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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 phxxql:hs:8;j. 2bxi6e xd 5;jva: lt yarticles 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 yk b.:gs;d8n88xl dkaqgz++ n is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists ,l n: 7vpw89yzk(tm kyof

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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 detertxr8ws4 8gs/fa v 2,/sywr+sw mined 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 ispqni*ozme7t8ffn ss: 1k;q: 7 determined 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 by Z, it -z*k*mx g/jees atomic mass by A, and its neutron number by N, which of the fozxj e*-/gk *mellowing 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 masszfl)-w bqadkeg8ie140x3g / d number of the nudkdxiz/0 -e aq)gg f14e 3l8wbcleus

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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 a3uqpwv*s2n 1 .jkes l5n 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 because7b -uwdy9oo qs1 j9u)b 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 numb- :li2wdgj*u+po /ii ;my5 dh g+,yazuer but with different numbers of neutrons are referred to - a pdhg+:u+lgy i/,d*w5my iio;2jzu 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 nucxc ntui500w: flei with

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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 vv6o3 ekz3 b0gy2znp.8 6nh 3bohox8sdefined 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, l6gowz0 /z5 vzd f1s1uah2,f lthe total mass of a stable nl 1z dlfhw60 asof2vz /uz51g,ucleus 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 nucjsdj:4 cz64 hhleus, 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 contributxejj(nx . c21f xr**okj8l( hp71bo wxed 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 la;aba( (-vwe +h) gkknucleon 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 t.o(mfu,iar 0nucleon

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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 nuclearm,.) giyfqn)m79 njjs vcai-9 l;9 knx 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 nuclearge7kx 9;uey -j force between adjacent protons in a nucleusk j gx;ee9yu-7 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 penetrate(0lssl8gcz* e

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratq,tklz1 m3i :xmp e/h3e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratyxr,c 0q ,oct5e

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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 known a ,vislu)73q aas

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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 know d7 c9u, 3t,g9qw/lhbgod+ 2q (yhscqan 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 attractehlv*6h8l0r*ae v2-eb kfr; zl d 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 eqepr- ; lm, .s2nbh* m/uflbp,aual 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 fro.uuv hr pmuq0r2b-1hnye/ y- 3au b61wm an unstable nucleus, the atomic mass numbeu ha--.h /0y2nym1bwe 3pb 1vrqur6u ur of 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 emitted f:zhmze;u/-p xdf )kp*rom an unstable nucleus, the atomic number of the d)pfp/*kmz xhu- :ez; 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 - Ma) x 931.5 rep 0h.m )usmc3/o+mrjlvj6 p)bsresents

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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 gammawx7a-lxyq4bm d r2g3 4 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 z xm. vv1z ngtv y096n8b4bv/kan 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 ther1w7mlmhq;x q9*( eaw 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, whl7xvm 4) +cpwtxz)9n )u*6 syh taxi8mat value is conserved in addition to electric charge, energy, npx6ih7)zxvutl wmac t8 *y49xms))+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 oj)bc3 kce1u)be, qq )of a radioactive 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 emits agwap )llnyf+ :gw50 *z single beta particle when it dec*a)ypgww0+ f5n: llzgays. 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 field to cu: uepxq 8qxu,p,*+p igrve 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 uo4 0i+ x3gghfb6/8b9fihpv t4cvp6g lq s6ej 5ses 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 replacer)i934p/ bh; y sygjmid 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 number 6 ha,o;v bqs+u / rjymn8)n9 iqpp6s how many protonpj)+m 6yb v,nurs;qq8o9/npis?

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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 nzbl w14u8+qt+ah yl)u umber of 14 and atomic number 6 has how many neutrons?h+wql)8b1lz u4+aty u

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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, rey7x 38;hi5tcc7yxs w dspectively. How many nucleons are in one atxs85ydtwxc 73y 7i;chom?

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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 calciu.8b a6etmhy4z5yqeh-m 39 are 20 and 39, respectively. How many ee-t ayye8hb4.z 6hmq5 lectrons 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 39 are 20 aa6 /cgs5nnum)nd 39, respectively. How m5snu cm gan/)6any 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 anu) r z wi(jec,4+lfk1ppj5:gud 39, respectively. How many neutrons are in one atw)ir+p ,p5e(1 lc:k jfjzg uu4om?

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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 numbefjblti( 17o ;lr 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 nuclp*c.jw+ ucs/ ulx74ozz+vfy2 eus?

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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 haa8c0h/z.e: xjv( yd8r la64qcltgi2ys 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 x9bvqq1ait z((;fk; n;cewq g2p3ap+ 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 proton from 1izenvp d m10n1.az 8atjqg. ;$^9Be$?

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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 thj9td-bgud29f +).htz9neosvrough alpha decay. Its atomic number is nos-bv jo+.9tg2 tdd )hz99enu fw

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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 zn-jrkef-3m l0;z u1sm qlyji2, f c26alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucle lu qmlcjz sf2f-,6 0;j2ikrn-1 3eyzmus?

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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 nucleuqmp6tnx 4*zv euukg8)8f2g ,ps by beta decay. How much energy (in MeV) nm8k62,upt48pv)e gg qzx uf*is released if carbon-14 has 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 undergoeg34dv k:ggpn6 s $b-$ 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 h)urit6y:* xzui30hg material is 45 years, how much will be left after 100 years*)i6r xui z0hyg ht:3u?

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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 h c/oco5b wt63salf-life is 247 3tcb cwo56/os 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 certifizhsb vcw)34 9ied 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 of9xwi)9s3s xfcbza 2 -(cv0ijv 10 min. What fraction of the sample is left af s0f2)i3xsc jvzxb9(- ac9i vwter 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 radioac.p 1btedp5igp jf8 sr 2 ;x:3thz7+uqmtive iodine-137 is 8.0 days. How many iodine nuclei are necessa7j s 8 g.tmpeqt+p5;rfbxid1u 3p:z h2ry 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-liqm gikzan0 fg5cf-/s-1p du:3l r -/nbfe of 3.0 days has an initial activity of /u-qn-dgzf135rm:b0i a k-ngl f/psc$0.24 \; Ci$. 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 caq0 ,0 chqkw-kogn9*byrbon-14 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 counts per minute. The half-life of cany-k qcq ,ohwkb9 g*00rbon-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 qu*a9zn(zl ld8r 271bwfg1ev$4.0 \times 10^{20} \; atoms$ 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 i(m/+ ye4 i-pv3inkz ja $4.5 \; Ci$ 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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