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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 h owwn8 pn0,mv*as 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:v(x+ne2s o i:e,aqus

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists oftp7xql:uh4, n

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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 isch +ai3a;x+ vlz,pjq+ de/z2z 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 the numb3q ppjlq/xy9d s i9z0.er 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, iduc48j*rnb joltso -1uc2 l9 +m.l 3 x6whjf7nts atomic mass by A, and its neutron number by N, which of the follo2c sux.dr8w1l-6jmn+uoc9nlh 3jlbj*7 to4fwing 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 emitt0*0s c kgzp8 6 uamvra/6yua2yed from an unstable nucleus, the atomic mass number of the g*ay 02kp8z66u /amryasu0 cv nucleus

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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 atomxt, .lx-pcq4- v3cy2e0hjwgt 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 nucleus because ofzq x4ea-x7q5z

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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 o4wferj3o 0 *ybut with different numbers of neutrons are referr fr0 y3e4woj*oed 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 ngtttz ..7r,0nm zfmc :uclei 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 definefne07au 2fz:r7bz3 zjd 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,t ebh d+wm o:x+)1r7qi the total mass of a stable nucleus is always:ow1++ir7hb m) xedt q

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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 nucleugih33.xe3 x(ed ziy0as, 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 nuclet-o0qcfa hqik(9f,w/ us 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 pecmk -e (c8x:c;z +hxemr 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 nk6- yz xjsi. x1zed/d25uyjg /ucleon

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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 force is t )+ctknv +3fat :0lxufalse?

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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 bjd:v*sv 7 26dikv36 rdfu,nwzetween adjacent protons in a nucle23fv7dskjzvu dr :v6dw*,6nius 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 penetrate*lk h xz1zu;+r

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratukrbzl6rub d o- vox02 .w.76l: 8csrke

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat 5sb73s mc8bite

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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 kn81nrev ,zvq x aj.7 39kd;vfwkown 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 know u,ae3s+lzu :3cyfgep78ci op917atbn 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 attk; :oqju1f:ji racted 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 and( ,fhjq o4b3j 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 partic zi 7ca+bi92tlle is emitted from an unstable nucleus, the atomic mass number o cal2iit+bz97 f 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 i dl* mixlul8kt,)l2h-s emitted from an unstable nucleus, the atomic number of ul,t-kh2*l8di lm lx) the 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 -: hbi0sv z-vh5 MY - 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 ne8 ;w4sdjp8ich . pm-ka.pk8 ftarly 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 emitted f kd bswau r8-t4(mz05arom 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* kwmc68yzhutd)w0z. 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 dep h49ltbz: ;v wuoo7i-cay, what value is conserved in addition to electric charge, energy, and moment-94lwoz;hpv: u 7tobium?

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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 (dnck8h:2n )0j7jtr;f ma wwea 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 nucleus emyi u3q,: jv0vfits a single beta particle when it decays. When this happeuy30 qfji:v,vns, 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 magnetic6 mh6oiap6j6 f +9wvaewq u)c7 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 9(t5qho/x;2f ieqs5zk1pcq++ xg la phydrogen 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 r 3gual3h 1.l 58qjspfbeplaced 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 a)ddz6v./j c xtbt21bttomic number 6 has how many protons6j)vt b1cdt/tb2x. dz?

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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 n e8d*oe n5*yk;em05 oxuobr+a umber of 14 and atomic number 6 has how many neutrons5d xy*e k*ba r oeo;o+50eu8nm?

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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 vv /0y +rrebj)bbd m1/- gm)nt39, respectively. How many nucl/dv-yt+)1vmmebjnr)b 0/ br g eons 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 x mh;*4z6 fpbsnumber for calcium 39 are 20 and 39, respectively. How many electrons are ;*x 6mbhszfp4 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, 5egcut )7uq,k *uj(er respectively. How many pre,uu c7ur)5 tgeq (*jkotons 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 anzxfrssz0v8 4d8//lwgipf h)/ipm7 :w d 39, respectively. How many neutrons are inlf / p7/rizs:mg/)pwvz488fiwds x0h 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 olgn+uj cxel*, y 4j +289g6lzinfqb6af 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 ;hsor2 upotkje8/z) 5 2tfos8 there in the carbon-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 1 f 0usqgh4z0(i5 has an 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 energy of k6m7a1h9xfuj $^4He$.

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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 rep2wm92k9*/ p 0al wpkcqnhlc2move 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 through alpha decay. Its atomic nl* nh,mvu:i.bumber is now,l*bhui v:. mn

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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 .cs bprmb p;.h0 f0a8care the number of protons . hmrb;p.bsc ac0fp08and 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 nitdi6 s.i)u+ x8rsl3wkxur o 0k1z :5yiyrogen-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 of 14.00wi0z: 8x)+u u 3osydrxiik61l k5rs.y 3074 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 numbe(fbcir: kignqf c qr46v;3byf h 85o*/r 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 admzs/uu;vcp 2e( *4sj w5evr6fter 100 years?v rzp /w ;u (jd5vesc*eu42ms6

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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 will decay this year if its x obo:.)wxkn; half-life is 24 :;k)x.xnowb o7 years?

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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 a ql)5f;rxnx: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 mfcy +0;wbm,g ub dh-2min. What fraction of the sample is f; -c+u0,d2wmby hmbgleft 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 iodine-137 is 8.0 days. How ma d;97f3mmj.opzhba;zy4n 9l :* nore n4l8lwony iodine nuclei are necessary to prodo8l9lz 3p:ner m47lfynoohm;j 9z4.;wdnab*uce 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 : e jno8im6dsr72fil1has an initial activity of orenlifdi s87: 1 j6m2$0.24 \; Ci$. 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 measuredw+ijd;l l5h2b3 n vz1w in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute fvw+hzn i35;wbd1 2jllrom 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 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 yyh5 e8n0zz m.hqd9iowv5f8;$4.0 \times 10^{20} \; atoms$ 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 an3 o l ;ttv.(adnb-n*m $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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