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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 part9p4v7xvhf:,p oere 6c icles 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 p p:x1pr 9c2(cnokda(pk6 u- vis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistsxp bc 2n:j;4xh 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 num5q f5dp9a3,5xo vyyc kber is determined 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 tl sy+65r+jhrdj; rww.+ y fvd)he 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 mase. -m 7)t;zvlziegk7b m9w l4rs by A, and its neutron number byt7rl.4eew-vzz b;g 97m lk)im 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 emitted f(+fgni.ah(;c+s9m yb wcxo )yrom an unstable nucleus, the atomic mass number of the nucl 9 f+icgh.(yw+x sbmnoc)y;a(eus

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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 wj6waj/wnf 95is

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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 ok,l.)nl o3gwf:wm*ty7 ez,vh f 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 numbershq-*pti*gvt ca:c) .p of neutrons are refehqv-it ac:p. pc**gt) rred 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 wito76;0jcxm3 hyygaa h/h

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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 defined75:nafg+gzsj ih(fy.:gft4o 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 neutrons, the totalil,q )sxj+s4ybt 5yfah)m5 .l mass of a stable nucley, h4)j ll) byq.i5xsa+tfsm 5us 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 stabj;n5 fpocqqqeh+znpbuk8.51 .q 30ewle 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 contripmp3 5fv/n a3n k5umr.buted 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 perbhlnm 5pynp . +v5lm u7ey5c(7 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 nuixz1xj( t d.hw+ 36jnc rue98ccleon

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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 h le37k 3:vfuhs4v, qsnuclear 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 fyl p.h8yxu(jjssa / -ju97k8r orce between adjacent protons in a nucleus ua xu8y( k/jjj7 .slrp89-h ysis

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrabaus :kc48s k5yvf/d/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 penetrat ds6uk;rg t: z69wpse-+gv:0we cna0le

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet * .z5tfbrr*mnrate

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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 als ly p2d w2azv0)eni l5xgp3//oo 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 khu((qbyo y e58nown 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 q kczwk gw3fdp,onxj 1b21 2b3ypj,*i)w+ yb6be 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 myniw(u,xr p:i;v /e 65 xhf:caass 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 atu:xmog*zfi k1u5 ; 0j7kb3dsc omic mass number o u1dxc ob*0i3k su;jfz5:7mkgf 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 particle is emaqf//dnh*2 a.spnx p r n.v--eitted from an unstable nucleus, the atomic number of the rqfsa* ednax/p -2-. nhpvn./ 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 f6ic- yf/lvf: - 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 nearly the same as a gamma ray?qi)vo .3 9x9qlvfc5:c q:zqnj

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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 unstabs*h3;owv i rx7kuwu/8:x9 e45b clybzle 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 zlodul9 wuln104)1f rmost 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 additiod s3+t cts8xs/n to electric charge, energy, and momentum?d+/ssts8xtc 3

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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 radejyid4vm:5gmml)) , wioactive 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 often used. This nucleus es5tc4n-4vbhu +ys1 qm mits a single beta particle when it decays. When this happens, the resulting nucleu s4 ht14+nsv -yqcumb5s 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 usf g.5, ,u0e/vcan4p jid0 kaxdes 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 hydrogen q5clsvkr m )+az+xg,eoc68a du 684xris 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 beenue2 fu/ 4b7xia replaced 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 mass number of 14 and atomic nuvj89n v +cqf0gmber 6 has how many protonsfj 0vcgv8qn+9 ?

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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 ni pkup.)y+m;5f(pjzg(-u wr oumber 6 has how many neutrons?p) wr-5jp;kypuf(u+gz om. i(

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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 masg8ep;k0zhfy r:s q 8pl5gny*t *+2y/yn4cbz ss number for calcium 39 are 20 and 39, respectively. How mann :chy25/zgs+betyny4 lkgqp 88z*s* prf ;0yy 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.z :49 x7cia4bpajs ft and 39, respectively. How many electrstzfi ap4 .a7x: 4j9cbons 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 number for calcium 396 khw,8mlrm i. *ksyv1iia0z * are 20 and 39, respectively. How many protons are in *w.amkh8 , 61il0sryi zkmv*ione 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 204a0lj :3 yvyc0mf* kju and 39, respectively. How many neutrons yjfj*:v03c 4u0alk ymare 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 a1)lq y-wzii+ of protons, 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 exyks3a3/tqrf/: n xo+1c( jonucleus?

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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 number 32,mkxs7.bit5hc 7qk q*w-z6+hwn,:f9 + iv oxyo

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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 o+.2 xmg1 wp. yrqruichjg4; s;f $^4He$.

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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:9(rhse216w+ p kali4qp ugud 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 qh5)e9w;f sh4;qkivd through alpha decay. Its atomic number is nowi; 5qkhesw9;) f4vqd h

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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;yv y,v5upg7k it undergoes alpha decay, what are the number of protons and neutrons, r,ypyvu5 7; gkvespectively, 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 to8:h5y zq lot99vchf8j a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a ma vz:5fqt o8c9y8jlh h9ss 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 undergoes(cbr 2nvdf cplb cv0*3 zd.u18,ol1 eb $b-$ 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, how8xk86xy0ruo gu0p my(j(9w fkir4 ss8 much will be left after 100 years 60ruxyo8 yx ( 9 80pkws8f4(rkugmijs?

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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 l4lio9ur, c12wp 0cni8u :qpvatom will decay this year if its half-life is 247 yealn pqo v 4r,c uilc9p0u12:w8irs?

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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 at5idn ux+d(i:x bg3j h3 $10 \; \mu Ci$ 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 sampleq6,q ldnb;e0 h has a half-life of 10 min. What fraction of the sample is left after 40 min?d nb; q6,h0elq

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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 manycdjx hsx *hl+*9zg a83 iodine nuclei are necessary8x9g+j ax*h3hc sl z*d 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-lif *-n d*cmh*ynce of 3.0 days has an initial activity of -mh*ndn cc**y$0.24 \; Ci$. 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 inx oya)ti vp(,4 a piece of a wooden casket from an ancient burial site was found to produce 20 counts perv),iaytx4o p ( 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 takef 7 1qpzi*l18z.ld6mpadk xk7 $4.0 \times 10^{20} \; atoms$ 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 p90e7hgm 7ehcn9 tps9a $4.5 \; Ci$ 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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