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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 h1i7it o eo6esf9;8 eoe0aias:as the 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 .6u anumx5 k;bis

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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 od36gr*3mw nyza z-:l37xkqwm2 +k ntmf

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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 nu mt7b/7 nz(zj nb-f1atpxust6dm-*z 7mber 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 numbee )i+rqi0nvef)cs4/z f 0i:qu r 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 atomicr4cx rod;f+5 tk (ib;a mass by A, and its neutron numx;i4;ok cftra5rb( +dber 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 :w17 slgnx4bvtazd7 h1xa;t1mass number of the n dxazbaw1 h1:71t47s n vg;ltxucleus

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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 at hi7a8zh124redvmh0 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 the size of a stable nmyp f 7hbiq;n7),5:d 1 pxjmi3qtf9v uqmay (7ucleus 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 u2gz0m k;asi :dqg-r( b/l.l wwith different numbers of neutrons are referred ms;q 2dbu/ arigllw0zk:.(-gto 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 haveo1c)q7n/egxhd+ji - q j+4jwl 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 .3fh+bgu:zex wvd;+ x is 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 separate protons and neutl*+zc.rg zp il;1 jp(h0l:fbdrons, the total mass of a stablecgb1(d*lz 0.lf z+p;hi rjp :l 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 nucleunwu gvsl2.35 r7 0dztds, 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 contribut7.z i (znudo6fed 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 pe. ;z)nc(8+y *l v kp(dssrghxgr 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 nucleos-eoa ojb11*qiiq .)tn

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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 nucle 1z,(a spenog,ar 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 beqxt5el )9uwc /:alm9atween adjacent protons in5w:xa amqt9)c/e9ull 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 penetrmixd5srsq+qi pna777- c tz8v7x. )fsate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrarna)3ry- uv4yte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate aszu uwy4x6/3tm3k1c2zu 3 tc

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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 knownv .:yvriaz6p 5 3 dbwn yu-lk5:ud.pw8 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 know;k /4bd6(gy5wl s ( mcp6fbvctug4r,jn 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 attrace0opb2i4 d8rv ted 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 mai m9)k)v ut+,txgeg6 n ,4dbuwss 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 unstablc0vzgw-bc,91j3 ppf 5a -icib e nucleus, the atomic mass number of z,9v bpjc-gicb5c1 3 wi-pa0fthe 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 nucleehg.7(. tjr:9la xpx eus, the atomic number of th:(.p7 reh9 axt xle.jge 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 rsd o 8re6s vut)5ln/*mepresents

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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 thz:zwra/fc/*eadd bo7 6.p- z ce 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 nucleus b .g +qr7eabgz16oz23dwnqi 0,

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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 *,dtqe dm)f ..suji (d rk5e9zmass?

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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 conserved in addition: y,xi4bheonas12; yc gs5w9f to electric chae cob1:2n,yxi9y5awhs g;4f srge, 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 -l*dnn7 zucj (of a 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 nucleus khe 6 /gk y8y2+6wrftvemits a single beta parti6w28hv6 gtfkekry y/+cle 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 to cu )0u5;jwg; 5j xz1fcta96dmarm(ar oirve 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 usj:s(30 -gsvqls8lna ues 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 replaced by bubble chambers becan9p++8ow8) c c6vmf*w8yqr)p xlq hrruse

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomin:xhv u0+m7r4r f- wybc mass number of 14 and atomic number 6 has how many proton:n v4yhfrb-u+rx7 0 wms?

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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 *t11b4 iox5-pabf 3h / gckdfwmany neutrons?o5dpbchf 34- g 1/ 1xaibkt*fw

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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 forkavu2;fsp 5pvl0c;w . calcium 39 are 20 and 39, respectively. How many nucle;.0w a s;cfupvp5 kvl2ons 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 mas)ksj srdfd-(us4q9-ko nt06hs number for calcium 39 are 20 and 39, respectively. How many electrons areo9(4k t us) sh6rfs nqd-djk0- 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, rex8,b/9ae,1y0;o1eimspkvv o gt,cehb th46pspectively. How many protons are in one atomi6bbp ee0s 4g/ exay,h,ot;k chvvt1 9mo8,p1?

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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 andwx,4v;vy hgd0.y 9 wwf 39, respectively. How manxd wv;94wfv,hy g.w y0y 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, )p1vob qcn6 nfuw79, kneutrons, 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 carbohz mtl9/f50 .f4 ljyean-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 numbe w:x*qbprflief*r 9i)eco 6ysif8(9 / r 15 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 binding fy 0nrak/sk ,*ue 3lkuzqp0,4energy 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 prot q6 m(p1so- 2rnvrme ui(;zjy1on 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 alpha decay. Its atomic number ii(nk1)gf:5m g3rb cf yy26qbhk8q + guskcm 6r2k)i b( qyhgf+n35 81:q ygfbug now

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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. p pvhr. (kdlk7gj :72qIf it undergoes alpha decay, what are the nukv:p.j(gpd 7l2qhk 7 rmber 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 a nitrogen-14 nucleus by beta decay. How mup8o;1b 99 ipylq dwj0qch energy (in MeV) is released if carbon-14 has a mass of 14.0032j0p qp;dq oil1 99b8yw42 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 e4jmx;tw ,,j:, lj ipf6 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 m8zv:otp s 6-pzerx,3 caterial is 45 years, how much will be left after 100 years63:c s vpxt- pez8rzo,?

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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 hal jnak5i3/c*j rf-life is 247 yearsnk/ cj i53*jra?

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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 certifirdy-9y 9sg:yx ed 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 f5(y jjn ;iqyk(e2:berraction of the sample is l(: jr5e2;yyj ienb(qkeft 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. How manyn4qkaqsb,9 5c iodine nuclei are necessary to produce an 9c 5kqqasnb4, 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 substanqsg h 6 1ous 5fhewws-m +sfd*h87,zb7ce with a half-life of 3.0 days has an initial activity of sbsge+8f 7uhw-s,715s *h qodmf w6zh$0.24 \; Ci$. 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 dueexood,az ,85l to carbon-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 same amount of carbon from a piece of living wood produced 160 counts per minute. The half-life of carb5oax,o e,d8 zlon-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 tat)z o7dpq 3-dbke $4.0 \times 10^{20} \; atoms$ 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 l io4zq (,t9ob8s1 hiq$4.5 \; Ci$ 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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