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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 hhs0,dx;7i hbt r(3vavas 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 5t+:;, .g eckdrwi9 g knden1- qywke:is

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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:rg)2 5ei;dr gn huvv akj3r9( 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 0emu7 z1 at(gudetermined 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 rc-.3u9ose (vl/ yaxgk9 rqo( 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 gi9hnm8u oqz1 r+;1 a8s fuow)nqven by Z, its atomic mass by A, and its neutron number how8 n z+fq;aqnur81o) 1m su9by 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 unsta 3.s/yg;e qlsm29uwm able nucleus, the atomic mass number of the nucmq 9a 3me .u;sg2ys/wlleus

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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 ( ;y9cfg0ojd7i ec k8vatom 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 stable7l8ok-be- xg p 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 different numbersjm;9puej3x+ 2 aumb1f7r 5qr3 )xrfo d of neutrons are refermj;9qu) p3mru 37x a5+ xre1jffdbor2red 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 witc w.yz-qo3.gp h

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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 af t e:s ovou -ni2zg2cvlw)..9s

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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 and ucf*fio: f8)c+kq jsf rou 6 s)0s9d3rneutrons, the total mass of a u 0sqj rs9fr: cfod6fk)3uc if*8s+o)stable 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 sta ;/ecgopci4mp6k,i: apcl *z6a*9grhble 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 cont75spqe lvhb39ributed 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 isa 9iya/j/9u.brk u zp;y m,s33kqk3fd

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy percp+l 1kz9z1 98j vzirrajwz2: 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 statemed9 x*rm:k u.b8t cu+eonts concerning 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 1s0,tm pwy37cjs4 rkd nuclear force between adjacent protons 1s4j7,3c0mdk sr wpytin 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 penetrs 2+6zoi6jtz6dung*sate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate;yqti/jeiv0tg v mfxk7 hcor0;iye *f(w/ .--

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat k+tzi5x6jqitu+46v a e

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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 alsowgv:8 2vnv72bn rc8y l 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 knot 2q 08bkshkz6wn 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 bfrtuwv v513 5r: hj6m py.w.cue attracted 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 an m0 ifot-7gv y5dsmrvjz+6/. natomic 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 /57mz;gw+f o:pyh 47nwhkofi nucleus, the atomic mass number of the 77w+f:yz4; o/ o 5wfiphghnkm 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 from an unstable nucleubm;b +-h-saay6y ke-p6*dy .6un b1ute oy* vis, the atomic number of the e1 .uda66 oyu*eyi*p- vy6ybb kabthms;--n+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 - MY8gb h3y(zz6 nw - 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 isp;(.)ndsr (is-oo0p9dwvn 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 from an unstable 4 nw1qweh-9ysr/ouu2 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 mo/0 a :te tjacu,l nh 9,lw8i1re*/ddkb sbva*5st 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 conserver18b :sp.3jy * 9jzp.wpxj wdud in addition to electric charge, energx9u3wj rz.*d wpp.p:jbs8jy1 y, 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-2wxhp; 3zfmb( hyl 2ig31e-zalife of a radioactive 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 us+kwu /qprn6oeonlu1la35 t5 5 ed. This nucleus emits a single beta particle when it decays. When this happens,loq5/5 13nkw+lauu5no 6trpe 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 ef 7,nia1 gqklhb:+wvw8 6l,dfield 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 hy m4o dxas3q6(ndrogen 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 beccqsjt+,5hrup o am5qxg8-3 3 hause

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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 6 has how man3 wh2wsk ,0w 5jl4a)cdcyj0 dzy proton2ly5j0az,wcwkc h )3d w0d4sjs?

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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.e4h 4x*cmpwn 14 and atomic number 6 has how many neutron* .44mwpcxhe ns?

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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 20yx9uu8g3j ;jjai+ cd0 and 39, respectively. How many nucleons are in one aa u cj09j;3+8d xgjuiytom?

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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, respectivelyo.ug pcy- i*o4. How many electrons are *p.4 ioguyco-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 bk*gzhyy;8* pand 39, respectively. How many protons are ky 8;z*bh*y pgin 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 massxf4 bwwph 9+3n )-waqi nrv2-tcvt iy:.4 jyq+ number for calcium 39 are 20 and 39, respectively. How many neutrons are in o+ifp32:abyvqn- jxw q4+ir 4w .nvhy9 tctw)-ne 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 electron 73z n iaws/ .6cuwkhb7glw4u)s 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 the 5mf ouhb4s-iyee9(6u si x00mre in the 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 9dj(z9u*wr .k9;q phoea v2mcan 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 energy of buo5yi x 5gxm)-ii99s$^4He$.

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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 prol*djk0i5 hks0 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 atomxy6tcws +xqc2lm t k.f d x:f79p7.7wdic number 88 goes through alpha decay. Its atomic number is nowptf7ms769tdf w qyc.wx dxc.7k:l 2x+

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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 undergkiej2 /cv b:o0mjl/w g1s1uj6oes alpha decay, what are the 11wu/o0 i/c m e:jsbj6jgv2lknumber 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 nit3p q:wdmt1p 7frogen-14 nucleus by beta decay. How much energ 71m :3qfpwdpty (in MeV) is released 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 numbrk 9u gjo 48v0xcjn(w,er 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, how much will be lo 2qm1sy8t-qyf47klqxq6 j k; eft after 100 years?k2 q yxjlq;8q1mys-7q4tf6 ko

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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 will decay this year if 8d)/) k.me f0:gmia xqiag ;lsa gn8s)its half-life is 247 year);aig8d0 nq) g:ix fk ml eg8)mss/a.as?

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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 ce3vi bhr -0dii: :s0x.:mepow ertified 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 sal04yti0sot*s .zo ynu3ny- 2 lmple is left a4y nul zy3o-20l*ti. ons0ystfter 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 nucle .7.rrxzhiwe: i are necessary to produce an actiri.ex: h.7zw rvity 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 taa.kesfs-l0q7 /cj0gp ,1uh has an initial activity of a0e.k a-q7 lcjsut1 ,spgh0f/ $0.24 \; Ci$. 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 measured in a piece of kideb( 6 vj:.k5ziwe2a wooden casket from an ancient burial site was found to produc:2b(jkv. ie5 6eikzdwe 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 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 taksrd f9; rnt +s:xedxzn 2/72cke $4.0 \times 10^{20} \; atoms$ 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 taku dnt;i;ba6 u( ajt p.l;kc1b-e 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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