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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: 匿名未登录  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 h6zf*uj7zdl8 /wyh.k 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 pq- qz7cr oeo/tx)*-ps

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consii+ bvv.2 v9e1vrc m6gysts 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 numxisu2 72op1b/c 3xd3 ryv8q zaber 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 ni5zqc : uhwp xg:p (yshk-gxxkf2899+umber 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 5nq e mqbyp3tp m23)8onumber is given by Z, its atomic mass by A, and its neutron number by pbyqpq8)3m5 no23e tmN, which of the following 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 numbej,wzx2 tbqj1 +r of the nuq, 1+w2jz btxjcleus

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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 a9p bq2ho e68lztom 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 im1ndnd3 96uvstable 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 different numberni536(fw sxwcs of neutrons are refi356 x(snwf cwerred 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 w3s/hr*e.xvjyj *zt em7( f3ruyi;g4 tith

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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 ) k ;dti/e,tdk7dr(q fis 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 neutrons, the total romw tx +zp4,sj,4p l:mass of a s:4mx +prjwt, osl ,pz4table 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 stable nucleu l*wksjw /n:5zs, 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 h7kh:/ib p. moi6u*6jmm:e pba nucleus 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 nucleogumn, kg ,7oje8h8eh*n 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 pegoi389n//4wcuwwr p qd .bmv:r 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 nuclelkno0 ji* ,yk8ar 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 nucue k6ib21/qa uz+p+ 1kt sa(dllear force between adjacent protons in p6ti zalku(1a/ qe s2k++ b1dua nucleus 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 penetr,7 t q2ws60hedf -zbcjate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrathrk (7est3lq ;6oqj-fe

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratei*mu ph8o6: my

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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 asl, 94/v- bgv gjtkgys,

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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 knowb a 2;ys6lo+fiuzk 6*0kuxbh ,n 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 attraj fs5z:cvg *3i8*rxwg cted 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 5n;;cjv 6 ty2xx2ly j:hcrmm2c,jc r* 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 unstah:sc)o:l6 xgn(o.aar ble nucleus, the atomic mass number of thehog( 6 sn.::lraaoxc ) 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 emitted from an unstabl)6x9.wd o7 f(e csdcmue nucleus, the atomic number of the n9u )o.(6dc excd7smfwucleus

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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-g.a yb v5ljnceb w jq-vrw;ot 9nc::5eu+: 0q.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 followingowg d7;.mj xp* is most 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 e2 h/lrjnye+h9l. mh s5mitted 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 mass?u(u 7p 5kkw;jr

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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, whaou 5l,/qr-*p3q9rmd+ o ig4 ryxqqn e+t value is conserved in addition to electric charge +q/om9y, xq+ plr3qernu5g* dri-q4o, 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 )i-.ce agytf +radioactive 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 nw r.5j kprl7 ,bn5+b-0emjj biucleus emits a single beta particle when it decays. When this happens, the resulting nucleus 75+.bekl-5 j,rr0mnbbj ji pwis

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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 field to curvc.dba65mepfwks at +1h4 ,a f)e 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 liquid hydroge (sl/*(ho -a ba/qlsnbn 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 becaid.lzn sf7q,2c.qk8p use

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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 pr tt.lnq2(fo2fa/keqa ,dh. 8voton,nf thf(q./ okevqla .tad822s?

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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.i5dtewy( *ez of 14 and atomic number 6 has how many neutrons?i d(twy.e*5 ez

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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+ dulepz*hff8g+c/fyss 4 5 p. calcium 39 are 20 and 39, respectively. How many nucleons are in one ah zsf+p*ldg5cp4u +e 8./sfyf tom?

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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 calcium 3nm72 ,d,tmj i*r t*kbp9 are 20 and 39, respectively. How many eljmmdb*r 7,t kin,*p t2ectrons 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 calcium 39 are 20 1 dp 6;wr)rry+.gf5yj1lmtkr;a qej1zv- m2aand 39, respectively. How 1f a1.; k-2; qrl +m1y6amejrpwrgr)zd tj5v ymany 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 39 are 20 and 39, respej 8 8)oz e,ij6/u5uu orxl;atoctively. How many neutroiu ot)j;lrxe u86a/zo 8uj5o, ns 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 proto,s(vikrbu rl9q5d+9o)g 0eh0q j nw7yns, 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 g quu-s(0s3 cxnucleus?

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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 mass numc0 *xjs s4nuu6gh)1ub ber 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 of i*vi3*bp.; /tsncxg r $^4He$.

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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 ry;) e nhjn+g:p*0hmgvequired to 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 number 88 goes thro0dla01adq ;v wugh alpha decay. Its atomic number is nowvd0wa d0 l;1qa

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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, what arec6nqjn4 8dg1 d,5 gn/( pfidcy the number of protons and neutronj , /(ngpnq4dydd18ci 65fngcs, 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 to7esd3z(ci9wl: r,m i nc( jb1t a nitrogen-14 nucleus by beta decay. How much energy (in Mem i:bci(lrn9s3w(j, 1d7 zct eV) is released 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 undergoev+kbs hj p4- byiva. qbo))zg6/wif+8s $b-$ 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 left a)-v:l zy tcu+hfter 100 yearsczht v:)-+uyl?

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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 thakvxx*d4 ..ugi6l ug. pt an atom will decay this year if its half-life is 247 yea dg.6x*ivuulkg.4x. p rs?

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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 certified at/p6lxinb u02; (qauro+t jb)nnm )b :l $10 \; \mu Ci$ 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 thek esy4pcxk)-: sample is left afs:cex4- p)yk kter 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 days. How many i(0ap2fq) * sm:ylnlaec1s m*g odine nuclei are necessary to 0mfsmlaa2y(1 g*pqslc):n*e 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 inu2n,v c k9c(( zd/aqvzitial activity of ,uz akc n9dv/2q (zvc($0.24 \; Ci$. 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 meac fah2 2roe54usured in a piece of 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 carbo 422crhfua e5on-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 takt hm ko08bvo38e $4.0 \times 10^{20} \; atoms$ 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 ayujls(:tl eks,lv m7a 5x+ 8lk8:9iz e $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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