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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 particlpx+2.r t*nr hhe+d:ypzty3d.es 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 ich5vt-awxx8emq7 vq3 o. q 94is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus convwm1(zgu.25:hkr g g puuy6 f,2w ;jnrsists 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 detefuhke +c y65z 1u5vg/krmined 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 thed kxv6+l1y 6 jzv/y4yg 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 b8kjtp,s lm 0v;y Z, its atomic mass by A, and its neutron number by N, whicmsp v j0;,tlk8h 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 fkq ;5- pg-pp + c ooisy4-r4cl;i4ldanumber of the nucli;k+-opl 4- lcf 5;icgdap4 p4- sryoqeus

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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 an atom o 1a n0i4wr;ymj* 3gevn3lsqs:;/qclis

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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 d e2 :kb u7njh2ql5kr504lltra 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 difve/ ib khy(p(6tj4;cp ferent numbers of neutrons are referv;p/jtc( 6 b epk(h4yired 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 f mrtr*g xy-;:7xif u/k 8bn6ez)tjn1th

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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 define5yh/,l e7kjo r 53n7n no/nhmnd 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 7ul-o io6s.usneutrons, the total mass of a stable nucleus is alw.o7ui6s olsu- ays

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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 stajrz.08 u:xd4c31a h tr+ xoj*brs1rqyble 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 /y ngq8wy,a3 ris 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 nucleln8 ckrnefc 3c +p,exl.( p12hon 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 nu . tmqx,nvta9(jm;j 9bcleon

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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 is(l2d(0y,olpofkl r/k 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 a ,jbowylc*m og*we2-4djacent protons in -2mo*, yl obe4w*cjwga 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 penetraopn *i-s t9sw 5sy-3zbte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratm lasv(o4pt 7(e

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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 *pj4klhy b:vfp1jc 4/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 kpct ,t2x/vbs d( ik27anown 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 a4p::(j9ic53 gnhcm/8kvvzc(xbp bvhs

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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 fff cy9n*zva3f8ux1awa.us6sw d,7h9 bf 7e- 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 mass2wv c5gdr)x xk2s5vi1s; 7voy 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 mass nun dh xptx1n0 e49k s29w62gwswla( xg0mber of thehxxpn l0w6 e0412gt2 (9sk agnsw xdw9 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 unse*ud*flqb *2s table nucleus, the atomic number of the nucleueqf*d*u*ls b2 s

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - 7 9(r,rmtkqims. ng /o st.6hhl4+bre MY - Ma) 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 nearlyn,f*fkdki r n0d6v 0d0 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 emitted from an jrizh5 hf)7)2y dlv:bunstable 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 mo)x63nr1(q+xs8syn( f tulj yist 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, whsjmlphrwj2u6:xk(cg ialb7 :5) u, -cat value is conserved in addition to electric charge, energyicuj r:m s2:l)7lp,-hbjwkx g6 ac5(u, 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 s:g;yyg.q9jx s-k o me* yd*-e7ww4mogr26onmubstance 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 nucle uz.,b wogpq7petfb123 x1at3us emits a single beta paab1zowb32 3.t efqp,7gp t 1uxrticle when it decays. 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 thvr k.wd o+ y53sjrsp69at 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 uses liquid hyd*myq m0s6 gg7(scunm0rogen 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 chambers 8c 7l(8nxb6at zasu-xbecause

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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 ntt-i o. 3-ge2sdoki+ftp8)f 5 xo:rknumber 6 has how many protonsi3 -psi8. f dretokf)kog 5t+to2xn: -?

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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 a*t,-qs-r,ta4im/gcw q4ue d x + hr1q xg8*fyqtomic number 6 has how many neutronfreh,srggu ttq c aw84y+d q,m-q*q-* /4xx1is?

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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 calcsnoh x 1u.1wk4ium 39 are 20 and 39, respectively. Hnkx1h1 u 4o.wsow many nucleons 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, respectively,nhih*6a- abj. How many electrons are in one atomhj- , aha*6bin?

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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 wug6b 6w.e s ;;.6 wstqqw(opmare 20 and 39, respectively. How mw ts6 muqpbow6 .sqw6ew(;;g.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 and mass number for calcium 39 (lae qyx/nrzx, k 7*9* ra3wbjare 20 and 39, respectively. How many 9(e 7ajrwxy/ zq*3nlxr *b,k aneutrons 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 protorhfk:8xgh c.gfl.w1 :ns, 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 wd; 5ii /:jdp4-kqyf gnucleus?

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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 ha,+ d/v9 npdj-w0cnexn255o6fx5 bfkfky /cfr s 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 of1zx,6fffh 1 9 jg) eiet: +edt4l*shonm*p9sx $^4He$.

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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 on k1ov fqtgt(r.2p3 sc7 p;)g1p+vqydk e 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. g+.,k4iw t.yzzm b2cg nu :lb)Its atomic number is nl .w,i .):b yk 4ggu+zmbnzt2cow

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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 unde0bv xcik 2jcwrdm1x 6/ g+ey2 m(*o4lprgoes alpha decay, what are tloxme+ x mrc1g4p/2bvj y2dck 6( *0wihe number 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 nucleus by beta decay. How much etomup/5 s y1mm6o;4fw nergy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-1/ 5m1ofmu 6;mw4ts poy4 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 atomicng*+dqiv p 1 x9auv;,z number 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 years, how ikaib38tf: lp1gy,k. much will be left after 100 year8g.la ki13 ,fk itpby:s?

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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*qx2d ky5ky1j /gkg6 28ouwkg-life is 24726wk 1g*gyjdu5x8kyq k2k/ g o years?

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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 cer40znph :v09efcmh v :ctified 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 10 m/jx4zvc-q ( fnin. What fraction of the sample is left after 40 -n/jcz4fqx v(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 iodine nz +,nsdh smo-5uclei are necessary to producn so-,d+z5hsme 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 has an 81 f jav jmo3vp*-l:rbinitial activity of bmr*joa vp-l8 j:3v 1f$0.24 \; Ci$. 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-1*b5: jr,jtl hc4 measured in 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 countlb5t j*j,c:rhs 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 taxuea0 dlh8hg*p*.v 8i ke $4.0 \times 10^{20} \; atoms$ 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 +2 h9xfr zfee;sbu2g24twav8x- 4c cha $4.5 \; Ci$ 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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