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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 leavwod p, sxxl vf)7jz*,fc/)0tst 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 i+rbd (7u1ba. gt2dj ers

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consiq lkssd0i2gtt 96wd z0l:v z2c, iu,9dsts 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 determines-iae19 wji(n2e gb:(ce:z aad 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 determibw+1f*nks 6s,pnrp(wy-f s+gned 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, and its neutron *zzbib 7faa vrol,cu4/:*7 yxnumber by N, which of the following is czoxiyu7a7,lv*r c * /bbza :4forrect?

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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 masps5hn w1c 6re/s number of the w/n1cpse56r h 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 in an atom is 3*fnn4apr7 21naxyqm

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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 nuclk4u10b m k n0qp7ja)sxeus 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 differenx:w v;18hph gfu(vaoqm qb* : w)t9es2t numbers of neutrons are refe gqqbo:u)9hma t ( 2v8 hf;v:*1xwpeswrred 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 elementbd6nnv; rm52a74las t 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 i/s:1) hma mf y3sh6qcks 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 v-9rhynsc85f separate protons and neutrons, the total mass of a stable nucleus is a-c 9rv5hfnys8lways

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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,pxg4 .hfb/nd 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 nucleus is qort ;6*ni/hjcrdj/s(e+v;acontributed 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 nuclfs he1bc)*7 ll-6zv gjeon 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 nyoi7nstb1 dlk; tz(9h ze b*.:ucleon

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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 fals nqp(+tnhx/- le?

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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 nuclez-kjm0/ thjtjpw 6*c*ar force between adjacent protons in a nuclem06jp/w-*j tthc*jz kus 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 penetrd,4sn6ig 7nc*au fb9oate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrat4(*d6zudd+sa9gm n2tmcefvo6 zor/4 e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrati1(avfbuse /nxd 3vdk ,bnz ,6x. lz7q62bdz.e

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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 jpn9 u- kufp3d5e67erknown 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 rd/y.v d t0x,4tvmso4known 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 ae) u/w (kdnux1ttracted 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 mass equ61 g/yiryn0f/p-oxypal 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 unuj;c2d650 g tjhd m2tostable nucleus, the atomic mass number of 2jj2g dt6udo;tm5ch0 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 nuc v-r nw-y7i+v3 co29 :cwmjjkhleus, the atomic number of the 7jn w:v9wvyc-m+ -hk cj3rio2 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 - x4: ;v9 *2ggd .6skz b,ps9fwrqqvrti MY - Ma) 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 x6ufkx7+ xau6mfb gj1 lhol-48 (f1lothe 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 unstaazxl3d080 yqb3f sp 4sble 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 mosh7b 8e6fywtpzo qihfy9h8m7os + 4+i,t 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, )7io 4wb nqtc6what value is conserved in addition to electric charge, energy, an)t ob4 7c6qiwnd 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 suiw79dlh(.y7rob f;ya bstance 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 jtq knyby0.qyd c1-2 4dvrr71,wv-tgused. This nucleus emits a single beta particle when it decays. When this happens, the resulting nucleus isqy1-t 2,b dyqg. rv74-w ykvrcnj1d t0

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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 curvqz( xg un(l/4me 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 tha; ,wdtl )pzn2wb 4*extt uses 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 bec +zuokh ,*2jx ,s5jawvause

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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 mai r(. rluaf 2(vd 8j2bhysv0bkrad(74ss number of 14 and atomic number 6 has how many proton4yf8( k.(d(rbr ra0divl abj2hs uv 27s?

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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 fd8;uj w8gi r47rntd 8and atomic number 6 has how many neutrons?frd ; 8 gdwrjiun874t8

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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 39jl;f;qct+h gmnu 3w ne-ga;c +h(;q:h, respectively. How many nucleons are in one atuc m :heng+;qf; qhh; wtal3gn-j;c(+om?

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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, *,nxyj*uhz3s(zd-lb respectively. Hown*j-b xz dzl3*hu(y,s many electrons 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 c:,+6,e8kq pubnucm 3cg -v qkialcium 39 are 20 and 39, respectively. How many protons are incv ,nimg8-c3qubp+k6q u:e ,k 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 aix.sc vt. qknolb)yy (w/ 4-9 jbno)/calcium 39 are 20 and 39, respectively. How many neutrons are ina9)-nov //x.jw)lky otqi4b(c byn .s 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 numbsl+3wwa9m 5ccer 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+a9p g ;vzjuo* 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 is9 jkn bpv;d4a7otope 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 ene k-/(spf/1idy(s4opmr i+tbteb9x9urgy 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 ir, 4( /e)p6msu eh7q 0(bca(lhtlfks 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 gh3o+fi b) h6tuoes through alpha decay. Its atomic number is )biuoh 6 3tf+hnow

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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 und;s a*q5f:jgd yergoes alpha decay, what are the ;5af qj*s:gdy number 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. Ho.yo (1, p)ky*oyo+lp c4apgvo8b9jdp w much energy (in MeV) is r p8l bj*y,.a+1oyg p) kvo ydo9p(pc4oeleased 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 atomkx zszhe l-u1hbr ee(:v lase90)/s94ic 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 lenqu0rie3jib62f k 1)eft after 100 yearsr)1kei3 2 fij e0q6ubn?

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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 ay9uvfa qob+7 3tur./wtom will decay this year if its half-life is 24/ rvf93t.qwuu ba+ o7y7 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 certified g ncq3qoyr0 *, (mc5mxat $10 \; \mu Ci$ 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 mf)gw:+b3crq uin. What fraction of the sample is left aft: bqf+cgr wu3)er 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 radioacti /q e2oo4n1.2b cwv4/kbvuo yove iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity of2cbbuowe y//o vvk4oq2.n4o 1 $1.0 \; \mu Ci$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive substaf3sc6rw0 m e/snqn1d q0g5bjith 4;4fnce with a half-life of 3.0 days has an initial activity of d f;5mrh44 gqc60 ibj3sfn1 t0wq/sn e$0.24 \; Ci$. 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 in a piece of acs -tzx/9 ;:fty;gbe 0v23qv7 r tt 1goxgk-rw wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas th q fe7vbxt-rsrw:; gtg 9 txt201;kc-ozv/g 3ye 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 takeef js(nvfs)qh43 togs d0x.12 $4.0 \times 10^{20} \; atoms$ 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 takpwbs mkr:+n3 h5s;e:p :l 1 ,d,almfzqe 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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