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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 particlesba9l7uyqce8;t ,y k+) vg: hqu 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 ika9j j;lgrapu8y2,81/nzoas

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleusubz,slvc4 j+z 0wk28x 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 xq/g8oifz- h a 69g1wwby 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 determined by ther1xu8m l*g+ zzy+ wc8p 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,lt- m/:xid-zj; x imf7z urxz;jj34d7 its atomic mass by A, and its neutron number by N, which of the following isx4xr: l7ixd iu3;/m mtdzz jj--j;7fz 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 v ldf:f)y5nq 4mass number of the nun)dvy:5lfq f4cleus

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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 adkp hx n-s7l0:4ib(sdn 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 nucleus:t7o/ef9 (pwnk3f gcxqcfmn hi-x,- * 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 of neutrons are reor2: 2rmcbi)47jkd fpferred trj4bdp7 mcif2)o2kr: o 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 have nucleg2hid mlg08) ri 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 defined tkfkc fv87or. x./nn ,1cn*nlas

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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 and4q6xq:fhm+6tr4pk y t neutrons, the total mass of a stt fr6k4tpx6+q ymh:q4able 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 stabl9m7b5wkjtftvdb 5r 6p3dv 9 /m6g-yye e 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 contributkr: qp)9bo,zv :8hdj:rf tibezj(w29 ed 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 nuclejuj b:5skk-z2r j6dsmx 9(2e eon 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 nuwop3xfs6 x69c cleon

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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 falxol9 /- lvrj4afc66 lgse?

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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 forcyoio)ky2tr6pxm 3qw)r7 )nr 8e, the nuclear force between adjacent protons i)rrqwyoyxk 3)nto8 72 p6mr)in 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 penetrateq gr)x, lv01+95hy8cprxifi7 gy oe;l

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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.o.vf,tj0w wate

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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 (rv:tnm 6f5wz;mto b2 /vw)wq

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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 knowlqr k ( -sj+27oobi,lo4pq3cfn 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 kd.i(,egi r8k nnown 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 to a2hdpnd4 ,.*2 a)(nxdneuquaj

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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 wa9o/xal: fuc8 nwi)ic ;4k2s 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 unstable nuclevw /q;z 3854uqpxjj,zu1amih us, the atomic mass number of the nuc18v5j /ux qw zhjuq iz3,a4pm;leus

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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 atommt-:hk5 u1x kmic number of 1m mhx5k: t-kuthe 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 repr:rn nu8-v, g pi4 o+:ejvkosy(esents

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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 rsx jci)*g/ftf w;4df2ay?

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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 anwt+ka;:4pskob+dec7s 1 pr; r 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 thoy6: vf48tbxk-mokd c :l .e)ee 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( t*gzq(jtjq9 2i e 1xe-zzf,e is conserved in addition to elez2feqqt(jzj(gi ez, t* -ex19ctric 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 radioactive substance as it decat mcfjtplm2o3 e8su( :pp+ocx ;8n:8 bys?

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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 q aqyc)x*m)q. is often used. This nucleus emits a single beta particle when it decays. When this happens, t).cxqqqm) a*y he 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 c 2bczum37*d tf4kckjl0hh9d,urve 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 hydrogemb2y/db/f c2shusl i2+:f yw- n 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 beca41q* elk*.eh5 ighnhx use

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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 numberuw,v61igy2tsoiyer79s d- /s of 14 and atomic number 6 has how many protonsi-/,rwyoty 6ui e7sgd1s 29vs?

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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 , z etaxgti8s/+mg+x 5number 6 has how many neutronsmg t g/5eatxs8+,xiz +?

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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 forw (j+ap9fvxy 2z/ e7 rot)a-rz calcium 39 are 20 and 39, respectively. How many nucleons are in one axo2zayr7 z t aj9(vwf /pe-)+rtom?

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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 arel-cld;wocbio3z3 38rz8 9ka e 20 and 39, respectively. How ; wcoz833e9i az kclrodl- b38many 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 numb qfcn:oeoxiz)83j0**p/wiuber for calcium 39 are 20 and 39, respectively. How many protons are in one atom?/)*ocz*uqn fei3:p w xj8i b0o

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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 calciufv;n s) zh7f)em 39 are 20 and 39, respectively. How many7))z nfvefsh; 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, nh2e 0dh7e rq181p ypk83g ylmkzhg7l;eutrons, 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 carbonmqaxg ;q*3. kc-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 nu +nbmssyl;me dx26.z ,dd;sm-4frm*wgwv .c4mber 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 energyva:zq.08 xm6d kscn (x 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 one5jhm++sa zlo 9y a0l3eon t7 5muc/5cs 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 goehbvy*se m ,wa48ho+;rp/8a dps through alpha decay. Its atomic number is now;a , hw 8ae*rvhy4/os8+p mbpd

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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 under y+aky*s8kcm7.zdnp-0e 2v+nct h-gv goes alpha decay, what are ang28+-0n spzy k- v7thv+ ck. cyedm*the 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 b )knoaml so 8vkfh(*+5y beta decay. How much energy (in MeV) is released)+o5nmfalv 8( o*k hks 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 atomic number 6 und,.hc2xk ywaj( 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 mucc0i0 m/w;m iwwh will be left after 100 yearsc wiw/m0i 0mw;?

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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 tham/36i7l m-3bw3pj k lz2-jkaw wkj7c pt an atom will decay this year if its half-life is 247 ya 7b ijcp2- jw3-jk p3mz 76wmlkk3w/lears?

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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 at o+ayvno3r 1) u$10 \; \mu Ci$ 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 fraction ofpvjskc+j*.3k* j 5h mw the sample is jk5.w *hjc+m pjsv*k3left 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 many iodine nuclei 33n epgelo;/n are necessn;npe ge3/3loary 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.jzg hkbe*. )u3gwhrpb50z w :40 days has an initial activity of uw* h.wp5z3jk gbeg:0zh) 4 rb$0.24 \; Ci$. 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 measuredzineu./ c11dl 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 carbon-14, a beta emitter, is 5730 yludinz/1ec . 1ears. 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 takeah-rmfh;wi3t7 f*q 4l $4.0 \times 10^{20} \; atoms$ 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( f1i/i2 ssoo anh9n5c $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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