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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 has the least mfx no4spszan;z3 dfj4 8 ;tmgs6/j6u 1ass?

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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 is8 t9jkvpcj (9;z*dyl x

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus co7sb47h yw8ow)ys0( 5dkuglq snsists 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 ii j k gt76sch/k)i8io:qz+(rzhsd m 1)s determined 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 determined by the numv uw*g k+m.2btber 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, itt3s btg m1:t)i: s0)oxcaia a.s atomic mass by A, and its neutron number by 0:b sat):txm1a.iai)co tgs3 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 o n31sa146i 3fj7tkpb)2c xyxbtx9 ffzf the nucx bj6i 4tt1zx27 pa3fns1yf kbfc39x)leus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of proton o/tc4( iqldg8lrb vn:mn fwoe)/ 1-i/s 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 sstlk2bl3 *2 qvt a+d1dize 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 differeo; ewga qyuf(6g*zqw 5g3pq s)uil71*nt numbers of neutrons are ref7*oe;1 qi yqguglf*a5z) 3( wqwpu6sgerred 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 wjkcz8*u)3uhuw 2 + lih4aq (ndith

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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 kz(6 y*n2sazadyyj 13defined 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 i;vswz mh(qg;( y+yy f56s1y xbts separate protons and neutrons, the total mass of a stable nubh zyyx16g5 +;fsv ; wqysmy((cleus 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 stablerbg0-ai u q*p, 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 contribw8 qcnpor48 jc:qlur2djjqd+5632j vuted 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 ijwx9jg1 .kar 3q e;z2ws

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy pcjel0fv;xr6m*j- z : qer nucleon

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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 concer0qr yxo ,-rmzf,dwz()ning 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 force, the nuclear force between ad)6mfjrmzq 3zn yv- d4(b;up8zyg)9ed jacent protons i8ndq (pjd9y3)v yebm rf6ug ) zmzz;4-n 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 penetrate+aeey u, ,e96+uyqy ye

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrateol(i7. +m-* rlzcggqd

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetmc+sbf1xjq;* h5usa /rate

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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 as -ng*)y0v, dol r9trwnfu r;:q

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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 knownvs6 lwpfrpy+* mf t6.kv jp5)5 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 t g14s+ 5p0 zmhsiew1xxo 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 ath4y (di+2d8(k1tjk:ua bskq komic 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 nucleus, the atomicoh/k2v r vg2q+v ye73b mass number ofb2ky/vvvr h3go +eq7 2 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 ff/j2/2j tlqt u;/jy7v ap fy8y,;sup ikp aw8.rom an unstable nucleus, the atomic number of .pjaywy f /s;//atp7 ifyqk juj ; tp8,2u28lvthe 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 8f8jvdzjh :a7,snt8 a- 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 same as a gam ikssys 8awx7t/xq7 i3x9 .zc*ma 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 nfos.5jfkm-/* qego .rucleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has tv4 vx:8 sru kwv4e)/ya6st6ct he 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 radioactjyqr2:i 9-v laive decay, what value is conserved in addition to electric charge,ir-9lyj qa v:2 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 substan7xxyc/kj .0yxws.an /ce 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 of93 21jdudy)ifi ot6j4 yjl/w dten used. This nucleus emits a single beta particle when it decays. When this h)/y9 oi6y23w4 jdjdl1it dufjappens, 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 ma n3**; tpqjzwtgnetic 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 liquidh byiy zqv+uq0i)f5rcqdlq . 0+9i .k8 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 sukmtjq-) *19 ) bcxrebecause

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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 maoiohr/+ 6pxhw q, 0-sqkm52vbss number of 14 and atomic number 6 has how many protonh oo6 p/hmv0i b q+5k2-w,srqxs?

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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 ;sycoy j9pvy2x sovp5q4+s )7s32 j-qc h9ogsneutrons?sqhp2)4j939xycov vpy; oqss7y+g oj5-c2ss

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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 mafo*vco9(82whdp g 2 zruu(jp- ss number for calcium 39 are 20 and 39, respectively. How mwop*- j2z2o g( 8dru9(uvfhcp any nucleons are in one 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 calcium 39 are 2s1w:zic490vsx amws 3 0 and 39, respectively. How many electrons are in va30z4:cw1sxim 9wss 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 calcium 39 are 20 and 39, i9d+b .z 2y uz4jnu8ez-n,rlirespectively. How many 4u,9di-2+znui 8y zbz en.jlrprotons 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 mass8;1ruyxgwoag te:/ e.hdex.. number for calcium 39 are 20 and 39, respectively. Hoduhea . rye oe18:gtx/.w.gx ;w many 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, neutrons, and electrons )3 rfj5v 7fjweis 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 nuw3iky +e po7f -mjg.6fcleus?

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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)e -6nct) y)h0pmo hgm36qthl number 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 enqs9/y y-0mmot ni( m7qergy 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 one pro smiq eqhb,yjf; ;9e,.ton 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. Its atomic number ii;s 6 5,b0h qmmnf;vmzs nomsi6mm b;n;z0vf q5 h,w

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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 alpha q2of34gj3vg) dqgg5p decay, what are the number of protons and neutrons, respectively, in the da pqf43g)j 2ogq g53gvdughter 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 nul8q4l.ik-x7o 73hxqpaok m u+wz9,gbwu0 5wp cleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 .7 3k +zqlg a58qkhlp,0mbxwu-xp iu97owo4w 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*diy6 ,rq lf4l 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, 9ec+qe04/ exm6osr prj,smu0how much will be left after 100 yearjre pes+0s4x 0/,umce6or9 mqs?

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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 wils/e 9trls12eu l decay this year if its half-life is 247 years 92/s1lreuets ?

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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 cerp/y:awgxz5 ,btx 2/ 62 nlopit6f(pewtified 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 fraction of the samplv:j5fzl vr9ybanr;; 0e3off wo 2 e,j(e is left af(vz , fy:bav f3o 9jfr5ewn;j e2lr;0oter 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 nuclegh2 s4lm)hg8i+i1fpki are necessary t8p i+ks)g2milfh h1g4o 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 substad b8 tnjd+hhz) tj7:a-nce with a half-life of 3.0 days has an initial activity of 7j n 8+:tdhzdtab -j)h$0.24 \; Ci$. 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 du9urhiinrm;xw+-0q cfe1 ml5+e to 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 saq5fi-+ n0 mcr lmwr;i+9u1exhmple, 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 tak4)os lvj4e ruc g5*9/k1ziddrz,n. mqd1 x+cve $4.0 \times 10^{20} \; atoms$ 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 l75slhuee d4i/ 65inq$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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