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习题练习:Physics Unit30: Nuclear Physics and Radioactivity



 作者: admin   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 particles has the least )/ou 3cs casv +bk2k3mddp( r1u01ipumass?

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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 isxkqpr ua yix3.)5t2 r8

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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 p:a5t i sw)tjgt,v; 9gv3ez *oof

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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 number o1be j y54kbc :m/.hpc9d/ravr f

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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 sx7l m6elf7q. is 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 toww)aat8v okj/;5wzl4 t+ y1number is given by Z, its atomic mass by A, and its neutron number by N, which of the following is correct?ktava w5tow+yj4t;o8 )w/zl1

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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 +w8k3agg t+: g-qsm tzunstable nucleus, the atomic mass number of the nwtq -+zas t+:m3g8gkg ucleus

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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 atomjyu+;0 g0sa ry 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 stab9o6ec*cab z9sc xf1s +le 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 numbereen5ikl :(3 3mbbhj9 tiv5f-f but with different numbers of neutrons are referred to asi (bt mb:3ki5vj9 f-flnhe3e5

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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 0j1kvech5 ha 5have nuclei 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 defi( -61fvpc( a2dz zvbwgned 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 ser cyl:-gah9 lvdw7 h-;parate protons and neutrons, the total mass of a st h :vhdgl cyla;--wr79able nucleus 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 stablo9lpi 3e0 fg fh2jc8yfcd:r0*e 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 nu3i 7u6p dcx(u9vdyn.k/7sbl+iba l - mcleus 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 per nucleoa gwj(l ;c+y 8i;tm5-u r7bdh*p irt*kn 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 rsh ei;7 w10evnucleon

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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 hew hi5 t5o-)rthe 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 electrostatic fv+0ha yb3o l9xorce, the nuclear force between adjacent protons in a 9lva+hxbo3 0y 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 penetrae0;c 224cgwdxvny: n ste

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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+yo* vzeq6lip sk2w5/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 penet9lvacomt p9u(.li,9gn n j +(urate

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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:d6ozttz a y rn94vkgyt f*;)7o 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 9pq rbmc;fpk6)b2e i-known 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 attracted to ag*0 u9cn 98(wdahcyro

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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 5u p wr 9++nc5pa;sps97dtj e.*nljloequal 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 unstah v)vi+gi( 7kable nucleus, the atomic mass number of thkhviv+a(7ig )e 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 unst )xwj0mwhj2/ii8hr -f able nucleus, the atomic number of the nuhf80jwx jhi-/)2wr imcleus

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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 9:qw3 fh8wb,(y ,ym xbopof,v-31.5 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 gkmc 4p5)6+wv)z h muqzamma 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 nutvde j ,j3 nqy+br2t9,cleus,

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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 mal ox6iy mu3(d. m7fr2gz.oyv(.x-v duss?

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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 valu(,87me jcl0e o fppzt(e is conserved in addition to electric chargeppfo (me8,e 0(7 tjczl, energy, 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 subsk bscdwu(*q 3.xq5j /otance 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. Tr9mzjx6s+wpp3vx:a ;s c d:;qhis nucleus emits a single beta particle when it decays. When this h6:+9 3p ;s:xdswvp jrx;qczmaappens, 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 n cj-1qi*zl 5cmagnetic 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 lu3mhh9ro+k61y s,0 lya1opzr iquid 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 replcpcg* .)0* n vyo h3)yb0hwjo(bkxac 3aced 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 how many proton/ gj z2lw9)zqtzdl2eu 2* h+vpv+)2 p9 z*22l ztz/ewhd ljqugs?

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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 atomi5 fy5cp *,,vr.)if2bsryvtly r1 obr-c number 6 has how many neutron ryyvrtrc v1.bp*b2y5i lr,ffs ,o)5- s?

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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,- dzh bg2jp3n and 39, respectively. How many nucleons are in o zg pdjb23-nh,ne 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 mas8ha o*0jouo4( y)rmy0sxpj i*s number for calcium 39 are 20 and 39, respectively. How many elecrmsyh(oi* y0 0 up8jxo)ajo*4trons 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 and 39, respectivenmt/u uc--))ed ozs+n. bwkr (ly. How many protons are in- czn(.-tsu)rk)oud/ +mb w ne 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 and 39, respectivel, fd 9y:mbsxwj4.- 0gsf(ilcg y. How many neuxg(wm j0,g . 49l:cs-iybfsf dtrons 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 electr 8dsdx4;yv7 uyons 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 cw8gmj2 ) 4ff /.5pwc dckyqv2in the carbon-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 isote6)wh*0m ewwag ca5 :tope 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 ener+; cjhcdsutup9ngwa31 0vy9 r0. yrg*gy 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 opw5wt 7 ds( 1ry-kky1qne 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. y5g *7iw;doxvy4 l(io8gki 3nIts atomic number is k(7x;5i 3 4 gydlwo8ivoigy*n 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 an8 as*sbc0vc 7xd 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nuclxcb sv7*as 8c0eus?

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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 mu*u )csa+ebp: vkj773ln 4c3o pexxpz; ch energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 abkvxoc 7*7z4pp3l3n+j es ) ; peux:cu?

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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 t /ma aw i0g(yrt5z+(i$b-$ 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 much will be u w( jiae(p:)/qa6khtleft after 100 yearj u:qptea6( /hika w()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 decaqwylh juf/4 d33/sd2in9 k 5qay this year if its half-life is 247 years/ /y2 4ai3s3k9hflj5ddqnq uw?

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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 cer)fb6 qdpr k1q5tified 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 -j1-u-ierd)gfsr n4 ja half-life of 10 min. What fraction of the sample is left after-1 i rurjjn fd-4-s)ge 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 radioactive iodine-137 is 8.0 days. How many iodine ,yxby7 7chj 89/nf o/c/kwaw4 tv(fht nuclei are necessary to produce anv(7// yf f8/ wkjo9w7cn4,caxh yttbh 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 angfn u:d(/jl8olh wwx3bh1/f+ initial activity of l(/hh:luj38w/x d+ gnw 1bfof$0.24 \; Ci$. 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 ofel)6sq- -rusi 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. Tsl sri--uq)6 ehus 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 takqx*mbe p0 /8ppe $4.0 \times 10^{20} \; atoms$ 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 takezla1ag7+ae98ft sv + n 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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