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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 part;5rh)o7u+b31gd l/xb: e/wei g u rismicles has 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 i o)*3xbpmd7nts

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conh v j4 i1/hc/gpv*c5,b37rfuhp6e (vcpma si2sists 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 o8,cdo j g-1pwl bkwh8./xm; auf

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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 fp(;v 6bn h7kgf6c;s:2fw dq bdetermined 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 g / p,mord13 4n;kkr.ng9rf8 aboimr4eiven by Z, its atomic mass by A, and its neutron number bmnk,a g3im/db4 on r.kr18pfo 4r;er9y 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 number,/ f8aq3trlc cv qb15j.v0 d:fqrc5 se of the nuclevrrcfe0lbds .5qv5f t,/1: 8j3a cqcqus

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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 i 0g9);u/vfu+awhessd0e g q+in an 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 of a stable nuhch0*l3emkg hb wvgm34cx+-cj7z( 9 ucleus 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 numbersi u c c9y u964bxw2dmj)+fpw)wzl78ep of neutrons are referred to a) fx9zb y+c8c w9pie)umdw2 w47 pju6ls

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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 cche li 0g,ko 7rn9z;6nuclei 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 ur rt 9h /*j3os49baxem3v;eo 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 massesz3ty wv;cofh,p g,6m7 of its separate protons and neutrons, the total mass of a stable nucleu,y 7p6mth f ;z3vg,wcos 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 fortbuc30: acj2db m 1wtg7 cd+3rm 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 controc-1m j 7rxlpab161zfibuted 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 nucleon iskj;g0y(ia2p37 sx oc:9f9soidxobl 9

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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 nuclew i2w1 vf/j jwf9;8lpxjdc+ r/on

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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 conk1ryz; n djk/w(nql/3 6mcy(dcerning 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 forcefaowd :.97;fbnc2 zopa. wt-mne8; ep0nos3 x, the nuclear force between adjacent protons in a nu 2eb;nwmox of sz:pct70. 8on-aap .dewf ;n39cleus 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 penetratn)9tb fz+9 t0.(b4d p mwtbcnwe

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra.*a *x :jp4p tihxmg p61pmf9lte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrwn+; -zkb sujo05 s4m4djfm w)ate

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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 known a2 oqlq 4hk8br5enq5 1cs

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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 knoy hb879a66daqq rbr z5wn 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 ase0 4m2y yakr/;/)r hz.qp ux2ler0gattracted 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 avpdi,h6j47jfx 6zdjb1b .4 sfn 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 unstablet qsk /2qbw8l8 nucleus, the atomic mass number of the nk 8ws28tqqb/lucleus

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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 atomic numvlz4g ) gow rj0( /2t5os; r0pwm2clcpber ofovsgllgr o0 jwc(wt20)2z; 45 p/ crmp the 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) s12 h vo/oqvn)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 mhi1r k.gsxnkd:1b5 )gost 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 5k)gn 88q0eyg tzbpd7ku:3 cy 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 the mosp;c an:lorwn5rny-,19asna 1t 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 conserved in amz (ty-r d3+nti5f*j gddition to electric charge, energy, and z5g3 *ftdty+(mij- rn 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 substance as b8s/fsw ;d5iyit 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 emits a si2oad,i m ewq:u r3x8k*ngle beta particle when it decays. Wa8dr2uoe : ,w qi3km*xhen 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 magnv r)fb7 )*ajdmetic 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 uses liquid hydrogen is kw2j2u()b;g +rgv syia

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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 bubi/fwxbn 1qm h :jt8m:,ble 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 xhx7 cua+*8igkl g *r*atomic number 6 has how many protonsrgkxc *a8uixh**+ 7 gl?

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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 mo *a/ k8 +xdps6mj :/jdqh8vkdany neutron p d8h//: 6xoj+d8ksqadmkv j*s?

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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 cnku,2gxu 7 t:r mds7hno)* h;lalcium 39 are 20 and 39, respectively. How many nucleons are in one atn:n,7 )rg;hut27 *xulomkd shom?

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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, respectiv v q.rfmo4c-,tve p sxm3ju /z3,n6n3vely. How many electrons are in o 3,,nz.o4t -/c3qmunv sm6 e3vrjxfpvne 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 maqgjqcz+3 y6ge11 kn0nv8;d+knb t 7kuxm mc-2ss number for calcium 39 are 20 and 39, respectively. How many protons are in 0 e1ckqcyuqk38g d +xz-;+n2j6mvntk n1bgm7 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 calcium 39 are 20 and 39, respectiv4y yb2,; g d94 bmtyn bhpfne9r.i).qsely. How many neutron;,. i4qg byftb24er .9 9b hnm)ydypsns 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, neutrons, and electrons is 6phniy y ;l1oz:1*+a+vo rymc hvo3*l 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 car 0v*ud6 mu.jv7.i93 gdfkwr udbon-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 ob fkhaq)9 oy:d*-2jsl ax+w809 fuejjf 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 ejb(qsh qoi.mo8ygr(e.//+ scnergy 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 removec tfyjie;gfhoz x 05/p(;c6* v 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 decay. ,n)7nwiu fa0e r;1 mcx Its atomic number is nmr)170f;i nwncxea u,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*h0aodjc7w jm 6 9sbn5 jimn7;. If it undergoes alpha decay, what are the number of protons and ne;h7dm9 5mc wi*asjjo nb7jn06utrons, 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 much enerm md4 q4hk isv1 .m2qze)(ggkz52w,;h l nu;tugy (in MeV) is released if carbon- 5hqmk4 zmi,wh1.d ;kt4gl2zq uug enm)v2(s;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 atomic number 6 und:nosii0 * 6you/lj c)vergoes $b-$ 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 m. 56gz8vnjqu22 hrzrsuch will be left after 100 year2 v6zh .j8nqusrrg2z5s?

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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 probabilxlqy1+ 6-fki6z 4a fc:larp y+ity that an atom will decay this year if its half-life is 24aa-4 l6ciky+fl :fy6xpqz r1+ 7 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 cer vh3s /w7e+qm4o+ljiztified 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 *yy)ylckln8+;tfypuz 5za 6h n z5)p0half-life of 10 min. What fraction of the sample is left aftcy56 *zn5n8 z+yf tul ;pl) )yp0hyzkaer 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 8.0uiwg).,hwo d3t +j jik7o0*ox 9nds-l .cqn( e days. How many iodine nuclei are necessqdn xclhd-+oiguk 0)on .j t9*. j(o i3,ew7wsary to produce 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 initiawbnis6oq y/8*l activity of i oy8nq/ s*b6w$0.24 \; Ci$. 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 umdrh n8g nlej -97v .)a)*vyh)qef8d 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 sampl.*vad)h9)-e h g8n7flydjne) rvm qu8e, 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 takx5 gdcwmc:/y:u 1dl7xe $4.0 \times 10^{20} \; atoms$ 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 w*oh; :3krzlbew/kv: $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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