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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 le y8oyt71udb9y3ga; l dlb6 8pz8k ycu-ast 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 ,n,9roaydb h7rvak5pp ;;n :w 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 consirmw1neov6vk0nqb ; ,*sts 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 de3 fmfyes+zklh:h:2 .b7uj h7jtermined 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 numberr8q.ny q :53 htr p56vtk.xdlw is determined 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 h8vw-hkfz x;3 u)fgq)/euh/nrkm0c 3 by Z, its atomic mass by A, and its neutron number by N, which o/xuhrvfq)h;wnk 0 uck 8-m3)f 3h gez/f 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, thedp 3pnqsi *)-d atomic mass number of the nus qn *pip3d)-dcleus

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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 atomoaqdv 3ji n1m;m(1 f: qc*9s1 enjev+m 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 of jtwm(lzf t+g61f-r9y

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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 n vnht1 ys: ssng0*a.1fumber but with different numbers of neutrons are referred tnfas g:s1y1*.nhsv t 0o 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 nuybba) 6pjk l.tw:j7zy 1bfn.,6ty;; vkfy q o0clei 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 a hni.gwidh1g;1p( 0xis 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 separatxscv6b(x*8 7wm x cp5 00ecmeue protons and neutrons, the total mass of a stable nucleus iscxe5msucb cw v*e80 6(0x7mp x 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 nucleus, en0+*kjmoo1n rfergy 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 .nhlf n3c+ )+v q2xwe*j)hnyo a nucleus 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 per1 *l2jm9 uii zs.x7mgk 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 nucleogero f3-u,8rhn

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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 force is falseya mu 6m-2sd-a k61bvh?

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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, thz t j69g ons 5og4d8()clfcnj1e nuclear force between adjacent protons in 4 8 tdnzjfg6(jo5oc1clg ns)9 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 penetrq 3zcie m588prate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrattl9hpe)z7zs7r /mpe8a1zy + 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 penetraxncab *c wj3j;8+/ozete

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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 g7py. e7ox0gu 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 aswy0*t h 9*v7ouycgu5o

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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 attra;ytpm+l 73vxd cted 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 jhf2m6lx;easivi1x(5)5(j qs pr 9xgmass 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 unsta7ll*h),s-m ymfr ajo*- n8tchble nucleus, the atomic mass number of t8,fronl )-yh s*mm*hjt la7-c he 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 nucleus, the atomic numberbhc11,(bkcjm7t e6 sd of the nut,c e bjm1(hsdck7 b61cleus

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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 - wi5bm-+ mxc7l 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 same as a gamma ra(pb+un+ pg+8qx.;fwre 7 ;sj+ewg qyb y?

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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 nucle5zp/iek3y x1k0mft5aus,

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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 o+ bd lnfz6p))xd,*rqr( grc1most 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 addition tl ctlt/,dni /2o electric charge,l /t2lidt/,n c 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 radioactdxtein 5ety-: b.,*ifive 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 s w209, k)tfoklya- p1qj :8 ezicb,ysnucleus emits a single beta particle when it decays. When this happens, the resulting nuc)yi0 ytbk1o2w: lp8s 9 js,zka,ceqf-leus 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 charged p-*zbs9op ixnqn; vdod/9 1ni0articles 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 h6ioh,aph3 -8 fab pu-eydrogen 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 becausee d )+ph66tfqu

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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 n).oeksgu3n7f;bh -w q1a96e ojui fw9umber 6 has how many protons?)9 b7o31f owg-kshuu6q. 9wnaij ; fee

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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 ho6mn9ss--2;ew vlry y mw many neutron; y29mm -nwresv lys-6s?

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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*ue pzgv4f rrn3nu+ m**m;0hv 20 and 39, respectively. How many nuclemz3 0 m4u*;unr+vg*hfv rn*p eons 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 an jdol/6-d0lwwd mass number for calcium 39 are 20 and 39, respectively. How many electrons are in one atomo djw6l/ld-0w?

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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 arex:) scpy9x 12dh3*m2pjvz a ,6xtzuax 20 and 39, respectively. How many protons are in j taashy)pu*,132 xc zd2x:m6xp xvz9one 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 3eax zobp0 2*5ze 8i(ro9, respectively. How many neutronsoi8eo*eba5(rz 0 2p xz 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 number of propvz:z1a(43prh(b t2f3gty wk 0 dsbg,tons, 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 fx(wh2p ufw.0 qq;9kpnx:4o yin 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 isotope of mlm o3s,.rs 2ekup4x 6mass 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 ebu-w +xze,jx/py 1d8jnergy 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 rempxb 9qu2i1+dw ove 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 alpa.;3h ifakyke 9/nie2 ha decay. Its atomic number is nown2;fi/.akka9he ei 3y

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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 dfl8dega7 lqk f .:i*(undergoes alpha decay, what are the number of proton.e f:lidg7l (f*kd qa8s 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 nitrogen-14 nk8lnb+3ndqir+: wr9 q ucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass ofw+: 89bqdnr3ilr qn+k 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 atomi8 (5e ;-ws+ie+jeseitcbow p. c number 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 left aftequq. cw;:w1bpwf g.-g r 100 year:u-bp ;wqg c..wfg w1qs?

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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 its half-life is 5dm xun(w v .b.fvum60gc bo0/247 yeav v b.0 0wfmb(/uugm6xdon .c5rs?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wasyt6 zfqdczfe9:e0 5/ny;,bp a certified 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 samplesl, t d.*ex vb9j.sbc/ has a half-life of 10 min. What fraction of the sample is left after 40 mt . ,*blvsxd9jecb s./in?

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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 ibcu6:*ps 6*m w-0 vtr.ythiyivb95zz odine-137 is 8.0 days. How many iodine nuclei are necessar wt zchi pb69brmvts6. *0y-u5*izv y:y 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 initk.d0gmj k-4d jxl;pcr7 e3 0msial activity of cd0.3mdrg4pmk x j0 j-e;kl7 s$0.24 \; Ci$. 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 wooden casket from 7;+6tqrc5gll 8m; h+gkfuml f 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 estimate;fg6kgh 5q; mlur fl+m7l+8ct 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 take gck 2i8n +waj:$4.0 \times 10^{20} \; atoms$ 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 (z ppciahp r( vu9.8/f1 iyr yu29.3h1xhrnrs 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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