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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 has05jkvvyvv(- t p ngc+6 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 is mcoe ttsop67v ox g:g9*-2b*e

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistsq8qiq5dax(d6ud+, uj: sjr b * 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 numovkirwlqa9u.5-r 5qig2.+ f k ber 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 z48 g2myo gmgowofzv 7k.fnls(g:f 361 tts )8the 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 ad5nsc ; )uymgputa5((y; zp u+tomic mass by A, and its neutron numbu ;npt;y+uu gyc5p(ams( )5zder by N, 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 mass6p w5da+ryb.k number of the nucleu 56rwk p.+dbyas

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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 k7rg ,z3k(;k rz5ek yaan 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 siobw8.be 2ut, u )ojv+pze of 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 d 6;h:nya h9kxdifferent numbers of neutrons are referrex6n ;hdy9h :kad 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 uel2jmxpxb/w +x :4w6 have nuclei 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 defined d:j i 5k7dhro,ra5by 3as

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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 separuuw14 wr( lz;rate protons and neutrons, the total mass of a stabrl(zuw1uw 4r; le 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 formnlgu) *e8/il89)4 as (exu9ppkvjlhj .) tme i a stable 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 contl1f (ef*t5kk kributed 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 nuw h 7rd+r8n:you/cbzlo8v 74pcleon 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 py9x g vy3 /l6mygdjm.,er 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 nucnb*bc tzl nf2a1cu .2,lear 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 fh(jo w 6shk72iorce between adjacent protons in a nucleus is6jho( 2ikwh7 s

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetra*e 5sx/zza(*kvq6vl g c s-vjrr-y 8*fte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratx 0ql+3 xboy d,wr4qi;e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr9qc+;c)3 r+aj h dphvuate

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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 a5 ,p,xc,s+aije xo 1obd*7qxws

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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 ao*7 - mjc0oeqj4ptava/c 6g8ys

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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 attracted to a 5u(wn: 4kahie

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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 et *tn6udpkn:w*51-hidl kn x:qual 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 itfq x;o( ;*yvatomic mass number of the nuq(; f *xoi;ytvcleus

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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 atocyegiwz9iy-)2s yl )7f3f fp5mic number of the nucleuey2czwy g-i53i)lpfys7 9f) fs

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - M*i bve;d ps(5nb6 zjs:hhn /(aY - Ma) x 931.5 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 sam5tvwo( o bg5t6i dcmwv q6;-(qe 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 )nnl.kzd.50 w +uwnbonucleus,

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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 .xdjre6pi y2 :lumnek0 ,an 92most 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 ,wth7flq*:,w/ k eibr decay, what value is conserved in addition to elecwqlk r ,:tfh,7w*b/ eitric 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-lifevm7me )m2 aw uqz4h.h:/xr f-f of a 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 1ae6;m,erhd j used. This nucleus emits a single beta particle when it decays. When this happens, the resulting nucleu, djr eh6a1;ems 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 c-2x h+psj(96 sr/ey7 zkwvnirharged 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 u6uxc7 tllr3 cj)7iwdtj 09b 2ases 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 chambers becadd gumb x 49zi, qq ,kmqdic+sa6zew07x8+a4 (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 atoyb ,jd4 nqx*ozb326mgmic number 6 has how many protons2bqnj o 6zxd*b3m4y,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 mass numbermk;/x+m vk4 -quc/skj of 14 and atomic number 6 has how many neutrons?kkscu/k;+4m /mv-qj x

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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, zj+brl6*mc bxq *tq) 0respectively. How many nucleons are rqq +t6l bb*c*x )j0zmin 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 2 lzb2up5 8 lc+wc*u(kleu/,et0 and 39, respectively. How many electrons are in one atom?u2*k c uzwltelp5,l 8bc/+e( u

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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 and 39, respectively. Hznx-+v4: wmyj ow 4vym n:w-+xzj 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 39l45m aiqmtrr 687led l*/rc4 r, respectively. How 7lt45aci6 *d relm4r8l m/qrrmany 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 nur kh*,af+ ;anrmber 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 ca+vj+h bcix6w/d ++eg4davg:w rbon-14 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 c *rh2r+;8b wrzbz/ fkan isotope of 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 energyeg;j wfyub j0m4 ;gq5k5k.8 3j:vj dij 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 fro0)ikm j 2xx/vy 3 j8f5zk4 t:ii5qcoikm $^9Be$?

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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 throug; ke gjo+lo,mpz;s tj .,ntg+3h alpha decay. Its atomic number is kg;jel .go3;+s, n+zjm, toptnow

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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 addh *n qde3ve +2qbq: yb+)s3ckb:,og nd 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daugb:yk, n q+ :3gvsdoq2ee+bc)3*qh bdd hter 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 decafdf-;ik;i( bu45fa guys to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is reld( fa kuifu;; bif4-g5eased 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 q03wpri 0sbb1y781 ca kk hie16 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 mvnwar h4 m 9,(am(r3wduch will be left after 100 years?3 hw9 rar ,dvmwan(4(m

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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 wil)1xufnyeq*9 te,dgo:e v9 y:n l decay this year if its half-life is 247 yearsf,9yxu ::ntyn d1v)9 oeq*ege ?

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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*h)7yhx sl+ rup. ln w;t6:ynlrh bm8/ 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 theg,ljg,lr; .b u/du)io sample is left after 40 midu.ul/jgr),l; g, iob n?

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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 iah h rht efr0l:w0*mso3;lh(0odine-137 is 8.0 days. How many iodine nuclei are necessary mwrh:0 o0 lsla3(rt;*hhfh0e 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 hass7u,6v )nub ys an initial activity of u) v7byn,s6su $0.24 \; Ci$. 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 mx*7e+ny 4 x rlwn40ucsbvk :n+easured 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 carbon-14, a beta emitter, is 5730 years. Thus we would estiwk:s n*0lv+ rx bx 4yn+47unecmate 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 take :yqk)s 4sn zr:jrt32 p$4.0 \times 10^{20} \; atoms$ 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 t o c42b:s3fvd,5ryt h$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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