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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 has the least maf g7.+ pwnl9ve5dk 3aass?

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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 -ys4qvlq6g;z6-py *o*f.w s k-lcw mem ptz4 ,is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cons2ks98fcva;v6p i slf3q: yd+rists 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 byhcl p+5f xh4 07(lfjxhxcms 7( 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 nz/btyr- xdzf 4gmuzr53u6 a, 4umber 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 numbmp68i:j. x 2sdv4mzw zer is given by Z, its atomic mass by A, and its neutron number by N, which of the following is dmpi2jswm:4 8 v x.z6zcorrect?

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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 emitt -du*03slymiq ed from an unstable nucleus, the atomic mass number of the nuclem-3us0 l qdiy*us

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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 atom is 0 ajaee8e2t0l

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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 nuclev0 b/dxr, j8r fr07nwsus 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 numbers of neuf.d2,diy4/ wcukvfqe. v p5; ktrons are referred yqfvcw45u.pdi .;v2 k,/fk ed 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 havf+b.57*f8i sno* v-tg x uqrene 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 as,6r3 n)pbuvqt-+kxc hwwh5 u3

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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, tqycqel( ) -b6u; *vkmwhe total mass of a s*euyvk ;-6bcq wl q)(mtable 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 nuclenxw7x+ ma+q5zw.h3e 8 ej bd5fus, 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 t6ya x+bg d7u1go

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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 v;b0gz4 evnf :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 nuclfjt(iqtcze r.s 2f9u4 ( 2p+m1xq-xnjeon

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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 *wxiw35cfp :z7 sg.drforce 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 adja- 1evi4m5fu .b7gecotr+xo(m cent protons in a nucle mif omt.5 xcoevg1( 47-+eurbus 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 penetrate2qf5 1 77du-,yc9cpqb yctxgt

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra 1((upde :wel)tbmt k*te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrw gyze4e+/e q,ate

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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 alsmo 2spm39wejb342k g oo known 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 kno3ak 3psii8gu7wn 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 a tpcac8-6hthrtg vu9*90nu+z ttracted 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 * 8iz yb1vn6 kc6uz)pcmass 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 unstablep6(uzijfad rx+v 3n4-/auhh( nucleus, the atomic mass numbexadjf n-6 (i+hv rpuz(/3ha4 ur 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 numbc3dkhf 1q adoc85 r)b2:q8vo der of the nub3:roqv)5 dkhcd8od 821f caq cleus

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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 w jx.(;g77nw dp- dra0n s:jef931.5 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 same as a ga-xw*i(p:ul:g:,( u adg tfmksmma 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 emitte .uj7y2mexkvs/n, bq* p 4ia 1-pw0yxcd 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 mo - 4cualvf+c.ymn(6cd st 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 a87bgbsjrgw+n) oe *4 9fy.m4zqa hzu *ddition to electric charge, energy, and g*fnr.h 8q)e49z mj 4aybgs*ozw+ub7momentum?

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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 substance as it dee70 u:-twfmhzcays?

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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 nuc /q, i9ehd0mwdleus emits a single beta particle when it decays. When this happens, the resulting nucleus ihd0qd9/m we, 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 cp ztzxa 274iku2 u3l 7clqx +50yngj(sy01cgpharged 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 hydrox,u1fb oo 2c:pgen 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 repla;sd(c:r hvub r:3)jeuced 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 anxetth7 2 /h,gxd atomic number 6 has how many protons/ hh7xte2, xtg?

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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 atomic number 6 has how many neutuv w-iey +)a,groiw)ua+ ,e-vy gns?

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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 aq:oc7 e)jexz3-*ft1:wxuq8 8tce ws ;zg)td are 20 and 39, respectively. How many nucleons 3:;xg-o:w f8ce s)xctj 1ut*e) zqd waq8zet7are 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, respectively *f ;v;s pn7clo/0ouab. How man;*/un v;aclb 07opfosy 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 39 are 20 and 39, requ;)sl1,ugb-hq eui dn61 3yj spectively. How many protons are in one1g13 )ybsiu n,6du j;quh-lq e 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 395dp .t)if q 2ulz6qrd-, respectively. How ma ddi5qu . trfzlp2-q6)ny 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,d (qlyoz4b(d;: 7eljar 0ghi ) 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 nc*o,gxrwji :yjne 3-( ucleus?

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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 isotopd6aichss a-m8f-y/icb3s. ljq-w/jx-,6 uz pe 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 energy *ohdzbv b qqq ;0x2;*wvp37vjof $^4He$.

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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 removey:8r)zj fzfzj3 k 4+-axi 6jqs 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 numb -a3dvde 9s,i hze9q+zer 88 goes through alpha decay. Its atomic number is 39zddh aq9 ei zse-v,+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 249r-2f -bg4n4acloy:i jv/sb s4 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectiv 2cs l4 sg-o:b/r-44vyjfnabiely, 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 ofl 4j-xm uz7n0)y8v(y i ,ky9lvpxivnb//8 a to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is ki84-vxi x fa,z nj(0v/bv/uym8p 7ln)lyoy9 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 xnlgxm )y0y5.6 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 after 100)*8 6x*wrf*tu5ai njcwbo0 z w year*ua w0 rfbo8t)zc*w5* n ijx6ws?

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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 ani:ak lz zwr6t/3;1aql atom will decay this year if its half-life is 247 ye kltz w/arazi;q:36l1ars?

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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 ik :4yxm )p3 wmaie,7s ii2lk4$10 \; \mu Ci$ 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 s(lzl5 (qyn, v,;vxv-k pvwt0a half-life of 10 min. What fraction of the sample is left after l-pvy, 5xswqvk,v(vtn; 0(zl 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 man,xjsz 7.hse 8qy iodine nuclei are necessary to zj,qess.x7 8 hproduce 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 halk6tt5b -adqrk*2m0 bzm /q a*nf-life of 3.0 days has an initial activity of rb*0ad an/2 *kqm bkqt6- t5zm$0.24 \; Ci$. 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* 8 goo9sv(g7hb icj:d a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given v*b sig78d:j hgo9(ocsample, 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 take t9n 81iw2h+ jqyc3sow8) p pwo$4.0 \times 10^{20} \; atoms$ 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 hhoevi7sqpm/ ilf9 rj 15)v(8 $4.5 \; Ci$ 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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