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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 partu)bnwp ,qk+9/s 94jqkl ocym +icles 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 ivd 70rn4h+zl slq+k l+s

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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 h2nuj2))+/zuiqe7;hna)qh kk u 2crc 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 ,13m-psv culj 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 the nu he*e5e)ma / +s4dmuecmber 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 itss qzmnla3q5)m 7 h9z4m neutron number by N, whicl4 57zmnh) m9zm3qs aqh 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 emittt uhlvq*v53 a3:nptwp1b **oajvz gg m9p)7n7ed from an unstable nucleus, the atomic mass number of the nucl :pm*l nvw )3zt np7u agq3gav9 j*75t1vph*boeus

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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 uk-w:o:*pscf 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 nuc9 ko80/16;.l mtpcjh iaocvgr7q tb7hleus 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 differentnnz 52 l1l vq47nbg(dxdv3-fp numbers of neutrons are referq( bv5d 1fvdnn2 7lxgn-zp4l3red 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 element have nuclei.)vs jgxuj:f b uo/.m+d1c j/+ cqqj(y 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 gic3a xcm5um+dn3+j 7 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 l,nto qsie;) ;p7 u+d8ao dq0jof its separate protons and neutrons, the total mass of a stable nnjd ose,l+) t ;;oqpda7u08iq ucleus 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, energs-9q i6vxo,drs u:)d oy 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 contriro68:c p zg7l9 kx+neiu3jr;ibuted 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 i6 75f yr4kfg uv7el6jrs

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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 nuq 50n2.p1 mwvv6mz orfcleon

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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 fo ura 7m ndrn ;, ct:wggc799lymx,vw( :gyu-f7rce 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, t9q68ql mqd o d)b032oyqql u;vhe nuclear force between adjacent protons in a 92lq; v)y0u6lq dodb q8omq q3nucleus 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 penetratehp e.g/0l e)ow

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra7l;c (wm f5axnte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr5d7akf8*q n xuate

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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 wr,a7yr/uk.r+ j mj1ias

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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 nnfabsww+;96b)o:ey/ujl i8zd 0- qon 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(2omd+xs31.i0cl , rktqp sgm 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 equalk1z+wxz .4g (7* lykshlzi6gj 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 nucleus, the atomic mas49z )m3zjt2llql0y co l2j z/ts numbctzzl / 23j4yzt )loj 0l9qml2er of 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 eqsy5 ox (2 k8ifv6nc r zny8.lx6ig3q)mitted from an unstable nucleus, the atomic number of the nuc ocqykf)l3.iis5r 8y2 x6( 6zqxn8nvgleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX -wzd3cd6r9b mh d2xg*zd n015s 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 the samecu b6;o2lo o/ira/pg, 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 nucle/)s4 ;bdv:hzbqn h6 qhus,

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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 mohx mtun spj r;)extn;t-s:4w:4 , x7uzst 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 radioag-5lwp8e9n k4u q9;qefrqro- ctive decay, what value is conserved in addition to electric charge, energnp-qkr9er e- 8o9uqlf4q g;5wy, 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 rad9hc) 3t)e0y:fxh(xt r)emqr oioactive 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-14j u:(eqi1mlujo 1il b3i, 8l aw1p8-gw is often used. This nucleus emits a single beta particle when it decays. When thw 1ii:e a(j wi3ujqm 1u-1,8lb8olgpl is 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 charged particles ru0sxfj ak5-nyg/0w6g,b x1bis 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 55 gl1a2g ,fbivldc/ uuses 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 chambershyp/gx:/5fbl q 4x ac) 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 ai.u: zarsoq h; 8e.fx.nd atomic number 6 has how many protonsx .s..ahu:zo;eriq f8?

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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 neutp8* md (f.y 6zai) fqpml0jtnhb*hu(( rons?ffa*h(d.t *q(p nmz6h0 ujy b)(mli p8

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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, res+ r5tz5fafg3npectively. How many nucleons are in n+ffr53 a5ztgone 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 mass number for calciuk;yzav ,xr+7h d j;nf7;tz (s52pr iefm 39 are 20 and 39, respectively. How many electrons are in onfps f(z+edr2h x7,7rtj y;zv;;in a5ke 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 f;e3 nh)x0f6qb )x uf tq4uva*p.5zr umor calcium 39 are 20 and 39, respectively. How mntx hf5rx)a4 ;*z3uqefv) u.u0 mpb q6any protons are in 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 calcie+ iz 9-5ulwyj8mtus0um 39 are 20 and 39, respectively. How many neutti l9uj 85ezymuw0 +-srons 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 m)/ wemey 6;9gev+hr dof 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 there in the. l q 4-haexhp3s 6xmm,ov;mm( 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 iso/ 3dqbrkyqu -6tope 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 bp ua4j t(t qxv.083sb *.6punrxyne/$^4He$.

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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 requiredf1sd4o2 a ,cbj to remove 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 alp+vb vu*7+clks ha decay. Its atomic number is v+v+*bc7s luk 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. If it undergoes alph6nsiz hk z1 b*e) 5bfor4fm3w(rx,h7ha decay, what are the number of protons and neutrons, respectively, in the daught(*bwohe hsrnb5417 mkf3 ,zxf6)rzih er 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. Hod*me z,o; a pw1fbw z1107ndjow much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u an1djw1onmw*f ;pez0b,d 7 a zo1d 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 undergoes:sx*ajejjf81 bo ki* o0g;kj4 $b-$ 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 materia.)02xj. c bmecs-fyr5mhhh c1l is 45 years, how much will be left after 100 years-c2x)ehyj schm0m.hc. b15fr ?

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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 t i, c8q(s)cyxzvfh-3an atom will decay this year if its half-life is 24q y(ti zh)fsc,v8 c-3x7 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 certifio2 tkqyy xu15lt 1t9f1ed 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 fractionqnp7y2jjs g3 *s 2*cxi of the sample is left after iycsjx72gq j*3*ns2p 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 a )g7fxjh6iyhe(zr x49 re necesszxgyxr7(h4eh 6) 9fjiary 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 substan5l0pldbb8myp 0 m*t d1ce with a half-life of 3.0 days has an initial activity of 81bm pm 0l5ydd0tl pb*$0.24 \; Ci$. 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 measuredd-- gfv;rta nzqo4 er m58iqz4)3:qid 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 years. Thus we would estimate tfai5r3 q :z d4-dqt-r;m8o) ivqgn e4zhe 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 take c 3 pd)o3 si.couc8y,j$4.0 \times 10^{20} \; atoms$ 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 tak5n+eiul6tvj ,* ) eomqe 6nb6ge 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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