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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 least mass c7v d- zh-usiu/vrin:kl(.+up)hp1f ?

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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 izag i8t p3*e2ys

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus con rl 70)4wyzsdod w( bz)*la.u/tm +sxgsists 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 determin.erhb,+( pwqved 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 dete-0:4ce eved fs+p(jb krmined 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 ismhn:hnnyld6).ngm7 ( given by Z, its atomic mass by A, and its neutron nu md:g(nm6h)ly7n.n hnmber by N, which of 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 emittwxbyas hs+5( eblrx z oyd39.;* ej0:ked from an unstable nucleus, the atomic mass number of the nucleuskw*d+jl ;: (x0oy5eye sxrh3z. ab9bs

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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 inkd. *8 v.mzrxf 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 s 3f06 w;vlj3p3ppooahtable 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 numbermc*,+dagjy)4it7xnwo8d 8n ns of neutrons are referred to 8)dmn*ytnca+ogn, w4x8jd i7 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 wi uxdoc0 8 ,a*xdfiz, f)zhxr18th

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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 defined t0b9v)xxa ws dd9r*+ ur:h*ke4kf 7o aas

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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 sep m9a 0bo: hclx/kh2* vym3bhi;arate protons and neutrons, the total mass of a stab yo;9m0cmhkvx/ lhba h3*2ib :le 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 nucleusnw,/qfotex8 vete : 34, 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 iso5fn-;tqp4dp, lz mebvb8a-3 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 y /y/f.takj b -9kei7cis

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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 nucle ee/k 6u00*;pvapkjvoon

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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 conce-b.tr s2 euue2;va 2uarning 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 4 eviq(h vo,lju1 h7l7rr/q (dnuclear force between adjacent protons i h(uh7rjqrdvvo4 ell qi17,/(n 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 penets v4m26 nk.lizrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrfd(zo4/;uq siate

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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:rda-/aj ,21 yhxydr(v7x wasv.+c ph

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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 alsolx)m/sboja(nqqsc ( k l, *5i* known 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 ksf/ ro, vb1q,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 attracted to /e c9oo14ol573t sf jnpzu6emop5t x7a

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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 atomqtf(75y*njk 8 2wi cbs6lj 7msic 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:)to r5 vg;lt: z11 gtgt2usnj nucleus, the atomic mass number of the ; gv tggto5sutlr:1zntj1:)2 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 unstabxuwf2lvn.*- 7h4u 7) r+my0tv ihctxg le nucleus, the atomic number of the nucle+wgu t )ucfni7 h.2y0x74mvh vrtl- *xus

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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 - Manzy,fu8 c9)++gvm0llxvk ne( ) 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 rw.q*-bz 0-z q,mrmtq bay?

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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 ujy z 5fq *k;2:hi ezwl(80l(ml urarw3nstable 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 tcyjxr gi4 ;(q b4m7tc-d fs*+nhe most 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 valulnnqa . d)l)k7e is conserved in addition to electric charge, energyqd n)ak nl.7)l, 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 radioactive substance as iv nckvr +.bz52t 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, ca bo .hf(wisf.-rbon-14 is often used. This nucleus emits a single beta particle when it decays. W hffio-..b(ws hen this 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 tt :;e3y g0hsz2ypb 1gb;z bqv9hat uses a 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 u 4eyhk7 /,taxnses liquid hydrogen 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 chambe wlw -.se,prwr;l7k -nrs 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 atomic number 6 hnvnojre/07.c;x xd)las how many protons7.n/);cn0xer vxdloj ?

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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 hox (9lm: nyn g+c6iw+lpw many neutromcy9+p nx(6wg +lil:n 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 calc -cc .vp76toinium 39 are 20 and 39, respectively. How many nucleons arc6npcov7.ti -e 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 nume;m1 , kb,ijd0l vydl6ber for calcium 39 are 20 and 39, respectively. How many electrons ,6jm bl1d ;eiv0kyd,lare 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, qw5ri;wcp;x.m ,m 9q cq2sfzi,: cf7yrespectively. How many protons are in one a,9ic ipysxrm cf5m;:qw ,zc;fqw.q7 2tom?

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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, respectivelco lq4s+4pikp5 cn/m8fvy73 ry. Hsc y3 oq+im8cp4/rn5lv 7pf k4ow 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 number of protons, neutrons, ah;yw z 7i(q2pend 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 areep:f c qhi3kix26tb*8 there 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 1y5sxzsg:8f/ r5 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 enp xlu 1bb./d dka 4xsy2-j)a 2yoz8r/tergy 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 requtz 7a-(ca7f ci ;,t3elt-sm13xiscqmired 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 atomii,j 3swy4u, bic number 88 goes through alpha decay. Its atomic number is 4,i ,uywbij3 snow

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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 d;qs4tiedjy2a(p16*h7 .vytfm (hn js l5(lesecay, what are the numbe 2ajp.tlhq1fne*(es ysls7 d 5th;4vy((m i 6jr of protons 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 jt(xcpnii )g -j:hs6l(k*b:bnucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14bn) sch: g(6i:-b xpkljit(j*.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 underg.8); qeohg;dj wli2f d( qu*8d/clomhoes $b-$ 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 will2f:,s.9q-dk v6cvacbnmjw-x be left after 100 years?9 wjmnv a,:d scq6c2fbvk-x.-

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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 :,9 hp9rkyix g247 year k:x9h 9yi,rgps?

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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 a; c ya;gq i;ospywb4t/ ,b/i8tt $10 \; \mu Ci$ 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 mic8y rt.:g4gdn*y8 /rmapt*k ln. What fraction of the sample is left after tydy8m gcl48 *apt:*r .r/k ng40 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 iuot 7fksmjuho 2 0od05f,p:y *s 8.0 days. How many iodine nuclei are necessary to produhfkso ,:7 up0td 0*5 j2oyfomuce 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 ha(9k mqg5f(o ayrt 4s:kbjq91gs an initial activity of (9y4 qk(ggmqabf51r t9o sjk:$0.24 \; Ci$. 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 gglb:/p( 4 2j)mz ,*ksb plhnocasket 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 car,np/zo *mb(jl sbhg p:2g )4lkbon-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 takzzkxn/ ky2t k 5,f9g4ce $4.0 \times 10^{20} \; atoms$ 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 takp7dr a1o: mem5v8, ltze 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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