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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 leas1lgkf+ ewtu /lr ,ue0:t 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 29 huuf8vmoh(c h46xnd0 jqn2 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 oza2dl :) 8qbgckf, nd3f

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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 number ofgv4xc lf3p(, t* w8cjv

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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 ;.:;3prx mhane:thrugn:v6n 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 number is give mfciymf3(tn5w4 -8epn by Z, its atomic mass by A, and its neutron number by N, which of the following is co5fefw8p mim -ncty34(rrect?

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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 m dve( 0:rej)g/lilslubs -odccp7+96ass number of the nuc)sj 0gls9 /e6pclcol+ 7 -bd(uverdi :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 protons 1x*jtpamwcf f 7zjv92huev/h b 44i-7in 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 size of a stable nucleus because ofnupt8uc -abo.).: yg t

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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 -is -f+ ,lsxkw*4qrsb number but with different numbers of neutrons are refess ,xskfl-4r -*+bqwi rred 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 havh) 5nvgt:f+eqx 3e66 7nklu noe nuclei 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 is lpx6k3 jl,x/x 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 and vu7ukdc nvqtlh3 v:4o172tz/.gik+ x neutrons, the total mass of a stable nucleus is alwadtu1.v7n +ktlvk: 2 /3ohg q 47uxvizcys

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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 )wo a2- a1j(j-lvpmju:+h jwd a stable 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 nucgayon:,nns qm7/jf *9leus 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 per n4+)kxxq 8oj rducleon 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 pnb 9xzc yg:l;ay.au1/er 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 c; 56gap,sws ogfa*ah;oncerning 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 f1)ptg.8tt qzh.4clq y orce between adjacent protons in lzqtg 1y ptt.)c8 .4hqa 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 penet co1,x nb;uc4erate

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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; kk t3yutn-j4

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet1yglfc. +sp*t u0c+ jprate

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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 kz 7yazd8hnpk0 b -)j0znown 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 ashg5 5wpij3 +inkfo -wcx-q.:m

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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 attracte(ahzw6myr1 m- d 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 atome fpho4ill5dmba7c8 /cd 32 w8ic 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 unstab w(5yajtn szg4.5vg8wxmk);2vz 0pvm le nucleus, the atomic mass number of a k2mjm4gtwvny.8(z5 ;z5pgvx v) sw0 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 from an unstable nucpzq9: d vt*e;b)t0 nvk, bvf8;j(vtyeleus, the atomic number of the nucleuyfbbvd8 e(jtkvt*,z09; ;p tvn)q ve:s

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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 represents: k-us ,0w2jqn8va;dicerv 2b

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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 mostm we m-hg1yr6ds (o 4al.n-7s6*d33lscpww ud nearly the 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 unsta9 ug f-nbf,z-mble 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 massy;1s s.o+u1 ref a.1hnxk7szn?

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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 ra qbpo ii ;6thsnttiy9 4x*56t8dioactive decay, what value is conserved in addition to elec* x6 so;n6t tyqt h9it84pii5btric 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 radioactive substance as it decays?8:o9y eiwoj2r

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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 nucleus emits a sinc) 4p)oa 94addiyz -vdgle beta particle when it decays. When thc 4zy)p4-vaai dd9 od)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 chargdzsa*6* mhx,s 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 hydrogen is acw 2,sy/gn 4/yd3wkxc2z0we- .gmvul

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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 bub v)kuw/.q;rb mble 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 6 has how/-w2uqkv pm3 g many protonskqvg w23u-/ pm?

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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 ne 4ab(r 0aovw-u vojs90utronoor0a (04 9uas-bwv vjs?

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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 calciiax6dk5p0 dqbc7s 2l-z 5c4 cpum 39 are 20 and 39, respectively. How many nucleo z2cd4ik6-p xcbslpq7ca 550d ns 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 numbe y,eooaj al +;/ziq9+cyryt30r for calcium 39 are 20 and 39, respectively. How many electrons are iyjy rzaol3+,cy /; to q9a0ie+n 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 numbe;l eeespimpq70bh o( y,c+,q*r for calcium 39 are 20 and 39, respectively. How many protons are i70(ehp +pb*cqie;so yqml, e, n 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 calcium 39 are 20 and 39, respect(1sp) it78 sxwpyq zr0ively. How many neutrons arpstiz(87 )pwxr y1s 0qe 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 electro2mhq b7s 6t* iy6aidfwn 4;vf4cah2u:ns 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 ircgzrd.qoo8x; j4 7w3 skp t;.1 75hfoviqi 7jn 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 an * a8a eysen2qefi9n t9 (zm s7xd/p*7zisotope 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 ensx/1wy/fbx91 zn 8lk-y3a+*g n iuk rbergy 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 pr7ay2.g6gywj5l m 4beloton 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 ydda9h4r dw+h; 8nrv.dy*) todecay. Its atomic number is nod 9* dt;v h8dw.r)h yn4ya+rodw

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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 t7kb hnke/onj9jnj+u06cf 6,alpha decay, what are the number of protons and neutrons, rnnknc6 7hkj b ,jof+/06e 9ujtespectively, 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 nitrogen-14 nucleus by beta decay. How much s t;tcticggny17m nna,39-4 senergy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogena gssy gn t;3,97-ticn t1n4cm-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 nufjg k(6kr. m:omber 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 i v:r/ ;gjedko5dbc d8elj-h 7v4 f83sus 45 years, how much will be left after 100 yearv;3cv8sd e: d j 5kojh7gf ue/dl84b-rs?

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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 decggw8,jz.. uk aay this year if its half-life is 247 years?jagu.wz,kg. 8

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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 t-xxljg hgu1 g o8a)o1)b*;td$10 \; \mu Ci$ 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. yw r.0ucxrw 3 a8fow:; What fraction of the sample is left orw8ywa;xf3: 0ur cw .after 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 iodyk,b ysln+2 -q7oo r+jine nuclei are necessary to produce an activitj+loqobn-+r, 7syyk 2y 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 zo5l mpw1rw56. pei u8has an initial activity of r16o eu55 p .zlww8ipm$0.24 \; Ci$. 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 a z,b 6)jk uo, t ob.8.xwrty*zuwooden 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 573b k8x ,6).t*jtryu uwoozzb ,.0 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 takene5k2v jy(+kk $4.0 \times 10^{20} \; atoms$ 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 takd4m)r( ,s qd4j6 z4 v*ajbxnyle 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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