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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 h4,fq0ku)f/ajvo;, b 0c ti-i yao m,kqas 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 zq2 m++qy 3s4vdxgt,p,gff ;l64 qq ftis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus v2fh7 kwevttd* dycn2za*a zn* b72pg*/3 vv ;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 determined by thebb 5oe(1hot1 c 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 determin/kb2kz*xz4np ed 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 i xy/:r:1/a 0i atfewpkts neutron number by N, which of the followinkr:/fa x0eiw:/1 p tyag 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 nutd g xb;p(yo;o:*a qz x;s:pw6cleus, the atomic mass number of the npdyg ;s bt*zoxpaqw:;6 :;xo(ucleus

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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 i6 ujcsw3.fvfem:y1en.m clji w:j 5 +,n 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 +),h3j:fb d zqkqdwj8 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 num1 +guhz( oztq/f4ua, kbers of neutrons are referredg(u+1u ,a zhfo4/ ktqz 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 have nuclei wir7 t3mprh oz).prnirgq6i7u) j e4:dqlpb),/th

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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 bqi pkog98co )1 mm-dkwc6/b+ is 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 protonscz*pb)d /*o g7l/cbdmy3 wvq/ and neutrons, the total mass of a *3*dvd/ cbcz // p q7wolg)bymstable 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 nucleus, energyk)u o ,0vthfb/g1kgn : 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 n 9 fe,k8w:1 )c7xqqyuhq6czwrucleus 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 nucleon i ;-a9p,6wicl7hf tegks

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy p 2j uuj-(vgn*ner 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 concerning the0;eiue+lr jd9u .3 nss 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 foryh - 3y9md,ntjce, the nuclear force between adjacent protons in a nucleus i dth39-my, jnys

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetra(awxx-nl7pz 0 te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrd.gacm.7tp m ;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 penetrate;-gzeatbx+ac*j a6q3

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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 as4 fv2 , .fli 1d qcigkg6oib;y/ive(q7

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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 aklki( a+b-)vj s

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle wifva3h -7kpd x u h2ez6jpv+0,jll 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 atomic lai2zd8(tn w. 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 unstable nucleus, the atomic )pwp7nrn ,hs)mass number ofw) ,p7 pshrn)n 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 partic1t4da (c79y nwov7 arvle is emitted from an unstable nucleus, the atomic number of thrv a7 vcno1y(wa d749te 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 represenswyp/1y/ rm0vts

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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 ucfl+2 6c g 8+;zf8ggxvihk5ja 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 nucl-h9yg/i sg j.aeus,

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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 mass?o ;)fkhvk*fn*gf/7i t

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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 valusz4xp j av6 *66tyfvm8e is conserved in addition to electric charge, energy, and mome6syp v4j6 tz*6vxm8fantum?

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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 ol dfqasqnv9v-5e :i* e7bq +o4f 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 oftex 4 z4ds3f0- 9ddtunppn used. This nucleus emits a single beta particle when it decays. When this hau nx0p9df4z3td 4p sd-ppens, 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 charged ;cicme kc.c3q+r +,* clh7v ucua63ygparticles 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 hydrogenz* 08 f8k7gk ffbfw:su 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 repla yd2,kjj)vypt c6w9beue ;m19ced 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 atomia; :bac;jpesu i7l-(b, .esorc mass number of 14 and atomic number 6 has how many protons? abl ., s7rs-;poubaje :c(i;e

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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 h y) g5 +4qacwcpalp 2zlx38i(tow many neutroxp4 llwi2(c3qg zpy )a8+c5tans?

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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 mfym8v qdmy82f8a ij(5 ass number for calcium 39 are 20 and 39, respectively. How many nucleonfy8m 8vma(dy2j if 58qs 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, respec nck 5/-v,c6yrcb hev2tively. How many el k-vvhcc2/ce5r,6ybn ectrons 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 mp, niatdj++up* 0(qrmass number for calcium 39 are 20 and 39, respectively. How many protons dtajprm 0 n+pi+,q *(uare 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 zl.a)vd8z3hksi 5n*nj jj mj;0f n4f8mass number for calcium 39 are 20 and 39, respectively. How many neutrons are in one atom?4j3d ; l )j*0nznvj5z8ji .snhf8kfa m

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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, ne. y+eqq, rv(h(ane7uq 3ag bx2utrons, 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 car8tbv4b kv)9sj bon-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 hadlte+i o-)w8 aw:md2h4s il+ 5bss1zts 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 energy of 4, m jgt 2fabga6nwoyc6u7f, 6$^4He$.

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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 ts/yn9 tb2wrjhg-;1, o m md5oco 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 through alpha decay. Its atomic numbe5bh yw 48tvt;ko(m9p dct1 t4tr is vtc;t9tyo kbh484dt(twm5 1p 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 protons and 249 nucleons. If 9ri)jm*uzgie rt66 :eit undergoes alpha decay, what are the number of protons and n*ur j6 :i 6egi9tme)zreutrons, 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 nu3i7fltnx fxy -t.g73gcleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of gtt.f7x-f37g x l ni3y14.003242 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 numberd.qq8tiiv11h bq g k;*u j8:uv 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 yqn:3yu,:3 x 0 isnu hxuybb3;kears, how much will be left after 100 yearyku03xqbu x;i 33:bnhsyn ,: us?

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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 yv*y8l9)vf kd25 ohs(ebmxzz 4ear if its half-life is 247 year(8l*y e2zo)dkf z9vxb4vsh 5ms?

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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 b5 rzb6 kwgj 57zla.4r: xefx2certified 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-;caq ov*, :jxxo-j 2rgna q)6glife of 10 min. What fraction of the sample is left after ;jj gxc:ag* x,)anqo or2-6qv 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 iodia/ :q.ebkog0ymv- h s2 wct*5sne nuclei are necessary to produce an activit-oewv. 2sk*a/ s5mhb:qcgty 0 y 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 au m3ek0) 4nefs half-life of 3.0 days has an initial activity of unk s)034m eef$0.24 \; Ci$. 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/j,/tps1fidi pz5 n)r 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 minute. The half-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age oft,rf/ 5z p)isji1 npd/ 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 v*wh 3apa8+w esfo+wf9fn;0u$4.0 \times 10^{20} \; atoms$ 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,efrfj p -as lz1q-4y(r4qqs5 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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