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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 leaiixa j m:wie:6 khfe96t(t 9j)st 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 is4ila6:c5 poxxy fal03,mwq g;

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cons)go- mxp-jzbp;/ q:t1 hprn/ jists 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 determin 2bve+i- mdpa /qry+.wrb;hfd g./w q*ed 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 obkn0ggd3 a. e v b2x3n+fe4-bu6*svqthe number 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 m+dz ij:7wyz 90c-fezwr6rm (, and its neutron number by N, wh76 m r0zej f9icmw-ryd(w:zz+ ich 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 number of t fqc5kx)b8o /lhe nuclf5kc8 b/qolx )eus

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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 atomqd; )+ rk5r vevv8ugk8 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 stable nucb 5mv8h:0h(62 dl j)kk5b;gi2rv r6nwj egumhleus 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 noynp 8cj(+3beumber but with different numbers of neutrons are referred to be8c3j p(+oy nas

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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 witdw ,;8ylndi8zofqi. mc1 su3/ h

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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 definy m)-xh n7x-uwu06hk. hbhwj.yf.dl/ed 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 o0tt ej/kmjh0 +c3xowm. kx;l vwnooxj .x)58:f its separate protons and neutrons, the total mass of a stable nucwvmwo30x/h :.t5 e+ 0.l)ojxjx t km ;koxncj8leus 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 nucleus,ve;u.lcqja k4-x 7kl. 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 tk tnmas/pd1g1 /e;p 9to

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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 iuqeo* kk5l3/ 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 per nucleonc*gjpa/t,t:f j3+ ;t hsq0x qm3 zb;wr6l0mvp

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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.4 c5izl etg,2 cfg5yb 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 l a;g/hpnx 1b 2i9nj4yadjacent protons in a nucleu;yph/ bl1a n4 x2nijg9s 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 ,ov56kjx-j1ful)-zty7 3mqib0wtf m ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr(v o-a-izhqmo0 dntf5tdd) -w/ , rrk:ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat0/ yo 7f9trquje

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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 knoa,lry h m8+gd(a(p+tf49arq cwn 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 asck4 aib. vn mg9:m/rh/q8xvj3

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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 atsgi5. jhx4b 8mk;9s tktracted 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 c45m mrgcr7eq7kb s )p6,fph4 an atomic 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 unstable nucleus, the atomic mass nu2ymm) ;+vl zo eg.ua+umber of 2 a)zuvoye.umgm +l;+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 emitted from an unstable nucleus, the atomic number of-6xy590fkufk3av uo w the nu6 w 9afku3y0-ofv5 ukxcleus

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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 931lsai9 e x5/e3f.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 most nearly the samt1ok,)7oo)w t.pqod k4 (clfse 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 emit:c.ier z( -g: n7rngm7grm7moted 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?1c meqs,h1y :t

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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 val.wp2) ihuwgt9: r 8mxtue is conserved in addition to electric charge, energy, an ti. gpxt9uw)mr 28:whd 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 substancex,/8j tf.dn9ofh kim0 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, carbo 6ei.3zayp*uft v5,o 2o.b z7sn;ne ljn-14 is often used. This nucleus emits a single beta particle when it decays. When vz63 ti5.uoo*z, ;ans2bpfn.e e jy7l 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 u6 t3co.6igwf fses a magnetic 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 liquid hy:r-hu:+ gzuo.v ny+vj drogen 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 chambc6h0mgnq /*hf ers 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 df9gl 3)d c4yydplmg16nj(q2 14 and atomic number 6 has how many protons fl 2gyjyd14)qp9(3l6cndmd g?

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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 masrsb8d6e4bo v7 sb2q 4ws number of 14 and atomic number 6 has how many neutrobdb46esbs2worv q784ns?

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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 m0/-yfakkjj8n( ca5l)o i*fzo;.y br39 are 20 and 39, respectively. How many nucleons ar8f0j(5-bz.yi/ma rl oj) kkf;a*ycone 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 calcium 39 are 20 and 39, res xmx1a 6jelx lvt0d+ 8nuto1(5pectively. How many el xle8v5(6 jon1x+ultd1 mta0x ectrons 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 anz2) zzz +uyi8sd 39, respectively. Howuz)zz s8z+i2y many 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, respectively. a6qo*n;v-,a 4s tcszm How many neutrons are in one ato6 ,m4na -;qtco*z avssm?

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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 h3 iy ; ,gq0+vm wwdik6m6rb*tnumber 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-14b/zz0e bp+2v e 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 mass number 3vdg(3h/, kon6up w/hg2,

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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 )6 2:od5hguns p+twygnergy 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 fromwo2qv 1doih/9 4:czlv $^9Be$?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomil4j7amgzf-n* c number 88 goes through alpha decay. Its atomic number is 4f*7mnagz -jl now

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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 underg4 m iis9kikr9(oes alpha decay, what are kmrki i499s(ithe 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 a nitrog.mk 7lyy ;mhz(en-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass h. k ;myz(myl7of 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 atom31: w) 9qab f7wz0a wsi bxoszg*y*jj5ic 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 left )5y9pr;8d g hvpk.n kw 7n(qdsafter 100 yearp n g wknp78skq;.yd9h5d (rv)s?

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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 anf;i6 nos* fs7*s: gexh atom will decay this year if its half-life is 247 g;fo*:x fise s6 hs*7nyears?

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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 atyb-i15u-kb pvc 2 4xu alfwqp9s 4k35t $10 \; \mu Ci$ 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.mtk 1(b3kbak +uuxj07 What fraction of the sample is left after 40 mikuju3 ab(7bm+0kk xt1n?

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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 - pt.evw nig(x:h(u6h days. How many iodine nuclei are necessary to produce an activi-i gve.whnu(h6(pt : xty 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 substanc. chr +4eu+mgre with a half-life of 3.0 days has an initial activity of + crrem+u .g4h$0.24 \; Ci$. 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,h6 qwt f8tvo6 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 pio6 f8t,wvqht6 ece 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 takhfv.3 lf/-gh te $4.0 \times 10^{20} \; atoms$ 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 9kvfofz lr3y+ i dvm-u95.kv /j;nv9s$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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