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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: 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 2hu)zmfr4g m (;kg3ih?

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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 icx3 dj3 hdc.;ss

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus considfc ck6n0g8 ohoe+69jsts 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 dejw+c+f4o9 i -tv*g jdltermined 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 bse j3kv* y5u-l/cz+c iy 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 its ne1k2t /xoh n.g2ai9 s3:luvdchutron number by N, x:hls 21v/g 32 nd9hk.a cuitowhich 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 emitted from an unstable nucleus, the atomic mass number of thnksdurv c-u 51 vv sqz36-(uqo,ohu 3-e nuccdsv-s3k6 vh-5ou(uuo q-1nzrqu,v 3leus

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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 u,eqm1lm6f2 ie3 if5 zan 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 v:w)0 + zc7 oj9bqz5;waehd jsbecause 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 azqd pr2v 9l0 :2h6bi* /nbtnaxtomic number but with different numbers of neutrons are referrazi9xrb:lq0* 2 2 vhn dn6p/bted 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 withkae,gyqogh- c.u0 mn-r), g p7i,p2xz

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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 isprx;i2kect/ fn; mu 62w5c2tn 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 boskl z ,2s*73oz b6jowr ;ie2t, li+qprotons and neutrons, the total mass of a stable nucleus is7,bwjq zok2iesr3 tlzs6oil ;, *2o+b 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 stj-bba-m zn524nrpz e lpk6m 4)able 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 contribute 3yyk(tj2xy74o +x jllogg( *sd 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 nura qf7rq1.u c1ge, pf -hia09ccleon 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 pe*c*nal*n+ jey;x z/thr 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 the nuclear force izbu/8 j-u oekij a ma3.-66bqfs 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 electhq:fwc(y.2j az/ enhu1i e7p/rostatic force, the nuclear force between adjacent protons in i12p. ynuew /hezc7q:jf/(haa 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 penetra* j7ds.fu2s4c a:gmn ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr5bm2u+ dkx7au 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 penetratejhk4;l2a vai h,c t-c*

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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 m 4ukq avl6 (q4baz0h2fok:*oknown 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 k -9o:fr9yicx6+ovnvwtl i+: 7d qxk:lnown 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 att39gw +2m,nobyhofml( racted 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 6ope4lq-gthu +-w7ws 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 s,rbhp)y*g 3c4 bh/nv2u,rlm is emitted from an unstable nucleus, the atomic mass number of b2v)brhnhy /4 m,u*g 3rp,slcthe 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 unstableifj o(0a1d6 v1i,dpga nucleus, the atomic number of the nuclo jf di(agd6ip10a, 1veus

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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 9h)jyfh;x5 9zyt )c55wmv m -hovd+qn 031.5 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 the93ihi2yhxf1x n4qy1 b 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 emitted from an unstable nucleus,6roa; brb 3z)tckx; u8

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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 mo7tz f a0 -e,a1tjkkybrg :a;x9st 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 t304: (gx.a*7 /kzrlg9v qln cuenryuzo electric charge, energy, and momentu z kl9g 0a4/rnz.cgn r7q(v:u 3lxeu*ym?

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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 it decayy rvftq (e gvl;8hb+r9ty2(t gx 2u4as w7h1h9s?

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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. 3kms,j w- g,d;mglmu2This nucleus emits a single beta particle when it decaysl mg-,; wmjudg 2k3s,m. When 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 that uses a magnetic fik/r64o v iuvcp*+gz7weld 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 liquid hydrogen ot5bicu p xg,.()r 5tfulc 76xis 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 repl3y-c5s607kjm qkxpj qaced 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 ml6eh4 d:/r1i gt cfpfg.( 9iqxass number of 14 and atomic number 6 has how many protons?c g4eff 1r.tq6 /9:hdpiigl(x

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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 nu ddskw0p0e(qw2;/rj z mber of 14 and atomic number 6 has how many neutrons(0/djzrekww q2sd ;p 0?

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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 20 and 39, respectgxls0 maii8 (n3 ha:q/kk* 8vqively. How many nucleoa(a :vginiqqk0km 3 h8s8l/x*ns 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, respective5jiun2lv,t y8r) jd2u8d tk 4ily. How many electnu)d2tdl v5824i,r8 jjt iuky rons 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 numbxkcc6 gwbi3lt)7:zdu,fk m, 6er for calcium 39 are 20 and 39, respectively. How many l:k fk iwtub z6 3x),g76,mcdcprotons 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 39axox5okhk h+ p5 :4l9a are 20 and 39, respectively. How many neutrons are ixx o+h5l:ap4okka 9h5n 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 wqd1kf5xp. m 9electrons 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 thereyvq6m q, 9pr)pt pg*+n 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 an isotope of mass numjfnn;:u/b jpuz*ls: a*dg8 5 bber 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 eneran0j): ee ygxbih-8r 3gy 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 remove one pr enjhfmj- y9 jd2,k x:39mhj9loton 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. Itc)kt*;acaa v s(nt2,os atomic number is now a( na)v2,t ac;cst*ko

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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 undergo n ,/xsi+2y.lc( /xif69 btlupdwwc-pes alpha decay, what are the number of protons 2(ind w sly bti,-c/.pxpw/c +lf6u 9xand 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 nucleus by beta decv b+d/:k7o5 ft ;n-tqkpxac5 vay. How much energy (in MeV) is released if carbon-14 has a mass of td-k:qp/v5 xb o7;tcv f+ k5na14.003242 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 numbe 0+ajn.j*+xaa lyy3 ayr 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 materiagmy d.9o6dk,8 y k u7znpn86)pintcs ;l is 45 years, how much will be left after 100 years?y,o k6s;9n 68gm.d )tnp7ip8z ykd nuc

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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 u 0 -ywnc1i+nurz- en*decay this year if its half-life is 247 yuc uznn-rw0 +e-iy1 n*ears?

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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 a2o3h 7yw8p jn (/3 a pc7qfas8ivxy2wet $10 \; \mu Ci$ 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 m g4ek, n6*-2 b7r fy8sx yyyrr,iua(twin. What fraction of the sample is leriy 4 tu8* f,nby,g xy6kw72y(-resraft 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. How many iodi98b*u )41brsf9p h q rcob4awcne nuclei are neces4o h9)bpa84 9c fu rrcb*ws1qbsary 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 offl85haf,uzcxy 8+ 9ay 3.0 days has an initial activity of +a 88a5l,u z yxfcf9hy$0.24 \; Ci$. 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 woodens f(6uy1*;)wjyrkmt v casket from an ancient burial site was found to pr 1tfm(w*; yvjru)ks6yoduce 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 take gt7rmjxn5c1 ($4.0 \times 10^{20} \; atoms$ 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 :w7tlf04 qcbka $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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总分:71分 及格:42.6分 时间:不限时
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当前第 题,此次习题练习共有 71 道题

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