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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 lzebg,z0/ w d.hrtdq /-east 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 ish ()z wulg,h,x

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consis4(qexdt,uz: rkz8bf (ts 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 numtur,pzqkp63l sjz01(9 hip- t ber 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 determ. tk.t 2yjdce6ined 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 jx5p8hh91 fhery 3/q q9rv a02d hq2ftZ, its atomic mass by A, and its neutron aht8pf1 /h5 q022q9x3jr9 vhd y qerhfnumber by 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 from 8kp9v3amai f vvf7*e)an unstable nucleus, the atomic mass number of the vip7f ea av3 *mk)9v8fnucleus

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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 inh7u8 q4)tnc hextw *t81ol,ll 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 lyj+a,b-* rplsize of 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 eu92at-d:teat* svl4number but with different numbers of neutrons are referreat2u e atl-s*9 4:tdved 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 witb1( 8hk3n jz eggr*ow677pcivh

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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 a:2huku/fs mu jl n7 25wcueo50s

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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 neutroe/eoox3jua b+5 e ;(;dgdvf y)ns, the total mass of a stable a5/;gvyjd)feo(+ox beed ;u3nucleus 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 nbw6txy 0p:qxix7g 5x 8ucleus, 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 contributdyb muxy3kpl;v 278j+ ed 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 nucln63scto lt nkd0 (7i;heon 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 o qewx4xu0c/i ,t89pc 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 f8yq/d j- *db22k eqyzmorce 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, the5b(vc5brita avi ,a7td/ s (x0 nuclear force between adjacent protons in at, bc(v/7t s b5dxia50 ria(va 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 penetrate)(qk5y5 3+mv.* ptodt jdszrh

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratex)2xxn/znq 2g

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrtyz: ,hj93kxs* ovg p:ate

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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 k m(lz 4 w -qt9bze:zeso3i1mv*nown 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 knowt4-y4d7ndv v 0rjf*ws .:eidrn 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 attracia(gb.(guo bb dd: j;)ted 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 atoigs(vuh lv0w7 jh6l(3mic mass 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, th3oahlwh4s *x1xn5a3r e atomic mass number of the nucleu*h5ax1wsn x lh343 oras

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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 unstable nu9u(n/ks tnc8c cleus, the atomic number of the c/uc8(9tnsnk 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 w(4 2fz (giq1r+qezbw931.5 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 l87(x o/x*v 2f1vs ggqf,iqxq nearly 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 unstable nucx 7x+hffy :t2lleus,

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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 most mass.kkliwj6 gjs-:70 xia;r swh q7; ez p6)v(aaz?

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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 akeea8 a; qus;1u:em0mddition to electric charge, energy, and momemkm ;eeuq:u a08a1 ;sentum?

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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 d/ pychfxl8own3r5 j/4ecays?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In radioactive dating, cayf5f*u.p np; krbon-14 is often used. This nucleus emits a single beta particle when it decays. When thiunf*y f .pp5;ks 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 particli (sgpyw js6/evv(pr dl8*8.tes 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 isx3g;hovvvj f64ox*b2 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 replad j +ka88ia0myl/siz7 ced 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 has ho))g tbqh,ijy,n/ss t 5id aak*gt -*t5w many protons?s*)n, gt)tihab i kgt-* t5q 5y/dajs,

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomil,mx8u0yrej +1buz,dgt65j rc mass number of 14 and atomic number 6 has how many neutronsmxjrzg6du 8, y j u+05,et1rbl?

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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 39,5in 4wv7* y5/pze .k,gjuph f lvaw4m jc5js,1 respectively. How muh,4 s jv5f5pvyw45.zi/k*w7 jmplneaj1 g,c any 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 mas2:8+ eb ukbknt,3wx:nl(lquj6 nbk +xs number for calcium 39 are 20 and 39, respectively. How +l(3xxb nk,t +bu nkw u:bej2n: 6lq8kmany electrons 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 are45kz;,e9a,) hj2.lsdmtlao zx kn ba- 20 and 39, respectively. How many protons are in one ;dt.9enla5o z ,2k ajl4kbxza,m-sh)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 m5 7q,,xdq1gd pi2 .9fcptfrvvass number for calcium 39 are 20 and 39, respectively. How many neutrontxv,dvpif,p2qdf.1gq c97r 5s 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 protons, neutrons, and electrons is maal/auu am:w0al( * ;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 carb gl0ouo)i-t,afg/k zt sdmjv.1/49 e2ti, yncon-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 masuwb.q9l:zi3ue t, mz+5 wg(eys 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-,yl5xcbk2r g-zcz +r 1kw3uu 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 req 1dyk )y) )ts 4al-bdf:3ihghjuired to 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 through alpha n;oyj.; b +2nh0akkdf decay. Its atomic number is +.hb 2fkka;;d 0nnyojnow

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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 nucl*w :sb4d0 exr; nwv)sgeons. If it undergoes alpha decay, what are the number of protons g 0wne*bx4w ;s :v)srdand 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 qas+l)oy:6m vnhf7)*g6qt .wfpvb0lenergy (in MeV) is released if carbon-14 has a mass of 1.0+y l)gnqs p6hv6fftb : 7)a*vmq olw4.003242 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 atomicl65wubdd c9 c* 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 muchnmwl+*6.3s;raq .yh g eon vr6 will be left after 100 yearg6.nsny r6hmw o3aq+rle. ;*vs?

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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 yyo99u . zzzd7u9 i:o,p/a aamsear if its half-life is 24p7ys9ia o9oaz,9 . zuamdz:/u 7 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 cert ot(j+1 kyi+bo fxt sij175:gnified 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 10r:b/pt0 a c3qs min. What fraction of the sample is left after 40 maqc :3rp0bs/tin?

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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 i5 d2eby qn mojl8nxz7/6;:ljuodine-137 is 8.0 days. How many iodine nuclei are necessary nno: jl2xj5l mqeudb8zy;/76 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 of 3.0 days q7bio. u) m(rdw/tlb( h*j1mfhas an initial activity of j* (b).fm h7 ro b1midwtq/ul($0.24 \; Ci$. 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/,bf bu (t7frd 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 carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age of the artifact to be aboutf,t/ (rbu7bf d

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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 tagncp h(+in,: v+ 3q 70i)2 gnqzqwoi*nqiayg,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 skvuhw6(m.xkk33rm 9 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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总分:71分 及格:42.6分 时间:不限时
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