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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 i:)z 5bc;vrlqam*o/pt 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 z nj:w;5i7 m) ;mrnp- -kzdlegis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi.1prw*:ysx bz,u gq hoi,p2r. v6en0tsts 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 byae41-uafv4 fp j9pt(fda* -vr 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 numqgsv( 6li*-e cber 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 3y6wnpnbs l*(number is given by Z, its atomic mass by A, and its neutron number by N, wn6 yn bsp(l3*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, tdxl4--s5no t,: vozl zhe atomic mass number of the nuclxz5 ll: -ztsdon4v, o-eus

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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 ato f98/fyoy ,mg-r9sw wqm 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 tt; j9a4k (qtg4jyye9q he size 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 different numbers of ne65576 z0igtbma .g ht hhie-yeutrons are referred tohimeay-.zh7 6 t gih0g565tbe 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 wycff1 .45vcvc ith

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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 define d am9zw2nfm1;(qxfi b.w.v/ gd 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 pzf6jmn8jox ci( 3w9)c rotons and neutrons, the total mass of a 9zncmfoj)8 xj3i w(c6stable 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 stable nucl9- lz:onrp d9leus, 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 contrteckcr+-u-r 326ck lwibuted 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 nucl 2,q6j 47oexubpor7wgeon 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 p -i+lrk,yt x6ler 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 concerning the nuclear forcsnhpb0g4uog0 t3b3 / ue 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 adjae ;ab xeey,q9rxd); t5cent protons in a nucleu);y ; ed,xa5qrte9exb s 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 penetrateaq in/h;v5oxa6z mcca3h+6i6

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrat)s,a6zyq vc7ke

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrateokrsq,by.dk:1hk-f(u 6s 5 t t

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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 kdx1k 8ps.jqm +/uf5 zbnown 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 knrjy- nw kamgau08g0*1own 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 q esk*yc64)diuxl4g7a

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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 atomivm7ek 3o:+ls lc 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 n;1 k v/hkzu7ceucleus, the atomic mass number of the uchzk17;e /kvnucleus

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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 atomicd*ksce6/3arwc j b2q* number of the nuw cs*jq 3 eca2r/k6db*cleus

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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 r96k v)zf7i2kq9j t8cpfyuye1 epresents

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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 sju6y;9wa6o.tuj9,i vrqh i0the 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 emi iqe ie43 ww ;vu)5j7kkkzx24otted 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 the most mass?u-2,+g rx gqpb:hra-s

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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, whati hace9h,ef- 85wbc )y value is conserved in addition to electric charge, energy-bh,9h8w f c)eicaey 5, 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 db:4kkh36st rew lwq b8j;16oaecays?

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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. tf)csd6r9xdf b0k* ( s This nucleus emits a single beta particle when it decays. When this happens, the0kfd9btd*s6 ) scrfx ( 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 charg0b:cytjg-t4 m ed 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 hydrogt) u u(cme/tq7 ktd17cen 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 becauseq6/qxrm9wr ubk2t zu5o;5o0q

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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 b.zf/;oqubbj l8z e-(has how many proton lo/jb8.bbzu ;qez(f-s?

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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 atom,:c kq9vyvq t0ic number 6 has how many neutron9vkqtcq0 yv:,s?

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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 s nxj 3r x*/plq)-h8dqand 39, respectively. How many n- q *hxdq8nl )spr/j3xucleons 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 calcwi+v1n 7/ cioej5i4q )7fwiufium 39 are 20 and 39, respectively. How many electrons are inf4w)j/ivow+ iii175ufe c n q7 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 and3 b w:ckdzkxla uh2-// mass number for calcium 39 are 20 and 39, respectively. How many protons are in one atklzb:udch2 wax-/ /3kom?

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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 jic +hjg.bgadr p0w8ii- )-3dz; m* zsnumber for calcium 39 are 20 and 39, respectively. How many neuthi0gg ;3i ja-jdm-+)ic8. zrbw zd*sprons 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 n ;iap rgf u.ta)brp4+,umber of 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 carbon-14 nucleus hn 17mf/aa3ns?

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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 an4h5upt 9n; pjx 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 eqe:2fuht :r :knergy 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 t 2d;i p.) dl aqmz2 *y1kyxvmqd2o8ya9o 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 al73 f 6( cxcbjlmjowj+206; des/jv rkcpha decay. Its atomic number is7o2fc e3sm0x/v(rkj 6+;6 dcwjb cljj 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 w anwn bs:p9 b9w;4q7td .gx-(j3sxgm alpha decay, what are the number of protons and n .3x-gq p sd; xmwj9(b n74wgb9a:swtneutrons, 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.rqx sz.wj/hd sv ig ,-)kjg*5 a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of ridsw,)5x-.q k.gs*j vg/ zhj14.003074 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 undergoex 9ey,fvabns;0de7ifl7 o09d 1rcnp-( qt (hv s $b-$ 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 left after (d m 9h)arfdyyx68a1p100 years?da91dhyp( yx8r6af ) m

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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 wisz+(q wubvun :d9yk)ms * .1nall decay this year if its half-life is 247 years?:b.uk+a* dwy91)nsv( muqz n s

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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 x.+cwf nlp b8;2y:p 2cxhxh,a $10 \; \mu Ci$ 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 sample is a wl;ki(2g7x;j.mj ssz 0f+/2vvec pdjq v.,hleft after 40 g( ,zm+w sej7/ . vhj0;vjidsk;p a2.fqx2lvcmin?

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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-1c/ 32s:(p bhg9 goeoga37 is 8.0 days. How many iodine nuclei are neca/pecshg:3ogbo92 ( gessary 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 3.0 days has an toi:kvgn owd83r0v /+ initial activity of rowni/v o+3 dt8:0vgk$0.24 \; Ci$. 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 ing 7t(mpsknbm, )c(o8v 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,b k,n7sg(c (tp)mm ov8 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 takkyg; csecv *hqz)an,a;y 88x8 e $4.0 \times 10^{20} \; atoms$ 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 k2a+wom-( tlto.u rs9 $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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