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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 particlpw9. al2sejfxxg), b+ es has 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 ic 67e 9zb6+uub; oye uz*ou756h cpajms

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleusv3hkb 1t +op5.bp(lt i 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 is determinedpf8r+2 )pwa83rh utt m.mt+wm 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 determ+t 84hqz;ydw)p g5pvvqw8fi0ined 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 number is given by Z, its atomic mass by A, and n0t5 2 r 9uwsn(zfdjx/its neutron number by N, which tdu 50(z2f9r/j xnsnwof 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 ;hk 1t 1jb*3/5mzzps fwa:s0qz-yxy fnucleus, the atomic mass number of the nuclypf 1fawkz ss 5m -h1z0qx:z;b*t3y/jeus

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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 im6 6)ilwzjhda:oh49 wn 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 stabg2jd8*2qlrg,/c0vkh v o :+igp zgd l4le 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 wtfvt(e2dfdz 4pc*6q(y20*rx n+ q kdiith different numbers of neutrons are refe* r4v+eikdtdcnyftd 2*fq z6(02 p q(xrred 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 elemenap9gb1t)d 3xz t have 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 dez(yjluoqo p wd*av5 9s hx0./-9leeix20lk +efined 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 u2;ouafx:3 u *t(, xoe7mwmdn of its separate protons and neutrons, the total mass of a stablu 72xam3: toxuw*uondef( ,;me 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 nucle golo1 w7l 4mocpu ib5*3:gk8bus, 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 co0 3/swu8ef7 ak fzmnuu:f)wk1ntributed 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 nucleozsu3d/19lcxh- iii25tvly a *n 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 pn.4 fbvws wkuvj8+6 9r* ux-dmer 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 statemen s(4se4bzmawl:d ,k9uyi*;so. oi w *ets 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 nuclear force between adjacent protonsyk*u/v q8e lcs, gkt-+ *kk sq/c8,tg e-lyu+vin 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 penetrateh x( dklb4(waapss- )*

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrao-h(yz + x l58bp2eownte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrptp5f- ;9o+:g zpby lekb +la*ate

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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 kn9devd) )4 x:t5wiqd7osmj:t kzh/xjlz e95 /wown 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 as/l1gl :zb-2 +b.bm g,nzjyq fv

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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)rri 43ahlr3tpn v.; i:7nrpb be 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 atomiq-m+dw e-)ii)*m ka / yzef)lyc 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 fromjx61k. zfncn8 an unstable nucleus, the atomic mass numben68jxzkf.cn 1 r of 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 fgi78noy o 1x0/insvorr , vx52rom an unstable nucleus, the atomic number of the nucleo i1, nnvig r 5o/sx2yo80rx7vus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - Mj5gg)3- zm9 jobqz my5Y - 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 mx-gc-trbrz hc+vt .7g522 py(y*s 4/sj coxdxost 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 unstable k ejy9pmdk;-u6hv2 wxid/ocg sc- 4jsbe) 41(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 mostg/3( x s/w,h3lbpazl r 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 conserved in additq-zx zc;4 h q-va1xh 6plu63zkion to electr khh1z azv;-6cq6 x3lpx zuq4-ic 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 rado(t+ tq jfuh61aod );dioactive 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 nucleus emit w,(pgco ob:g:s a single beta particle when it decays. When this happens, the resulting nucleus b,pw go:g(co: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 x2h6 xx/xpdoa8zss 0r39o tx/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 liquid hy njc4owwwu;4*th m. h7drogen 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 replace5fv(4b:cf id wd by bubble 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 az.ph :n.sqiu-n j v,+itomic number 6 has how many protons?ipsuvhzinq. , jn .+-:

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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 many9vn3g )m as;2soj rn9o neutron)snv9j3 g;92o noa msrs?

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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 an- )ahelaw:vo2/pq6np d 39, respectively. How many nucleons a2ha )ve-oq p n6wl/p: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, resvzzjc0* 3c7)lgp9vn bpectively. How many electrons ar 0 nzcv7 v9)*bzj3lgpce 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, reseu8d r58z0r2 i:h+un:n tdrra pectively. Hoa :irr8 hn 8 dd+2:5ur0unrtzew many protons 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 mass number for calcium 39 are 20 and 39, respectivelyoxsl5v4uo+h re j/ 8kcz-2 d5i. Howho ekdzxrc+s - o245v8l5i /uj 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 af1 l3d8j6m qlnumber 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 therhpacf p2e07f b7tx coge10/+le 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 atomigp9+*k vr*7ekb no wh-c 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 o cu+xrallgm 7k8i540energy 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 required9 ht.+xdiqe9o to 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:/bz0g , ng7zm 3f32qp e hbfobldw17a 88 goes through alpha decay. Its atomic number is no ,n7h7azgodm1z 2fwb/qgf3 3 e:lbb0pw

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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 deca sw,k3ij )7nyry, what are the number of protons a, 3ywsjk)irn7 nd 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 nitrogen-14 nucleus by be-f+ cthjzq-uqzt x. ;;ta decay. How much energy (in MeV) is released if ca-zqqx-tjt+;f uzh c.;rbon-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 number 6 dbo.zdj wc -0-rx+9vkundergoes $b-$ 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 100pqr)y,acf uum0ev1 7 ) yearr p)uv0a7y , qmf)ceu1s?

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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 deal)em6 tg7*f tcay this year if its half-life is 247l g7 6a)tm*tef years?

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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 certifiedntw 0 4/ta( e.8mmc)h j: chiunw/buv. 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-liu+ifsz6(fy q2du2(iefe of 10 min. What fraction of the sample is lqu fus d( 2(eiyzf2i+6eft 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 iodine nuclei as2ht q6s5sw+j re necessary thsstj2+ q6ws 5o 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 lc 2hcp*ke/z ,3.0 days has an initial activity of lzp2c /,h*cek $0.24 \; Ci$. 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 piepsxag2o8 / o /zg91s8rbdd 6oseyx;(g ykv7+nce 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, a beta emitter, is 5730 years. Thus we would ess8abo +p/v ke(9 z6dg/ysgxorsgd2 7;1 o8 nyxtimate 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 tawxce3xl /xw- kj88ll1ke $4.0 \times 10^{20} \; atoms$ 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 aoe 9imrtvq s/ ma2q2cg .o)hfs/y59 p* $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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