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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 ha+er2y3u.z g6 aqjf6fus 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 is5dbhe;ax mt1jv du16i 4-jxe(

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleuseozq72ai)k297suri w consists 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 number otxo tjdf/62v93l c;j a,+fjnqv9fo/pf

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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.n fq7srt+co26ef6kv 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 give/b0wax19vgo3 go- z qu 6xlhp.n by Z, its atomic mass by A, and its neutron number by N, which of the followx0.- 1qwpz 6aux vg3gh9lb/ooing 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 k gcfp3k4nto/mez .4)2n,bt snumber of the gzntk44n ,3ob)k/f2 t c.msp enucleus

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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 9y vrct3 du2u uxgg,,xy24(xsod83an 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 6 : ;zxlhnc9g6ygqnh -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 different numbers g+3wxt sv7n32c euyn1g 6ss 8oof neutrons are referred to 3vs3tn8yc1 2use+g 7sgo6wxnas

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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 have nuclejt wy-* 0c)rvei 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 defgcy.mzub;- vl q5z4gc -a95ftined 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 prot3 c2x-t sju;rlons and neutrons, the total mass of a stable nuclt2ul s jxc;3r-eus 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 nucleus, energ8sx en/;+diyjv 9l9 ozy 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 contribun5 e q5oc-p1zbted 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 nucleo,j.rxyp (kxe:+3pcv7 k6j ou sn 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 nupab svyj0x(o5g 0 x98qcleon

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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;hz*j4p +09bt bq vqrse?

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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 forc- 5lix)c8 rkky/sa f9ze, the nuclear force between adjacent protons in a n l5ks a-cyir/ fzxk98)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 penete7sz/cqhh,ooz5ma : (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 penetrai jd4tm9 r0 itvf(qi3*te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra0 ;-ok1m y lsfsrnpub2cv(ge8,h8 9rdf 1ze 1yte

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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 knool+ djxz yc- 5/c1pci9wn 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 kl.bybadt0 c;,wt ;g6jzn 2 ek8u o/y.qnown 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 tog5 skg +s 48pqm+wp- y :s7wjtpd0qt8k 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 qidccs uy/v:ri.1lgm72v *a, 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 l;li,grx.n4 bmo k qbsv4a) *viv(++inucleus, the atomic mass number oab4+ ,(i l*okgvi;.)4 svnqvm+i bx rlf 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 nucleus, the ch yh9x-qr+ uleo-lok08,8l 9eo tl:vatomic number of tl,8 o klqlee9t-+-x 9vc0 :yoo hurl8hhe 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 9l ee1nmt(z;rt*wbnm8d4cb .v i: ea6+31.5 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 mokjk/ who*g7e91kh x+ekh sx 4*(ctj k6st 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 )z*ostujm+r1bj:+unhu 1a w 7nucleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has thr -k;zxg rors1fx 4n)2e 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 ofpo6; wnul9 t)vuwll36; tw q)9ebgx v) radioactive decay, what value is conserved in addition to electric charge, energy, and momentum?utg nl6v;qeop 9ulb)lw)9)x 3w; tvw6

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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 su3jv( v19bmjbsbstance 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+l*sai8fdn 3mw89r m c, carbon-14 is often used. This nucleus emits a single beta particle whan3i*m88ld sc+9 mrwfen 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 curve charh y5ul9fx 6f.bged 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 thatqm)w lwv4u( -x 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 buu 2iu 4v bx8wei,ovr61bble 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 massilf t(v )7qxumdd9 63py, ju7t number of 14 and atomic number 6 has how many protonsuym v3 7p(ldjfqu tt )9x,6d7i?

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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 neusfmj,9um*qw v eg0m.7trons.weg07f9 u q ,vmmm*sj?

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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, rw gvab(6;mv 3despectively. How many nucleons are in one ato3d w(gv6vb ;mam?

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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 /gn+m ki9x+ec;lix7.7x,q izxu//g kru)xol39 are 20 and 39, respectively. How many electrons are in one arq./kxxl e ok)n x c7/x+i/g,9ii xlguzmu;+7 tom?

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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 calciumj -e:;fb:nmf b0rc(zx 39 are 20 and 39, respectively. How many protons are in one atofbjncx ;0 mfz(-r:b: em?

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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 -0gs v n2n-rpv3ty:su 39 are 20 and 39, respectively. How many neutrotv2 -v-ssrg0 y:un3pnns 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, neutronw, yri5xzbx3,:ff o m1s, 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 nucleu zthuoo-fj (9*s?

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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 nwz7avt(u a n-mj b-s*6umber 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 energy of o(0bpek7*lryovjo15e) gne+$^4He$.

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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 br 6 lry8nka1tq,)-r cremove 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 alpha decp-f mk.t/ *aqta hym/.ay. Its atomic number is nthfmya.p/ .-taq *k/mow

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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 undergoes a qvp*,ua nqk282+(z dn*i:aqs ikt-w olpha decay, what are the number of protons and neutrons, respectively, in the d-*a+22qp:k na,io(ztvw8isq u nkqd*aughter 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 bl5( p3o ayou k q2 hcxa9h.kom;20e4tpeta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has au. qaxe(optam2 p 32oc0k; 549lo hkyh 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 undbtgkp p5g7*i.r7gd1a ergoes $b-$ 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 afo:l(s,l8*snteqn; pg -,vst 3mex lm8ter 100 yearss,n t*oql,:x;n mml(tp 8vsg- lese8 3?

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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 hale15asuvc.0i 7 q x*kugf-life is 247 yesu vux1gk*a0c7qi 5.ears?

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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 certifijps0119+hsxe+a znrmfw hz):3 mu d q*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 hco1 fm-b epg-5xq73wqz*cm.lw72 lhlas a half-life of 10 min. What fraction of the sample is left after 43 1 lm f75xwcgq.*lp-7qbmhl oc2ewz-0 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 iodifi0uh wp+n(5vjupnpb )( io3c0,j6w( 2c rrt dne-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity ou(nt(b0dfiwpv rw ih2o) j0np,(+j5 u 3p6 ccrf $1.0 \; \mu Ci$?

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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 i( gg34/wh 2px2jee+ jcyjham(nitial activity of e( hg+j2weapmj/4 g3x ychj2($0.24 \; Ci$. 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-14hbo21lm3xxcf y,l3 f 4 measured in a piece of a wooden casket from an ancient burial site was found to pcxo b xl23y1f 3hmf,l4roduce 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 taz 1q9qhxt. *5vqlg)2:dp jzxb/ i eci0ke $4.0 \times 10^{20} \; atoms$ 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 tak mrhf5 o5rga1-aih8+m j( lyu2e 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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总分:71分 及格:42.6分 时间:不限时
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