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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 has the1fs7.7r/ uppfa1 zt8p ddop6v 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 isj:uzfs )zgs/8r 6iuq0ywh q89

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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 os8 vf3 d*xzyz 0wc(l5hf

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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 det ng,--ae5qg zsermined 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 number 9gows 7 :hcso y07md5uof

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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 atomic mass by A, and its ne.zvwch (k5vttra,:w d6z7m(a utron number by N,zh t6ava .rmk(:(5 7 ,wczwvtd 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 nucca6jl,fbb /oxfwn hzl5p536y bn,b2 /leus, the atomic mass number of the njp/6ln26z3lofwhb ,b 5f 5yabx cb,/ 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 ho+)g nt9 q4d vjkuliuryx.:vs b fi:s-998(din an 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 stable nuclej83am)wgsy9 q ak q95x j(l3v;movriz 330psqus 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 numb13c . levg6ew3lxv 8nfa4hwy )ers of neutrons are referxgeve 6 )aw l833y 1hflwnvc.4red 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 ha,dvzhn z*jqzipe, q7).rnaw( yv92v3ve 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 asfbuoui5z 10t9s*j 2vp

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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 protonse:zhn/l 7wez9 and neutrons, the total mass of a ste97nw ze: /hzlable 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 nuclehwc*-uf d35h fus, 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 contributedlaqvyh-sh :u4dn9 3a: 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 yovc2b ue50d) 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 nuclehzt9bq8o ,j* don

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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 nlqtf w.ht+0: 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, the nuclear force betwevstz9zx c9+(jm8+ujjen adjacent protons in a nucleus 9+zxu v(j 9tmc+j8zjsis

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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()axxi5y)pn tte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratext ;o01aw h.fv

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetqvqb6 1 k:6iwlrate

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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 kfgdb/a *x,br 7nf/3ojnown 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 kn50f jevqfa9m* own 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 nscrt)hu9y vho(s+0w/ j qkaz/,jy72a

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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 equaiubpu,) ;bmy h c8m32d3g;kxo5w 3new l 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 atomic mass n7 kdm:qxw,*uy umber of the nu x,k m:ydwuq7*cleus

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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 numbmgmx 7ur8v69ter of th8m rm67g9v tuxe 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 931.5 rqh6s.r)b pxg( epresents

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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 isza3hm hm bni;zix6; 1* most nearly 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 unstable u+6ww t *s kxtc9csqlg+3om f):,gz2pnucleus,

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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 massdpvs r)7 (utc+?

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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 ra;x p9 egi*xgu2,z)zimdioactive decay, what value is conserved in addition to electric charge, energy, and mogi;ez*pxmg, z 9 x2i)umentum?

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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 rbd s.l. mj9+o2u ,bina 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 nhl ,1z4tqjhr+ucleus emits a single beta1,+ z4jhr qhlt particle when it decays. When this happens, 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 thorf b434l.r qwat uses a magnetic 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 u7h-m/ma,xqol c . sq/gses 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 replac/rrk ) 5 wrwdiwm/8vb)ed 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 s29kxbaj oryy4a4 +x(qsug:3s a7tl214 and atomic number 6 has how many protons?ya: ybxs23suxjq+o4 r tsag74(29lka

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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 o0/(g jtbbc32 xuu;lwt f 14 and atomic number 6 has how many neutrobbgcuwx 0tu/j;2l(3t ns?

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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 anda v fin+cdu:5gur(u :7s8 q.qc 39, respectively. How many nucleons are in one atomiadug qn:fc.:8u( 57urvqc+ s?

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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)yqi:4o cg-oo0 and 39, respectively. How many electoo :qi4c gyo-)rons 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, respectivelynk1 jgvt7 mo/4kjzvtuix: i9 23f6gv9 . How many proton61x3tikjuz9jvv/79: fn vog 4g2i kmt s 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 forf ojre5 q68nzi7q:,v .qojs9 c calcium 39 are 20 and 39, respectively. How many o7 e. rq 58cfzvjj sqq9,i6no: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, t9g9 m:*lvxac vhe number 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 carbon-14 nucleus1n;qlpfn: x i/wg ve-tbj95 jn:8of o8?

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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 isotope of mass nuibwuzex.dx qxp h ajx) ;.tk*q 447ii ))td5(lmber 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 6i7uf kd5wr -src4f8e fbm. g5of $^4He$.

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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 r4a h 2u0e0w mtqbgl1z4equired 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 goes through alu w a:8h1bkt(dpha decay. Its atomic number is no1b: a8ud(h twkw

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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 unde/7mq5;spsy fxrgoes alpha decay, what are the numm7/s q;s yxpf5ber of protons 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; 6*jbd kos9qsep.(l1 zhrck 7 a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbonr*p.;ksec1s67ohkdj q 9z b(l-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 nuohizkxlnjs7nw + 7wap)(5 h:7mber 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 m2x fe-q6whttj(-rcfbp)19 pl bej) 8laterial is 45 years, how much will be left after 100 yearr - h2fb9jft )telc-( lw1)qxbp8p 6jes?

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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-lsbc:2 9 ,c+zvw bzcmpr028kf hife is 24b:,fzhrccm ps 8c02k2v +wbz97 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 certife-l p(8p2wr quied 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 fractigjy: l5vkjx34on of the sample is leftg : 4jv5j3xykl 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. dsq,,xj5i9yb cz)4 gv How many iodine nuclei are necessary to producegxyi vjs,45cbd)z9,q 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-lifebz+h.t 7us, -j9gdyqg of 3.0 days has an initial activity of g z9u t-hqsd7gjy ,.b+$0.24 \; Ci$. 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 - onb 7hiy: mlbwpr:cb1,gc.y-ob4l1in a piece of a wooden casket from an anciei 1 n ,bp b:rgybwh:y--.1c7b4lmlo ocnt 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 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 takjk7 prsg/ ,12jmy zf 4g/kio1aacjw 02e $4.0 \times 10^{20} \; atoms$ 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 3u46 poam,nl5:ggldtzbs; gu r 4f0b2$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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