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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 has0dx l7 cu lo.1e6snae; the 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 i-ahxl5 - 3tnnxs

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleusgu3p7x 8 xz7yd f :e+batrdq6;n1bix0 consists 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 .tdem,fu4 :dhdetermined 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 numbwe9 +5p jrw*wner 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 iate.z2dku; y2ts neutron number by N, which of the2 a. ykduz;t2e 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 n 4z,shr,d6 q hjithv)5wv5x( sumber of the nwvr s ,sv4)j ,55xztid(hhq6hucleus

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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 ab 6 ;qdp0olir:n 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 of 6u tdt.g7xcs+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 atomics:z1lh3df(h4p*tvhy: (yt v l number but with different numbers of neutrons are referred to asy :4hl(ds13 vttvp zyl: hhf*(

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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 nu(rvvo ln gt4kaz+83e 6clei 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 is7b(.7rc ja zrm 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 mass o69fg;s6z* ed vv5avixf a stable nucleus is alw e gi6vdv9x s6*;vfaz5ays

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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, energy a;e3lztwum tl 4yrl13tp 0 v/: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 contributeva) n.msx(z wt: kuq*+d 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 nucleonntwb.bwae-- 8 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 nucleo;ahr)cpf 4mp8wi ).cun

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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 nuclearizo/u p1n /z)x+z0oyw 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 foic4gnq; il v,z v0k7xumz a;z0g a5t4.rce between adjacent protons in a nucle;7v iz a;vax0n4kqz tu 4i,gm.0cgzl5us 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 penetrateq+6: icu0bhwro42 ps u

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratef4-o*x+:tbc*2pkp6 yqxzd zp

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat2eb*63zfvv3ty h ft3ie

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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 knowbwr(ue ;j 9e ; hvh:+:7.vmjho4gqtswn 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 kj .r 4.xr)+s zn,vaaopnown 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 atthj6rzn 4hackqqj5* ,0ik-91/r +g lksjp ot ,zracted 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 equalg lrl3ss;d33:g2 1sehsedfmw-*(k tt 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 unstx2h tvpqm(6 a0f9 sj.jable nucleus, the atomic mass numbtj q0(psmj9.ax f2vh 6er 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 emitted from an unstable nucleus, the atomic numbe)wq,lc y7- s/:fhajj hr of thl fhqs/jywhc- ,)7 :jae 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 repres1*;tt(n8vys jzlkjf3 ew av16 ents

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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 :regpjc na 71 iu:fzqi*3w)g: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 fbf3o 7 nijy)i:6oyd5jrom 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 8djdgv;2+ actz(xt616x uafy mass?

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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 in a qzz 1wy183l8dkgrd)u ddition to electric charge, energy, anzw)y8 zukrdl q1 d381gd 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 radioactiv33- 7leygn8umx+ eo:ak)vy rl e 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 fg9rs7u-ajs7a(b 8h e-14 is often used. This nucleus emits a single beta paa-g7ahseb7uf 98 sr j(rticle when it 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 magnetic field to curve charged particles isy7 6t perb4)xw 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 usesb8qz +yftma21 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 1s pf hy+//e8p4n d68fzdl mooreplaced 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 atomic number 6 has 9u :,ekpaut i0how many protons u0upa ,e:9tik?

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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 4ohp t,;-afer mass number of 14 and atomic number 6 has how many neutronf,h r;toa -4eps?

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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, respect- 60x7j fzayfqively. How manyjxa-0q6 fzy7f 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 number for calcium 39 are 20 angt ale n65:rl 6n9rsk)d 39, respectively. Holn)ag:r6l9snte 6 rk5 w many 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 calcium 39ydr.7ug*ww9i : /eisxjj5 k2p s0 fom: are 20 and 39, respectively. How :7sj rg0 /dus2ip. :w9j 5xki*yw eomfmany 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 39m.gec+8m)ocs ,komxr7 .e c0r are 20 and 39, respectively. How m0 msko. +,e c)co7.ermxg mcr8any neutrons 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, neutrons, and electrons islq7 yug)ovn0zn-sg6+p 8 bdd2 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-148c/yr slt*vf 1 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 numqdseg) d mkhc( d 89r/5w,xd0gn,y gls.hpj3;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 e- ljxz6ian9r 9g73i idnergy 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 on3bk8. bi2bn;glw / ksae 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 go4.1mk nn efpu; aw5m(oes through alpha decay. Its atomic number is nofk4 (5nm;uowpne m.1aw

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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 -r q(r)hx)g mjty2b 9 uxb:*pn249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectigpj*)) rqmb tx9:2r(unb-xy hvely, 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 t,lm( m 6u :;hldvap78+dyo cmno a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if mcldvym anmo86+ p7l(u;dh:,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 undergoer .y9/qwh gp1w xux2.as $b-$ 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 m 5gxxxogu/ .2gid*va :aterial is 45 years, how much will be left after 100 years?xu*g xxvdg2g5o. / ia:

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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 l 2 ld+8o/.k-togktyo will decay this year if its half-life is 247 yo lot/d8ko+- .kgyt 2lears?

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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 certifiedj*rzxm cklk 1.:ji84c 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. -2pu5 8jxpc ziye: ,mx What fraction of the sample is lef 285peci yxu ,:-pzxjmt 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 io c;q*ho5yg* 6ekumr:; mv ju8jdine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activio u:; rkcveq gj*m8y h5uj6;*mty 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 substancuk:6ch * ff slp2u6sku+,ema 9e with a half-life of 3.0 days has an initial activity of uluphcsuaf2*9k ,m s6+ef6:k $0.24 \; Ci$. 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 woodefp k.3xpgb9tnlq(,n*2li :yen 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 woodkpq n 2ytpfenll i( ,.3*x:bg9 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 tak6l0v w2ant ae4e $4.0 \times 10^{20} \; atoms$ 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 1x41d)gt,xp fspic;0tw)iq ef-1lqjn2 5 ul o$4.5 \; Ci$ 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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当前第 题,此次习题练习共有 71 道题

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