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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 has0 +iwfwq2u 0.p gcw3ork- h-zp 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 izdcn(my/ j9t 3s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistzf )5tu gr-q-(ggkumhy 9dws9 f2q1r;s 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 the numbe wl /dyfesi +fn2q+15rn bf 2vx)(0aulr 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 determinedif: 8y*ugvk w. 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 ,lmzc e1 uwsjqn: v2zdfq,(93by Z, its atomic mass by A, and its neutron number by N, which of the following iqlfuj2 (ve9w, zm s :n,1dz3qcs 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 nums2pyw,bmocc72 1 a3b zber of the nucleosbyp7 wbcz,ma312 c2us

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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 aj,e: 5mylk+sfj)u,g n)6fqxsn 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 nucleus because ode1 3v9v xjm/62hxai vf

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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 numbers of neu zjlzs n+g;i(k05oez(o7q0 uatrons are refe(7k( qs0 izjouzez ;g+o0ln5arred 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 wi:d m.0eaah; wvth

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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 w1;msn0k4mb fn x kix89 a0j5ias

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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, the tohkt9 2splgoj7z x511c tal mass of a stable nucleus is always z1xgkc7 l12jhst 95po

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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 nuerwl44 5usj s de8n-mt03laah0h)e7bcleus, 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 contribue7b(h 8ot4y*kw ah +yvted 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 ps gu5 8i/2kxrzer 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 nucleocd:v ljo *n2p9n

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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 fq .9w.tymfvnrjp58 d y .t0;ostatements concerning 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 nuclear force between adjajvf(,jnm n swoy v6(),cent protons in a nu)j wm (fnsv6vy,(oj,ncleus 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 penetratem i.py pd5u1kdqg 4)o*

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr,p vxe8u(4-q3u( vqgg5ki ojg 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 penetrat 6id;t szwz*t)e

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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 known3 01 ew+ cmk9qn(ddd6k*n9+j wayousz 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 asu4 5qe54*wd ekbo a(wm

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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 atdkio1ecj-)iv6b e4jm m )m/n/ tracted 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 mako wqva;sefi 4 hg/ v5wdf1+*8ss 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 particloa )qq0l9o wj*guc uol9tq8xuq -:6*ye is emitted from an unstable nucleus, the atomic mass number of the nucjq8l 9oou-o:x qa90 ) *ygq*w6u luqtcleus

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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 atomicf)5u; ror0qp0qiqy t3 number of the n rqfqiory5 ut3q)0;0p ucleus

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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 rex.y r:kpl4b/az -i 8xfpresents

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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 nea4+wq8lt y +rzxvnmz- 3z5hm,jrly the 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 7xaa; :yp,;y -5 lerrobgp 1rdemitted 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 mos,uo .p5bmq27e as hj(wt 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 valuhql3r/r m+ gy:e is conserved in addition to electric charge, energy, and momer/m 3rhlgq :y+ntum?

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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 sv14l:x y05 kzt.x*/d th wdecas 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 wfoh3ndk6 rh74:k5 uv(xeib *emits a single beta particle when it decays. When this happens, the resulting nuhb u 5ok34dkiexn v76*frhw:(cleus 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 u/cte,s g7ma/ gses 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 uses ftz0 ;hs4u .2o50vj jhr0lewrn+u9aqliquid 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 replavv/bs3rk;)l cpf9/0fd jq ioy.q; -wb ced 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 atomic m enl;4jkmc;4-(dteg nass number of 14 and atomic number 6 has how many protonsjg44net-em ;( cdkn ;l?

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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 mq32t mfjk/i zh,+pij*any neutrons?z+pqkhj, jt *i2m 3fi/

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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 81 j)o4ko/dg-s2rs17cda3wdbshsnw are 20 and 39, respectively. How many nucleons are in one a/oddj41 sbr wd) -nswo 2ask3s7g1c 8htom?

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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, respectively. H.ua gj+0rd5ye 1jjlwt;b j00bow many electrons are in one atjbabul wj10yt;j00jg.d +re5 om?

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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,yjx0erxq /nz*tkbf(;n u )2ed; u i+b calcium 39 are 20 and 39, respectively. How meu ;b;ind u)0fq/2,nrx +zt (x jey*bkany 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 and mass number for calcium 39 are 20 and 39, respectively. vev 4z/du 1lf92ei9 uf(w0gxm How many neutro/i9e (f0l2 v4few9u1v dxg zmuns 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,lk7mo,avjq; 5xl+zy(eusn. 5 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 nucleus?a*.dvld+stu i 0 bv;-w7qwd 0n

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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 isoto*s x4z1tcsa5x j) +q5dn,nlf mpe 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 03 (af(gkm1q 0u* khliitm) fzenergy 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 r u,l :,data.-w nuks+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 2z8xsjk,mco-hk b(.m i 6uwq;number 88 goes through alpha decay. Its atomic number is6o,kzmw ;8j kum-sb2.h(c iq x 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 it undergoes alpha decay, what azop 7wih ).lf0drz 0-wre the number fdh-w0pzz o) iw rl.70of 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 nucleue4m:;* u xdcodjugs7(s by beta decay. How much energy (in MeV) is released if carbon-14 hu*(;x: d 4ejom ucd7sgas 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 underal5 cd6w. r,wox f(zroa *u::ggoes $b-$ 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 d21bs2k6jtys9go52hdp yet62ywuc9 aii-u- , how much will be left after 100 years2u6i ec16s5 y -op22hdk2ga-jiybt9tuy9 wds?

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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 wpz g3t.ee4 n0hill decay this year if its half-life is 247 years? t.en g3z0hp4e

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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 certificp 7nmxrbw2kzlt 5*;l/am:d 7 ed 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 10hn41j cru(j *yw9 kt3*,uv kvz min. What fraction of the sample is left after 40 mi yh,3uv(1nk4rv*9twc*u j zjkn?

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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 dayw/ zbubqez.mdh / 7-t )d)i1b-ah/eb as. How many iodine nuclei are necessary to produce an activiwmu)bzd-a hebbthq d/ /ez7 b1)i./a-ty 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 initial a0u ;jnxis: o0n3,jkgqctivity of ;,nkq0on u3i 0jj:gx 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 picn.6pci5 dj ).jgewt1ece of a wooden casket from an ancient bur16 ptcne)di .cw5 j.jgial 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 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 takeg+p2gsl4*wd s $4.0 \times 10^{20} \; atoms$ 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 a w k1sj/iml(w.dkacz0;f / 0gxgq3fa6$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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