zy0h,(n o cq5 -nmsq between adjacent protons in a nu(( bzq m yh,-c0s5nqnocleus 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 penet gf3ddx;htthu,6z- 8mrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratecco-4 te9th.o

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate;6mms 9hyq,ngpr z 67e

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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 known gw2 a zxi6mqma70+ra 2as

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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 knownnx9ok+x)jbe/ 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 be a82cttp a+c zaje 3r;-rttracted 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 atomlw2 f;nyi) yi6ic mass equal 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 unstzv9w -q 54utepable nucleus, the atomic mass number of the w9u z54pq-vetnucleus

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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 ladd*9*a)sla r7 up.w atomic number of the *7a.lu)ar s9 wdd*lapnucleus

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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 representsh cwu 80l:)7q6cipwtg

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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 nearl t8gmcpz-c0k+e8* v oey 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 .lif3sh*dmb+m g5l 1zunstable 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 m*da l irn3h-wb8t7ti;am4zma tiluwm (7 u0 (7ass?

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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, wlmk mfk wm+it.wd6:jb4 ; . odtx0u;o9hat value is conserved in addition to electric charge, f4to +l9.;d6 b;mxm:tmd.ki u0 wwko jenergy, 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 rad,ia*p z vk6 l:(lsjnu2ioactive 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. u:d+ u+-fd(hm6y ixyi This nucleus emits a single beta particle when it: h-xdui6u+yi +(fmyd decays. When this happens, 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 magneti tp2gyi 62:bscc 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 dg,ztyi i tgd2 1y286kx wz2aqk2o() tliquid 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 bee4i;wbe1. n jgdn replaced by bubble chambers 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 atomi7fx( v*jo/eh*g qrz0y c number 6 has how many protons?/veh7jof(y*qz g0xr *

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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 atom*a.*belq1ll eic number 6 has how many neutrons*.e lal 1elbq*?

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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 abj 9s6/ 7ch tx *jvrzdt9-hu4ere 20 and 39, respectively. How many -d4r 6uj9v79h/s xtzeh*ctj bnucleons 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 number for calci r5r1 6by0qbeium 39 are 20 and 39, respectively. How many electrons are in ob5yir1 q0eb6rne 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 calciumg:nhx )us:+ gn 39 are 20 and 39, respectively. How many proton h xnn+g:)su:gs 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 ma;,q) owarg3gu1k:sless number for calcium 39 are 20 and 39, respectively. How many neg3 rg),1ol :kqwsae;uutrons are 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 number of protons, ne5vxc(7-7a/mxm yt h.n tw:ew nutrons, 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 nucleu6sa*r6n q3w hrs?

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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 mas.fv .- 7eva0:e0x smy om6.w: tiu:apzf,klsms 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 e rzl) av1sn2xi ,:d-efnergy 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 one proton .te qvn-9i1vtfv2*tl t0z nx5 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 goes throughfm c ,3utro,j* alpha decay. Its atomic number is n m*ftcu j,,3roow

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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 decaypexk 3 dv1 sn* )e d6j29l1ezgwh)m6zy, what are 1dz v6z)nm1w ed3p9 e6yx jgekl2h *)sthe number 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 aarbkb/6 hqrc:hl4 bf)z3a1( w nitrogen-14 nucleus by beta decay. How much energy (in MeV) is h:f)4b k3zbwrqb/ra1a (l hc6released 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 und gbxb 05yu*na9ergoes $b-$ 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 n-.f24-hwmxupm-j7 ydzn3 qx material is 45 years, how much will be left after 100 yearsm-und3m npyxj-h 7zqx2.4 f- w?

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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 year if itt zltsm,qlfd .8y( +4qs half-life is 247 yez f+(l4.dmsyqt,lt q8ars?

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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 certifl+4 wl3ylt 44lu dpc8tied 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-liff37(nlh7 .ale1tv qhp e of 10 min. What fraction of the sample is left after 40 .v et7pfhn31 7qla lh(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 8.0h m)qb.vtvv0 ,jh27p r days. How many iodine nuclei are nece ht,jrh) q0p7vm2v.b vssary to produce 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 a half-life of 3.0 days has an initial-ku+k-gb 8 p-or+ju py activity of p b-kpujk-g+- o8 u+ry$0.24 \; Ci$. 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 dueiop xwt y8zvnr ;--z 2sa-l-1f to carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 cou-1z rxn-w -si 8o;zv ltfyp-a2nts 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 takj sh3d9b+k 0cie $4.0 \times 10^{20} \; atoms$ 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 nae pbwrvjbocr1k( 6 8h+yboo;r021-$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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