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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 particle6apc uk ,y2*lo fk* 4d82nnpg.xblrt9s 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 (6wa-u bi+;gv j ulwd)g wh lq+50wbg,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+a 5/w t- -3cxravpaic consists 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,9lea03x9rns+-pcie h xhze 3r 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 h81, op dr/w+,r)c uj/ddr khkis 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, its atomiak:k4 k-l 8xmdc mass by A, and its neutron number by N, which of the following is correct l4:m8xdka kk-?

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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 numbwtdwer7;i 0m6 m/oajk9w vq( 7er of the nucleu7i0md j6;wrwe(m9qtv/wkoa 7 s

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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 inpmip l 8+ 9w-+gz;gjgd an 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 ofk 8cqk. hj70vg

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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 diffe c7r;p :5x*r )oto(lppw4uf agrent numbers of neutrons are referred a4owr5gp ltx: )ruc7o ;*p(pfto 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 7un zhu igdj(i +8r(b3nuclei 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 defined asuw0t9 s+gw)cp1sa sj.

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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 prot lp(dzls d: o.mb+2ih4ons and neutrons, the total mass of a stable nucleus is d:bl +o2dh lsz( im.4palways

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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 nucle; yfz4m 6xv(ez57ty gzus, 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 nuv ds(c.gt y b07we-fnlet;) s4cleus is 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 per2x q6ac.;v ei*vhxz(j 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 nuh;m2n5 y;blic cleon

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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 - mf/4kkh0ej kj5 dsp2statements 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 electrostatb*o 41uish o.uic force, the nuclear force between adjacent protons in a nucle *4 ooi.bu1ushus 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 yx z-og-d btp;7q/7hzte

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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, z8f *rkmunf4 +zne+iate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrateu xw pnauwrsk1 pa6,ajx,.*(0

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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 xq43hp0s2wta 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 known aq xxpr)) wjd9,xhdyh:c /2dq6 s

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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 attracteijb vm9 s s8g80w;s3as y)9bqad 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 m6ij9gp(jea2bu4;(/ u r a2 t kd m0/bebcafez3ass 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 frj3 ek e vv*lxlx4)z,b)om an unstable nucleus, the atomic mass number of the 4elv x* k)e3vx)blj,znucleus

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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 k8f79f ck3pkjfrom an unstable nucleus, the atomic number of thec 7k8k 9ffkp3j 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 931.0 iqr6sb16;m f;onjwa:cy0rc5 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 samhr pu-/5zi0hi.k ;rl+v25q, 6eexkxqk qgd(a e 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 unstabled.(g )l,rxb tlez.m;70 ;a7mb bhr yjk 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/)l fat7 v( xn,yp)cd4ewqj n2t 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 dm )xq;m ba/bh,fp6 fs4q;3 yfmecay, what value is conserved in addition to electric charge, energybqa;hq;fp6sm f mb4yf,)m/ x3 , 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 sub .tdygtm,,mp(ntp j30stance 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 emits7iky*f3en y.. ltaj3s a single beta particle when it decays. When7a3 k ej.3t*ly.nsfy i 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 curve charged py69c,4n /a5pbxihj sv articles 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 hydrogenrqpl o*9c. o/ +xrxftc2/v *za 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 o0yf uyy2 /.vh1xx)x9xw:z ilby 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 massl(i 4fg5rrt8w number of 14 and atomic number 6 has how many proton l(tirrfg85 4ws?

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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 ofqck0,y nqjp,: 14 and atomic number 6 has how many neutronscqk0:q pjy,,n?

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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 numb;0 29n vefy- kunta(a-a,up yaer for calcium 39 are 20 and 39, respectively. How many nucleons are in ona- e29 0kpf-a(atn,;uuyan vye 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 3r r )0:cqh8 sj5a ztlqq2/ai2c9 are 20 and 39, respectively. How many electrons are in2l):20ij qah/ 5rszqrq8c tca 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 and 39, respectively. myeo 89 ;a9vpk awfne2-8:cvjHow many protons are in one cpva8ow:-;mekj v28y f9e9naatom?

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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. ivm o o 6n7h :5x,+gbr2;qunqeHow many neutrons areno ;5 2vnqrugi67qm +hb:,oxe 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, neutrons, and electrons .ev lkx-.pzp zxu(t;dn .:pd2is 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-/r4fu/s0-jxb. seo gcr x1g1 l14 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 number *jexugqs1t/.y d; o5r32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding energ/r/ydps3af/ogj p ,,ny 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 remn 141d(fzixpesh 2-tfc b6t8 kove 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 88at f*r)*u7da j goes through alpha decay. Its atomic number isduja)*t7ar *f 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 decayonkw+,4 *f ofy(tuzz/, what are the number of protons and neutrons, respectively, in the daughyf *unwko(,zo+z 4/tfter 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 nucl6br6l of78 ceueus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and ni6uc6 efo r7b8ltrogen-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 pkp(0 a/j6exgbuv); wkh9 2zx 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 mao1fz mm* *-7gve qj/xjg5k wo+terial is 45 years, how much will be left after 100 yearszok gvjf+o5 7wq1-gx*j/m m*e?

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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-life iso6 l/xz mn*i2ae67svq) jyoyv39yi6v 247 y 66ija*3qzmenloyv2o/ 7i x96 yvvsy)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 aat (yw g5;*malqai; u9t $10 \; \mu Ci$ 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 c5 olq5+z v1dthas a half-life of 10 min. What fraction of the sample is left after 40 mi1tcv+5ol5 q zdn?

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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 rvpc yy3m:s 43v;wpm 4,: oxhwnuclei are necessary to produce an activityop4w vys,y 4;::mrwvc hpxm33 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 augg s9v*-l .u5mn, mmoctivity of -9.gmm5ug m *vnlsu, o$0.24 \; Ci$. 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 wooden casket(r.9h6(r bo zl a.os93/+wdcwj umij g from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amount or9r 3 scg .bw6u9hjoamwd(+(.jzi l/ 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 ta 0cq+ cvbr0n* lt89l(uoivw,yke $4.0 \times 10^{20} \; atoms$ 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 tak os4oo ;3uqb9olu1 a4ue a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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