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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 particles has the leas )dh fwg /jfno70f39( owzzoy uq;68eut 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 1.)fh6 gvsvawis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus k es(.wi;-bms 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 i-mxz71/wpqt ukq/ a s3s 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 .j5ddmes69/ fe ve+os28wiai 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 nf;5 xs:gahyj0c: q si-umber is given by Z, its atomic mass by A, and its neutron number by N, which of the fol5j y-h;: gfsi:xqcs0 alowing 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, tqikw :- 8z/feh ggfu,;wjk;b0 he atomic mass number of the n izfb ;/-kg0f, q w:wk8h;uejgucleus

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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 a3du242mjo :w:utwm sgtom 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 nuclxez;.()vb ji8 17jcshtrf+jjeus 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 neutro newemjkn a17d8k(- ,vns are referrnj7 ne1-,k 8vdkwame( ed 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 witqhaj s:w ;wm5uh1 t8)dh

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unitezdnq3-8 hc7r;kj. bm 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 of its separate protons an kpku9).z,q0nm0aeh4g(e8 f s 3b vnlud neutrons, the total mass of a stable nucn,0ak9u4ulv q)0pnbsgf 8e m3(hk z.e leus 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, energy ik-q )zu*m t.+ * rbg+n)whtqvas

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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 nucleusdyxk29 6u7x7d1gqfp r is contributed 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 pex:nas54 xw-(qvnc 0urr nucleon 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 nucleobiip*-l f45k8gr q/qvn

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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 f /5j7:wgcyds porce 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 forc1swjj t1 *n0sye between adjacent protons in a nuclj j yt011w*ssneus 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 peneteiyh)7d/ a i:arate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrany6uqiko*(- ute

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra-jfzgs.7r: clte

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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 also5 xgxy054-m pv8ajohq known 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 known a hyzvk35y k03(w6il hes

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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 att7q dme1xj; xx q1r d;5iz6h-spracted 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+2e/a gsws:wg8/z z1o ;d1ba) a odqjp an 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 nucleus, the atomic mass nfd;)5 wzvm;ms umber of the nv;;z dm5f smw)ucleus

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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 froj-x3eglm*ly b1n e 1:,weu: gvm an unstable nucleus, the atomic number of 1b : ngj3xwle,-elg 1:em*vuythe 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 - yb :w-tuana 18MY - 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 sam po(td2c (hozbjaw rz3q7+m76e 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 emi- 9ck sgauy+e9tted 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 t wn3 3nvl)9brwhe 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 is conserdfc( t0 +kw9szwxpb-5xnl 2g - *5.auzgvg6sbved in addition to 0tc5w .psg9-gl vz*zdu 5bf(2kxw nx-a g6+bselectric 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 radioa .w,7n mhg-o,a1padx cctive 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-14 is often used. This nucleusd sqbh-1,1abk h 7:7kka+grzp emits a single beta particle when it decaysdk,-s +kz hg b7ba1qk:h7 pa1r. 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 5jyf8 f+1nwm,onq*wpcp+3w mwws6e6that uses a magnetic 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 le1ikm5 w *j1ux/d)-zj hh xwq1iquid 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 bubblew:w7izqk 9 ufc-hf6o 6 sb6,ri 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 atomic number goh5;ii v z vyrl13/w1npz h0/6 has how many protonw;0oz3hz1/ ril vvgh p1/iyn5s?

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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 ;8eu/et2wb rm, hyfs3of 14 and atomic number 6 has how many neutronybm w ,s 8tehf23ur/;es?

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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 ahb nn ;lh4yhds 95z(g.nd 39, respectively. How many nucblz 4 n59dhny.gh;s( hleons 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 20 and 39, respectively. ri ku .06n6m c6e,zwms How many,r mm6sw6 cue0.6kzni 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 number for calcium 39 are 20 and 39, respectivel8ppr ,htb( oxn: ,z0ljy. How many protons are in one(hn8lbj xppo: t zr,,0 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 a.jy.le sqzq6t 8ng-)jre 20 and 39, respectively. How many neuts8 y jj.enzlqqg.-)6 trons 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, f ,- fl9l f2edzggnu31neutrons, 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-1 2w(w hrfl4,f/hoc7t y4 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 t;2bakn,l5r y 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 energyz 0htfpr v;k2- 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 k3n;xzpy c-(vic hl,2 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 alpha decas hs6 8hs9p+qzy. Its atomic number is 9qhs s6 hzs+p8now

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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 04zw 1ruub e1vnucleons. If it undergoes alpha decay, what are the number of protons and neutr1 v1z0bru eu4wons, 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 decae1wo zj,qyees2nx,5 z7 3.dhn ys to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.00324j2. ,oe1nxye, 7zsdn3 e5 zwhq2 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 atomis h6.ub8;p xf7mse/ tdc number 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 mvwzln ds h8h-cd68fo g15 nn3+aterial is 45 years, how much will be left after 100 years? -18gfos+ 8wnd5nc3zdl6vhnh

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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 tz4z4 zbcsm*bw-ppy ev1 ; i/ngb7+ o(lhat an atom will decay this year if its half-life is 247 yem ;-bbze pvz zcbwg+4io(*/4 pysl1n7 ars?

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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 certi590eifwf)n nrz- *wyaa xk00p twq)i6 fied 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.wxe oc) c e5rqd*16v6mil04ji What fraction of the sample is left after 40 mi m* 6 iojd i0er1clwecvq546)xn?

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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 bi98hf++mxzq, xqs -anuclei are necessary to produce an activity oi+x-q 8qm s fx9+hb,azf $1.0 \; \mu Ci$?

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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 op g/ph7m01fdxy xq70of 3.0 days has an initial activity of q xmpoydp10077 f/hgx$0.24 \; Ci$. 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 vy6:hsk+qy(b measured 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 hy+hyq( vb k6:salf-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 taka+ n*leg7x1 3 ;xq;dj4w)nnuh *engbve $4.0 \times 10^{20} \; atoms$ 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 takeo:z uwm8at3 2u 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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