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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 th9air6 g(1xsnx 73pfob e 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 isg r*af5ao7x1k

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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 oi5poi37 j5 mhd yg(ffn1 2t-wvqwo9,q +d2kowf

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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 detgxehqnb 9s 26xuie s4cg6335v ermined 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 determine xb 5c8 ;j ;rr+rop;:.mce.;*qsjxiq mfz u1old by the 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 numbdi9l:j2r f yg5)2 jh-txz 5tfwer is given by Z, its atomic mass by A, and its neutron number by N, which of 2 y fijrjxlft):z d55g2hw 9t-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 2f4sh 7y,)b orbwyfs) k8/obinucleus, the atomic mass number of the nucl8fk y4b7i,owb ys)sbor2h /f )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 al 4y-rjc(dd pe(r yoq7sem350 tom 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 v1bmz+ i spjmqd3.-vcn2-d. p the size 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 different numbers jt,m+vm/5 b)da9l*mcl. atndof neutrons are referred tobml 5/.n)t,vmc9aljm*a td d + 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 elementx.md vsjk04 h2 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 d78 svi mg*),+e z7mx ,o b/zfrde;cmtwefined 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-x f* jk32 8kugj,zizg mass of a stable nucleusz * j2k gfx8kizg3ju,- 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, ene9i t9xe:+kpe trgy 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 nuclfx7*igw 9;h z/ yf3b7 17bfgu8iwyuhneus 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 per j y5cn:nz *mvqs5tn4: 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 nucleon.bm8xf 0 y +duspqjez:q+-6 kx

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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 statemev/ j99 e5wem7ro9ntggnts concerning the nuclear 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, thbxiq/gwfa p (9cqp8 +,b/a:w re nuclear force between adjacent protons in a nuqqaa9gfw(wp/+p/i:rb , 8 c xbcleus 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 penetra0,, )v)nz/v kzkzhq ixte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrf6bt)bqtw2 ;ta67ylo8eh -ifate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrawh777ho;vf e6fr 3lwate

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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 zyxa5p(xc8 b,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 known as+d5j vif-r (ljd ij,p0

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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 beu.8yb5cmjc x j(sw y+1 attracted 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 a(zdh 0v q97 bgtyhjj8ra5(b /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 particlzbx4(elzn3o1cw *0td c/4o cee is emitted from an unstable nucleus, the atomic mass number of t014 x /elb(cdc*oo nce3z4z twhe 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 particlna 6;)wq wi.jpe is emitted from an unstable nucleus, the atomic number of the nj)q ww;n iap.6ucleus

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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 relu1:mel8k y *rpresents

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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 th/qmsv3x t4*rb4d; v g+vnw wp+e 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 from anfi e4jh8l. 1w42lb6qsdnf), ; xgpc.cr5klzh 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 m0* u g90 t,tpp6pr1gxuqydo4p ost 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 rjr;-j- (d8hcn c.f t plfi(5euadioactive decay, what value is conserved in addition to electric charge, energy, and momenjfrh8-c pel. (nuij; (fd5-t ctum?

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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 radioact d7(v,a lo8fr 5ts)dwg:y-sagt vh(p)tu w-3tive 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 em1;. kb+8yqybx6 z lrae*k0xppits a single beta particle when it decays. When this happens, the resultinglbpz0rq k.bx8yp;1 xe+a*ky6 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 particlesb uvx)9l(df n7p oeh; tgmp)(n3,qp5u 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 l mxc2g ,euseo*d+t72riquid 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 byf3q tc.bx+3f a l,(znu 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 how many protonoix : u+)sr/dt gj-bb)u/-io bsbjt)x )gdr+:s?

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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 ma *tl go/lwpw q6.r 24sw*ucgb/ cv6vktgr86/zss number of 14 and atomic number 6 has how many neutronswvtwb4l.*6rtclukv sg g/pog6 c/w*r8q /2z6 ?

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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 num4hl*w9fdeh op83:kk hber for calcium 39 are 20 and 39, respectively. How many nucleons are hp39k:84 feh wolkdh*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 cd v:(ev iiau(yy2g.e /alcium 39 are 20 and 39, respectively. How many ele.vi i:d a2u(( gyyev/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 nxv :*j0/f b ju84tb;bfq-4q cpwc- bfmass number for calcium 39 are 20 and 39, respectively. How many protons are inp;qx4bju: cnj-8/b t*bq 4fc f-0vbwf 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 v8q4 fbeht4z0 and 39, respectively. How many neutrons are inf4thqeb0z 8 4v 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, neutyvp (l c, uy+ lzv5w9y7v0slzn 01(glnrons, 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 t *69lsm3( gioxw mkv3hhere 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 15 has an isotob*x/n 2awt1 cjn)i6* f2 baypmyhr7p*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 ofy .19+uzr)bbccok hz . $^4He$.

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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 fsjkdf u cs/d,449t7y8l q2(hewax ld4 rom $^9Be$?

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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 ds41y2. iv1f abb2jt twb0bv mf,95qrthrough alpha decay. Its atomic number is nbvtyq 5ai s.v1 t 2jmw bf,10r2b4d9fbow

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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 nucleonmwzr t*)k, h6ks. If it undergoes alpha decay, what are the number of protons and neutrons, respectivelhk,r*z6k mwt )y, 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 nitrogen-14 nucleus by beta decay. How muchdr( ktw-nl/f 46sets6 energy (in MeV) is released if carbon-14 has a mass of sk( n-lt4w6 t/esfrd614.003242 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 undergo(m34x rbbuk an5i5ig7 q*ikk.es $b-$ 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 1kpwfmp2,xro0k2x ( ,a/ pt0qa00 year0mkak pw2 qf r2tp,p(a ,ox0x/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 an atom will decay this year if its half-li 5ri h xtbyi+ljpbr:n/)0z+.rfe is 247 year)ibtry/ bxpr .:5n +jrz0 i+hls?

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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 3rigq+ bf v9.dcertified 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 the sample ik wew0xt*c7a*8liht , s left afttl*thw ke70 ,* iwca8xer 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 many iodine 8)tc ty +r4j8tnthbz6 nuclei are necessary to produce an activ6tcyrzt8tjh)b +t84 nity 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 hazn9i co18t gpp.:8 dkv2-it:xj b6ddalf-life of 3.0 days has an initial activity of gvoi9p18: c2tjdx bpd k:n-.tiaz8d6 $0.24 \; Ci$. 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 wooden casket fr/xl3zd ib/x 8fdv -je(om an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amounti b(de//3lfdx 8 j-xvz 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 dy,y/ro m2dxh4l9 necv5l :q2$4.0 \times 10^{20} \; atoms$ 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 r3d y l )rrq-9pt/k 1 x5zkqcx9pjqi 6kqgx7)-$4.5 \; Ci$ 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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