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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: 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 least massh8 fb; .kdkqa4?

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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 rlfi ma78tk ol 5s*83lis

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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 oylk-d2okn* d9 f

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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 numberk2b6e5q8w olppz 6 fo.29uvyd/-ay: dnsg /al is 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 by the number of1j 0r)yizj bag-pk(w w b8a8,b

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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 bh4pd:689 uamx 6qvm jiy Z, its atomic mass by A, and its neutron number by N, which of the following im:9ump8h4 a6vdq jx6i s 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, the atomic mass numb+l 0ezd -i5uo7e fw3tjer of the nudtiw+0 j35ez o-7uelfcleus

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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 in4j7, rdp 9orrqh*z.ks 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 trj)d036 d 5hb t,kiaunucleus 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 a22vxtz kgaqnni;sc*3d4. x(x zn5u 4utomic number but with different numbers of neutrons are referred to a ti sx.z4gn2d uc;u x 25(vqn*n4kx3zas

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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 wit1dipt zldo3 7 63rigi:0n 71uc :4n9 htksvdfqh

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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 def3w m/p dup8(by*y:3ujff .tjmined 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 z-3 0(m(.0rtcr g/czpztw a urj;( zhw;nts5bof its separate protons and neutrons, the total mass of a stable nucleus is alway50mc; (zts.b3( g z;/(r zpu- tnarjhc0rzwtws

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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 stablexr0 3v( txyng+ 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 conkq;i 0 kmh:ck2h eb6d9tributed 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 petzhmcy4 aw),r)w) ;u cr 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 numz fs b)1l9n-ucleon

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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 f18.uul1i njaqgwg s ; 0n2q5 jgyj,*ihorce 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,x7 r8ezvm4vnit w)dxz, pxz ;m6(1 jv) the nuclear force between adjacent protons in a 4drivzvzwxpe ;61 v )8 (xmtx ,j7zn)mnucleus 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 penetrat- o8zp 00kul8l9 zsmswe

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrasi5j qfrn ,ihvw-l.2) te

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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.r4 v,wciu j78zch8fue+x s -hte

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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 known asvxicghn :;ks u0;./jp

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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 knownek-(7hg ,re1ra e ahmt 5u0eg) 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 att nu 46f8xl,mtqracted 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 atomic maz14qvzk02rq h ss 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 un0./y-m uolr5rz *b9y)dr meilstable nucleus, the atomic mass number9uo-ryi 50 .ler mybm) *rl/zd 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 from an unstable nuclepz0461fh nc/ nb6tu fvus, the atomic number of th6c410b nf6p n vf/zhute 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 - MY - Ma) x 931. w p /p5n/i 2pk2astnm4)*hgsb5 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 ..nj8n .walaw 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 emitt:n, 7z ljeqx-cis3hc -ed 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 most8j+k j wzd38gj 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 onk:ma .sp) cp:f radioactive decay, what value is conserved in addition to electric charge, enerc: ): pn.skmapgy, 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 halna u7i *w-z6 bmzb1ua85iynh,f-life 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 used. This nucleus emib69vudcmm nahat 8 6cb;0*ys +*+xkmj ts a single beta particle when it decays. When this h0;am * bsc b6vk9dmuam +ynt6c xj8+*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 magnet g8hb 2ts h*m71um-fbfic 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 hydrogen 9 etdx8 x)8pu5m,sckais 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 (m sa.aby6k*qd +ji d5because

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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 mk du7(gvv37 zoass number of 14 and atomic number 6 has how many protonsv kd z3v77u(go?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomi;d3q iikp.ak7e f g 2im:,9ikic mass number of 14 and atomic number 6 has how many neutronsk3:pg29i k7eii a ,fik.qidm ;?

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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 forn70ti ox/2bs5qghol( calcium 39 are 20 and 39, respectively. How many nucleons are in onti0oq7oslh g(/ b 52nxe 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 andhb3xo:9*) 8 *za 8etelir xnan mass number for calcium 39 are 20 and 39, respectively. How 9zt*n8 ar ln)bo 83exeh:xi* amany 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, respecm5-l48wo(( jgcb vcvl tively. How many proto5 v8wv(gc(lmbclo4j -ns 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, respecty +mw9tijids9 0(m7dtively. How many neutrons are i0+dw7(i m ydi9stt9jmn 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 w7alg vozf085z2)h ms number 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 nuclelei,( 3bah de6us?

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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 isotope pfsdh-fd 9or;, k1-y+vfl2zd 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 paun.nh --gl -cwz8 -t$^4He$.

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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 he3vjrv;411vz nfdy* 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 gvg/.hx+ u(g ifwk:e9 through alpha decay. Its atomic number is : eg .fwuxghv/ +(i9gknow

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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 deh t4xx;jky21v )b,wxecay, what are the number of proto4b;wt h exyj,vx21)kxns 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 d8ys/o fe); ua/ntuy d;ecays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if c/e8;ou;/fu)yys atn darbon-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 undergtuf7.h i ig()dtq z-5voes $b-$ 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 d9c*4i(ue;c l vhqb m7-y yhc(material is 45 years, how much will be left after 100 yearsu (4h9bhcdy;l c7*c- y(ivmeq?

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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 ayb5m+1)awh y2lva 2t7zwu;- gr sb.q rn atom will decay this year if its half-life is 247 yt qm +h b2guryz1b.ay2 r;wswva) 7l5-ears?

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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 ceim cayu)h f,6w/v 33fvrtified 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. xkkx cb3m;.7l What fraction of the sample is left after 40.3l ;bckm7xxk 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 io82 ig:guz g8ufqp5lu 0dine nuclei are ne82 lg8u0: u pu5qgigfzcessary 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 3la,cmj1qb3 ,(tf dsz -.0 days has an initial activity of 1 j,atdb qmlfsz,(c3-$0.24 \; Ci$. 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)itow9r db mvv;vyjru:/o9( 1 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 minut:1 v/9r vt vu;dwbri)oo(9ymje. 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 taa6o)dbl ij 9aus-o9q )6v1dg0ern,:yivm * aike $4.0 \times 10^{20} \; atoms$ 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 .j;s athchp 0cy,+ 3ld6)fm 18fxem bka $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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