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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 zr*xi(pmx6fwt8s )4i 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 isa( uh0gubkrul -f.-j +

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus+1kzp voh8a k* 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 determin6mn g)b zr; )g)ggrzb3ed 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 numb tfal(*bcfbm63+nqx 5er 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/g1n,,fuk jwl, and its neutron number by N, which of the followi g,u,wln1f/k jng 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 n1 -epdg8om( wcucleus, the atomic mass number of the -ocgmd81 ew(pnucleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protonsr ( fwl3hd9*fjo.ud1z in 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 size4 x; tq qcnrri0wc0(s7 )ut8mm 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 numbenqp jz.l cx qx8kp2+ 86k5pde9rs of neutrons are referred to asknedxz+86 lqp2 qcjk8p. 59xp

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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 hav10+ rpm iytfjrvt8f w, +1fuk(e 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 de-e n( 26nvvmwik.4zdg fined 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 neutrons, 8t5w pc3q/pfnthe total mass of a stable 5cq /8n3fptpwnucleus 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 sta(qp .s ,x 4 sgaw2+(pbtvpdnz/ble 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 contributed to/f.a*t2uivr)n 0l rjb..oi pk

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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 nubucn8w dz; )9fcleon 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 nucleux- ly66 shl,zon

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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 nuclearv9,b 5xnpj ,sc9dyum4 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 electmv:gs of 9.ew1rostatic force, the nuclear force between adjacent protons in:1smge9fow v . 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 penetrm1 pk;wxpmxh 43p5xj4ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrpwe ;jm -:7wm d+n5i1 uved6gzzkm+ t(ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate87k (nuofur r:/ad (aybp 5zi8

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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 alqg5 dpx*ka+3iuq6 v 0c2q9lzs

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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 kv-z+ c *.ijlblnown 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 attrww9;ssdi6c+lb bl *l(p*iv *0:uf wnsacted 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 mass 8v(;w5g9vbnx ffs gy fd- 2hw6equal 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 emitt34ik6),kv m8 b pszdp6ppvx;n ed from an unstable nucleus, the atomic mass numbk6 vvzs8 m,3)pp 4xb ;dni6kpper 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 un/ bhv okes1x1/stable nucleus, the atomic number ofe1/1k xo hv/bs the 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 931.5 r:h3hgwxm m : 2 hc2ima1-6booa mo1)joepresents

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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 gam(:kb1ps y dp/abwn0+ama 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 unstab+a2y.9y0gvq emxke.ale 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 mos t.2hedd4t kk7t 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 cont jx9. 7f35j2colic jyserved in addition to electric charge, 9t y7cjj.l32o5xfijc 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-lruy 2)9tbp*h bn2i(ox ife 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 eminex;: wezd0 (p7sp0si n: k9gkts a single beta particle when it decays. When this happens, ep0z7 nge(sdk;n sk0xp 9w::i 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 cha;w6fyz rkvx ;vhf83fz* , 0wmwrged 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 hydr ec3;fd dk 3f v6r/rxq2-sdtw/ogen 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 chamberscr2z 4 lpd/4uym-mp(u 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 atomisn) :t/wi/2xfi3d* u dc zy(cpc number 6 has how many proton:/ zidn * ts/wccy)u23 dfx(pis?

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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 manjsix,v8 6jh;cy neutroix8j,s cj6hv;ns?

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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-)o57ool5 : fysg z+f jl5e2no2dl nnl calcium 39 are 20 and 39, respectively. How many nucleons are inzeos yfo55n)n+dj-olo l 2 fl5:7 ng2l 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, respectgo tlrk e-b66m-, ;pisik2 a+gively. How many electrlg6 gk6 okpe 2;m,at-sr +ii-bons 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 fj tmrxpat9a0 yk 0e+--or calcium 39 are 20 and 39, respectively. How m-k-tptaj0my9e 0x +ar any 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 an:pxhe(tr * c y2,7la mlco;,s;zkb8eqd mass number for calcium 39 are 20 and 39, respectively. How many neutrons,xte28( l ;bys lk: apm*oc;hercq,7 z 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 protons, neutrons, and electrons11nyfe aco;.kr hl2(frb /)pu 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 t,zrd(tu9 t-gohtm5i1here 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 atomic number 15 has a klf1 e1pcu5u9n 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 bindin7(mhhf sph;c2 g energy 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 require m )nfl1hbn0q3d 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 88 gowhsrt5ywkj/( h -6phj;w+l- u sum;c(es through alpha decay. Its atomic number isp;km(6;wtwrh + -/u(j syc5sjh- huwl 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 protoyvnth 2k57iz 7ns and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respective7 k52 ztihy7nvly, 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 enejr 8ce gh9mmcc405* wdrg0m e5wjc *h48gdmr9cc y (in MeV) is released if carbon-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 fe tp o:p tkac,/*cv9)ap -d(v6nklt+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 dvk u +qjbzt*df* ls) 71tnp36material is 45 years, how much will be left after 100 years?sf **b qlkd +tn)6duv73zp t1j

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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 ih96mh s *e/8pvq cl;dkf its half-life is 247 years? / qdh8vs;pc6 9kleh*m

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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 n;iff8q0p rh +k sz2uc 2qx(,u$10 \; \mu Ci$ 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 miuii.z ;vz 2(n ar2a4gtn. What fraction of the sample is l;.z2tvia nar4g z2u(ieft 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. Hoc45t hd7qg 4gc5 jv0ujfi8.v mw many iodine nuclei are necessary to produce an activi tjd.u55 vgg0 chcf 4i7v48jqmty 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 hqy6-y( 4htl ug7wk*t faz59m oas an initial activity of 7woutzlgq6y54 ay 9*h( mt-f k$0.24 \; Ci$. 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 pfr .z4wkf2nbma 82x b,iece of a wooden casket from an ancient burial site was fza rbfmfb2.x42wk ,8n ound 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 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 takgf72s9 awyi) ne $4.0 \times 10^{20} \; atoms$ 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 auj7tfj/ ep( 8a21tr fg $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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