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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 l 4uv) .oiexc sy fg,xbsdb72:8east 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 ipt5,4plpf :slou . 0l7meq1ov ,*clts s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consis hn7go-1c d4tt ;dq;3umujqr,ts 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 3 e 9d*b exp dsod0vj:ot03jn*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 hg) wbjmj c k0l(6yvt z8l215fis determined 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 number is given by Z, its 2xdo t)ht em5vqda(5-atomic mass by A, and its neutron ntda2tq()x vdo5 m-e 5humber 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 3r qq94etpqq; -j g esu7u4* gcs,2hchy 7va)jan unstable nucleus, the atomic mass number of the nuc;v c7q e74eq43shgsg9haju)qq2uty rpj,- *cleus

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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 a k2g8k0b 7pgbxxeo k-.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 a stabgd x4r9yc sc 9f35kgh8le 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 of neutronvhs vpnug(x28*7 xc 4bs are refers*vv( 4n2hpb8ux 7gxcred 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 nuclei witmvclwq t1rrat/;cf3m -n ,c ev3h2j20h

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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 isv1uvjt,h7 4kr 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 sepab)1 ni4wc (/w z3rzjzq.lz3u prate protons and neutrons, the total mass of a stable nucleu 134w (3j.lzq )i/zbzzrupwncs 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 ,ir8wkvp 3d*wnucleus, 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 nucleusx ;cq-rto3y;s 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 nucleon i *lb1wxpcc6dk0/ t;d zs

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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 isfojbh arh (r, n50;bafr7o6 ,:hrk/n

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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 sta(rzyz.(-a.fp )lts20 qmdv u d tb/wu:tements 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 fr zlua.)c4vk 8eje1. dorce, the nuclear force between adjacent protons in a nucleus i8jvldc .ze k a4)re1u.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 penetrap7cc*o0.llrf te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratezy2 ;g7is-l+or2bokw5 ;(ommqfa w z2wb(ng -

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrara1c3wz :kat1te

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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 kpj j9 hupmffn mg*)38yvzpd26;b f72e7vpno, nown 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 0m gabl *llb+/known 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 attracted to aek1,sgpybj/o 9+5epi

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha particles have - 2c/uq.mtj )if a 91q0cjaph ha(( xtbfn3ss+an 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 particle is emitted from an unsurg48uqg3v ruo:-s, jtable nucleus, the atomic mass number of guv4 go, uj:8r 3sruq-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,/ wdd5tgq ,fk50uhz+k the atomic number of thdh05d gq+wfkt/ 5 zk,ue 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 c y4-2/aaaino 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 nearmy562 yxrfa* yvf0k3tly 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 from an unsta .lus(:+l+ up8ctbigp-j ytu e2-rj,cble 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 v j,wtq5p*g. gmass?

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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 decayvt(p u xvmu l-*2k/uj:, what value is conserved in addition to elu u- vtv/px:* lmk(2ujectric 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-life of a radioactive substance as it denk)/9dqfrc:+r ygx p95.i zyfcays?

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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 oftenvek.)+ dtwp) ti8x xq+ used. This nucleus emits a single beta particle when it decays. When this happens, the resulwxv+ktix)d)tq8 e+. pting 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 meeelja u+d 3v;v;1;h 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 hydrogen islr uo;gy75s6 ocg.ux/ 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 beeu c6qu93/qmxcie)/ 5x v*+l o.nrbdrgn replaced 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 7ves8 npzip3fcf9+*w atomic number 6 has how many protonse v fi87cz*+9spwn 3fp?

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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 0 cm 4 wdhv:;ed.e+mfyand atomic number 6 has how many neutronvhdw0m;m d cef+ey:. 4s?

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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 cazyug4jg9bqn t6xx5z u/g 488ot)xgx . lcium 39 are 20 and 39, respectively. How many nucleons uxx n89bgy8ot ux)6 jx4zt g 4gg5zq/.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 and 39, respectd+8,d0 fr wx1z-vyjox wpi/i.ively. How many electrons are in ofdxwz.o w vj,ip 0r-+1y/8xd ine 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 ;7 zqwpyv6pckbmw+h*f9b46h and 39, respectively. How many protons are in one atom?;7v4h6m+w p y bcqhpfz6*9b kw

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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 39, respectively. v+cg7gmz 55hl How macz+5hg 7lvm5gny 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, neutr (y8 3tj q7u6umasnx8rons, 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 cb-h tacr5 )e6s:rvfblyqyu a2t 43v.,arbon-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 isoto(4r*l aga2k7 isqhy:qk 6z6kr 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 :k/kr 9nauq;;akaq g.,bvp4 dof $^4He$.

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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 rq( u z9fp8 epn3ali+b5equired to remove 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 g4ad t) v);v;el bvook,oh4+vcoes through alpha decay. Its atomic number is no,v l)o;aht4ev dcobv+)4o;k v w

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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. -i7mxg0w6f -m.dqnxmd k )/csbj89 vq If it undergoes alpha decay, what are the number of protfs9 wv) i7q- dkxgjq nx0m6 dbc8.mm-/ons and 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 nitrogen-14 nucleus by beta decay. Hziaft5f b ry-j6d c/rr3 hi:/)uj(i i6ow much energy (in MeV /ci3 d/f66a5 i-b) urh(fij jyr:zrit) is 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 numbeoigiw+8r2t z1 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 8( td*f2y fpmf5k8:jqn: m ddoleft after 100 years yfo5 kfdmdm8:f:p(nt*d82 jq ?

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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 probabilzj 7ugao0u z:+ity that an atom will decay this year if its half-life is 247 years? u+ga:z07uzjo

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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 certif 7vqri 1, okqqrq9)t0cied 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 )gkvjm9ycu.av byd330g3 5dc min. What fraction of the sample is left after 40bvmc kygcy5 .)a0jvgd9 33du3 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 dqw7cw yon8y j vs,-n7*ays. How many iodine nuclei are 8s 77nj yqv-ww c*,ynonecessary 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-lkm5b /uflg0)pr47 4-wh zvw bqife of 3.0 days has an initial activity of kbzq)r gw 7u 044vlbmpf5-w/ h$0.24 \; Ci$. 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 carbofj v5y .v5pzz44o3sd sn-14 measured 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 sames fvz sj zvd53yp45o.4 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 v4 f3/qt;s/f31hkhdpn-f jlj $4.0 \times 10^{20} \; atoms$ 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 tak , 9o;vo4 hs,xp2gugeje a $4.5 \; Ci$ 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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