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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 least6wjnrp;dqi2elwsi)y 5 +8esuc,b4 :y 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 isyiy9ur b: e-;p

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conr;pry v(jw iu0vw* w qo86,p:rsists 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 thtx3s9di8gb)/kr91vs d ww:9kt ts6b d e 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 numbe lk jm v*pn9fn8742*fjej8a7 lt i6xzvr 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, and i,wk;g.spt5 -qk bf1 wwts neutron numbe; b5pgts-k 1k,wqw.f wr 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, the atomic mass numberyg.j87 k roob68(wxtg of the nucj 7o(kgxy.8gr w68btoleus

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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 y xf1gfd(48coll)t(kdg xqs65i z x 78atom 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 th(z6fxf 8q4mec v8c f3xe 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 numbe wghjg;ty i0:afl9wb.d 68 z;cr but with different numbers of neutrons are referred to ag.bwi;fl;8a 6 zydw9:0 hjgcts

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an elemen 0n2rdw kep)4rwydn,;ui (qq cl4)qpm+h95wbt 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 deficp2 2 bg0-kluined 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 stj8q5uq(jsxw.z *yk;2lmo -v o77 euzeparate protons and neutrons, the total mass of a sto . xzl8*tyu ;5ezvjsoj7wu (kq7m-2qable 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 fou (xhc1/n.5 nvyay d;mi zv:b*rm a stable nucleus, 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 nucle jko*y2gsnqe-c51e1eus 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 nucle3gmtai.p8 0 sozwv :bj-t/d( .f gm(uron 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 nuc2mfr q8e2 5(xwgeosd rb-7 *2km1byusleon

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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 st+ :0ds jop 2fxbgia3 ,zytw83katements 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 +4ohw 3kb)b:.r rfgqvforce between adjacent protons in a nq okbf 4grvb3r.hw :)+ucleus 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.0mhil f 9 x 8gqy8p,zh*ms7 zt;hpj5u

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrama21wiqb bbd:4.c it5te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra 3a 8i 7yjvix:-nsfl-ute

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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 know b3r, blrs(k3an 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 knoa6wh6r;yf- yuii2 yo8wn 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 3st*p c /dqyl: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 (31h;anexjtc9 yjo+f(. gk sc 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 unsta)bh 3a nb8+m uyp3.ekjwqp*l.ble nucleus, the atomic mass number of ) paluwb p8jq3m.3h.keb+ * ynthe 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, the a sisysojzyt ;)59x,:ftomic number of the n;jostxfys) 9,zi :y5s ucleus

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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)b i rae,( 9zf2-j9 g3(m0sw1pylhopuuxq58 m j 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 nearly the same as a gamma /+*olf- mwv :-:jytnnm h.tti 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 em-tewqyl8jw( tyu(lz1 *e ,x6fitted 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 thek cpg0z6r/ 6cm 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 g;yjf-)10j e tqzvty4conserved in addition to electricy4 f g1j;0yvqj-ett)z 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 rk(1zsvmq-euf+r n4 n: adioactive 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 mk gea(kd*ycd2f7 24i nucleus emits a single beta partic*iyfk 24k a7(ded2cmgle 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 that uses a magnetic field tdj;tozh +jng)yxtfp8: 65w*yo 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 hydrogen i-7yjz*4yujp ad*x 1mls 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 replace: ltkdanxx di8tt0 y/4x).w;lx.-x,qifh: cg d 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 atomic number 6 has howqm(igzvbi 8gh .pl:2/ many protonszvi gmhg(:. 8/qbpil 2?

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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 numif 0rg24 wxvh 1f2j hp:9o3jdwber 6 has how many neutrofwxhid 4gv jfo1wr0 3 2p:jh92ns?

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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 number3 +w8ove+pw4 y ;xwb;yxqqcg; for calcium 39 are 20 and 39, respectively. How many nucleons areyg;;b wqyxwwc+8p q;3 +x4eo v 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 39y s 0)ii(w,iph, respectively. How many electrons are in oiip w,(ih0)ys ne 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 ande;/pg2t4ll hb/beo .8 t-id ka)3pzxp mass number for calcium 39 are 20 and 39, respectively. How many protd-l.34zkeib b 8lht2)//pp goapt;xe ons 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 calcubd+3 o mdi4 jzfrg)fz- 08*upium 39 are 20 and 39, respectively. How many neutrons are in onzf*)gdu j- oir3+ 4 bdu08mzfpe 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, neutrons, and electro/r g/n*yd t7iuns 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 nucleus?o4 iat4pzd 5x-gt9w /wtuy i8.

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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 nu4a:h:yjdxfmz8e-me8 )lnz0 qr:0g 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 bindinj)uv. cs)wy- tg 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 remo .qe nj5aswb+uhgzpe)93v0h 4ve 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 throughy:7 zjfo(yio*czi+h 5 alpha decay. Its atomic number is noy *oh+ji z5y7io:fz (cw

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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 24)wk h/d- f3muo9 nucleons. If it undergoes alpha decay, what are the number of protons and ne k/ohwfdm)3- uutrons, 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 numk 4um5- lf )zq/fa6u n8vp5ilze:8pd cleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.0alziu -v5mfp)4pklqmz 6 uf:/n8de5803242 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 atomwc:7j pe92rwmg / dhz0ic number 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 afzhn5.+ f,ux 0cr/:b wdd7(pnb:rl hkm ter 100 yearp/0lwfk mrbzbc+ndxhd5:( 7 :n,urh. 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 probabilitapk; l 4mi/a7c;pti3py that an atom will decay this year if its half-life is 247 /t;mikaca7pp p34li;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 certified7m 2y.n spw.zae)g5fv-ruh *o 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 as8jt2:-uzx *8ta tf8yb tbx. n half-life of 10 min. What fraction of the sample is left bz x8u b-*.8atsjt2xt:tf8ynafter 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 ioamw: ie80-jg rhcn ,7odine nuclei are necessary to pc- m7:arwj8oeh n0,i groduce 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 has an initial activity of qj88+)eu ixowol /ur-:1hcnu jn)o :- +8qioue/ 81hxcuuwrl $0.24 \; Ci$. 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 ca7 ye7 amr/6vok;uelp )rbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from ya ue7/ 6)7klrovpe;ma 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 ta 3 7gd:xjesf)hke $4.0 \times 10^{20} \; atoms$ 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 takelc 1,2wiz tq0e 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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