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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 the least masdl0ch n.7ipos6 a+i /ps?

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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 is8hi8f cy6mw8p(o pl 5n

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consqg*ja6yu 7ekldxu x/7rw ,2vt-wre v5l 00m s9ists 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 by the number3nilh7zm*vc6f f c1 i: 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 det/uew2af 0eb +mermined 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 atomic mass by A,xp9a:zohi s-0(wb9rq, qfmr 7 and its neutron no:irqwhzpf 9sq(m-a9, br0 7 xumber 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 an unstable nucleus, tx 1isxh*+wld93 uwve8r*w sv -he atomic mass number of the nuxwd8w w-s*3+vrs9 1vhel*xi ucleus

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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 me7x ;dsa4obht9 +fd0nw gh;6an 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 s ae9rt0k6k5iztljf 1(g e9oc4ze j hy56xp8n+ize 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 diff(udjot. *v5mjx8a +wgerent numbers of neutrons are referr 85tvxag.wdo+m(uj*jed 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 hav u)jb9mm4px rke23q 1je 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 define:dt ku0oz94jf ..suwpd 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 sep.k9ak2b5 u.)du ik6o5tp v m4:vptvebarate protons and neutrons, the total mass of a stable nucleus is a9u p v2:)4o .pkui ekmtkvtvb5a6bd5.lways

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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 nuct p4l 3th;)tmq531wp2 nnlk yrleus, 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 contributeuzs-b mmblu2 )3;qb6g d 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 nucle-ft8 yv0k n92 sy,merqon 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 n ,1u u+)jfyzqf)9hfxw2 acfo5ucleon

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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 falseck*ed3-o. ck;b 2srut ?

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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 fo)fy1;w tgh+rwrce between adjacent protons ifryght)+w ; 1wn a nucleus 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 penet(s 8;hiat8rpb rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr7 ke pwekb4gg /)wg.u3,w6hilate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratalwg/ 8n mk6x rg)0a1)mejtl6e

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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 knmxq8jg mh+iy9+4ez a - )wquir/4uoi +own 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 hmv 4jf8 kzlk:ztp 2fl9g2(x.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 pg y 5:,y kpqz pik 5:r;*(lsw(4nwow /:xzedhbe 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 atomic mas m0c3u) m q f5f ;.v4wa.zcf(yk*volofs 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 unstable nucleus, the atomibl200 zy -afnnc mass number of the nuyl 02 af-zn0bncleus

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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 atomign wk(8pp- 3slqm+zs7 c number of tm n k3p-+zqg(ss8pwl7he 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 - onkjf:u.;kch)o +m4u 1s(awnMa) 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 near- (,nqx5r p;(mpwh t9t ol7f(7w ihwrmly 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 emitte jnmjflu:* *0h2.jl mud 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 th4b up3( t4nz1nq ,zwzfc 8kp6ae most 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 conserv:6lq 9c1.i+*mbqn lwv yzhy( zed in addition to electric charge, energy, and momen. 16l+:v9zmln*cy qqz(iy h bwtum?

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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 iyk3p yxy5hfqnt q8un73n+ 4c/t 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, carboak.i q1 gzs1 x8.(omah1/dg ppn-14 is often used. This nucleus emits a single beta particle when it decays.8 /1ago.i1kxma . phqspz(1dg 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 that uses ar ;p8j0vdxr oge3e3)u 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 useso;;r y-4lxeyq 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 wq0t62tr,jcwhn p- 4oed 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 atomd wa72j;wzqcj5f5ed 4ic mass number of 14 and atomic number 6 has how many protonsqzec4; d5dw f2w 57jaj?

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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 vb.n2 8ahj b ujx.,m;yneutron2.,vyx jhm8 bb .;aunjs?

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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 39, q9 k l:*xo)ajhrespectively. How mx9j:ko )l ah*qany nucleons 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 areowlsvm1y9wn :cf3 5t : 20 and 39, respectively. How many electrons are in one aton:mc fol1v3:sww 5yt9m?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number annc; 9tru/h 5+4:9f u wdntdztsd mass number for calcium 39 are 20 and 39, respectively. How many protons are in on dtrzt n4 cwnh d+s:u9t9;u5f/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 39, res 6v k11jyapr.wb.ps.m pectively. How many neutrons are in one atom?s.vyj1 .. 6prbwa1km p

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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, and ele nwdupi sb905ll:*sr ngychb: gj;* 11ctrons 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/n gnttk9 +)li y0b0,exd dk*o 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 15 has an isotope of mass numbeo( gcmh3n7/ .k/hxzci r 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 a dj216j:qjx/g gq6hd energy of $^4He$.

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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 cp7jea25t m3f 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 vv .,azm. k2uqzmww0 2j jh;e(alpha decay. Its atomic number is n(jvzh e2 z.m0.wvukqm;w 2ja, ow

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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. I0b -6pvna3(j(uo5 / amb zspnef it undergoes alpha decay, what are the number of protons and neutrons, respectively, in3ap( u 0nj-p6sm5n v/ebaoz(b 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 nuclezcnq( j;o0 r4yus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.00onz0r4qjc y(; 3242 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 undergori6dcky1 f 26ges $b-$ 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 materiqu*0pa(;e+*snmvyrg + 5b ivjal is 45 years, how much will be left after 100 years?r(* 5v+ *;vsq0j+e p baiyugnm

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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 thv,.p:nb-kp ktis year if its half-life is 24-n t, :.vkbkpp7 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 certi di, keezo8,/q l6.tnr uyc+g7fied 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 thej(hz6v eh w; o)sbs8s, sample is left after 40 min?(6wsbhvhs;os ),8 jze

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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 nucleiqw:l:i r2g - w*i uv8qsjp02eo are necessary to produce an activity20sq8* l e:wqirp:- ovug ijw2 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 hragu2 tjvt.o6 b6m*3 3.0 days has an initial activity of 6 thb* t 3rgvau6ojm2.$0.24 \; Ci$. 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 measured6, ruyixagf0 c+6 dcn) 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 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 aa6ngir+,dfy c 6x u0c)bout

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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 ucgf. +/*kbfgfhy s7. $4.0 \times 10^{20} \; atoms$ 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 6a1 +(ittwcgll qzt 2/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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