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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 particles h2fyg 2f e9l(ch 3k ltv5/nz*:ql ;xnyias 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 is/vewm/89tk0n d b.w df4)yqb67lhqlx

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conp0;gbl6yyipq vy0c(, .0 glxmsists 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 numbi/m*c+1x)ylv8in u-xo(c rk jer 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 xzzfpuacn*312- r/wu 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 by4 kx*ec0d5xq vb foy6x /zz-2pn 3qdz 8:nob-g Z, its atomic mass by A, and its neutron number by N, which of the 0dv64q2bex-5 g*dzqxb:- o3z/8 nc f k xzpyonfollowing 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 emz wqwc5m *jm7;itted from an unstable nucleus, the atomic mass number of the nucl 7;mmzwwqc 5*jeus

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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 ix5zy 06mubvz .m20nue s

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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 nucla u,xtxr 10)7f( pn9hr(ge9d abmzir*eus 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 numbers of nexm-hph +at g,2k5hfa9utrons are refetg5+aa,9 xpkf h-2hhmrred 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 ha40l( z5o gd8ax3 yaomtve 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 defined ,ao hvnay epe s:0e8rur71; pe+f6(reas

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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 a-t14uy 4jkle its separate protons and neutrons, the total mass of ak4 ytu-4ej1a l stable 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 stable nucleus, energyp8o-mszb mabo( n227 e 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 ci;(y d( u8t70bmnpp lcontributed 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 peo7 8g1 p)aj4me o04hwzw y7sxda 5ai*gr 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 nucleon)au,7-odj i zm-jjx/x

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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 th 4tnr2v5e(out)ka ws.e 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 force, thb)ops4 j 6. 7etj*rjpje nuclear force between adjacent protons int64pjbo7 )er psj*jj . a 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 penetraqf acr;r+ib3x ,us q lg)-x8e0c8rm2ite

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrai +h4n2 ;lp2,u*rbdk x tb.daite

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratq2t u6swjc5 ,mgndobna)i7 +;e

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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 q7qy -9x zygf(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 ao 1 w fc:4p614)zi 1xoeexhkvns

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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 attractedei 8chnp+q r)0 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 0lpkyr -17pjsequal 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, t4 x2hlrqq8k;u,fzqowuy*u; 0v5 d p6s he atomic mass number od kvfwz4 6 u2qyh,*u5l0ou;s; p8xrqqf 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 from an .i.4yuvh0d dqunstable nucleus, the atomic number of th udh4i.0.v dqye 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 repreyx ,ez( 2/ gluxl9 +;omiy:mmhsents

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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 followiuy. /g 3/m i)ndeo;ed,-betah ng is most 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 /;k rh l;qmq2memitted from an 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 the zq)rpyl6(7)g18.vzp p vhr o omost 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 radior- 0eov rpn8x+active decay, what value is conserved in addition to electric charge, energy, and mo0r-n +x prev8omentum?

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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 )e-f ro/-c: jhtkg *inzg2rl6it 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 a single bnxpu9 + g,.tvtz xcx12eta particle when it decays. When this happens, the rest,2.ucv xp1x+xg tz9nulting 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 mau7aat9xt+ujq 4s) *b )hrk0fngnetic 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 liquid2.8zte hwr r1o.82ntrd97go kc6axv u 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 replah6jst62s/ eprkn*+ q:;gu 3c;q l rbicced 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:h ) b;ajt*xl4hrru p2 14 and atomic number 6 has how many proton;jr4prl2) ha:x buth* s?

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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 o,nm-dx c7qi ni86ld0 tf 14 and atomic number 6 has how many neutroc6ln xd-0tqi imdn7, 8ns?

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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 39,1b.ol4 tvgi j3 respectively. How many nucleons av3iglj4 otb1 .re 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 and 39, respec(swve oc/.bxmm, 4f (gtively. How many electrons arem( /m,.vge x( 4wsfcob 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, respectively. .xdk)0t,-)lu w uviqv H)q .dvu u0w)x-t,ivk low many 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 and 3clzpxfs ik/.3)- 3bkv9, respectively. How ma x-icks3 )fzbk. l/p3vny neutrons 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 o*nf3p r czj35uf 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 theyi4+ mh:horkckqk(. v4)q p1b 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 an5m ijzenz.3s * 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 wlx;0soy l.l7energy 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 requfgken4z n5+ bpo0m(;wired 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 throug1ez:vv gsxm 3e/ oqn(.h alpha decay. Its atomic number is nowng(:13/ omvz e. exvqs

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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 n (sca36 uichwp42p,ef. cug:j ucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the d ci4p,e cjh26 w: a3sgpfc.u(uaughter 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 nitrog jub)vjj6zfwi29 b; hloy ;(a.en-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u jj(bw zuvf.jl ;i);9 6aoyb 2hand 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 tohxe -*tbv520 gfk j xm(k8rmno71l; 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 much wi 2zkz(1vp-azv)r q uhop1rp;;ll be left after 100 years?pvr za -po)qz2vr1(;;z1kuhp

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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 halfhq+)yr e.s1 xca +/qgm-life is 247 yeyhm1sc x +q.)rae /gq+ars?

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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 0x5hv6 o;tbr / 8krguu:puzk0ified 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 hawpi w7y6h.ea 3lf-life of 10 min. What fraction of the sample is left after 40.7aiywhep 36w 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. Hpu5k erx jg;)-l.6 xttow many iodine nuclei are necessary tou exgpj 6t.;k )rx5l-t 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 has an initial actvif ns /)fymqgv:- :8zivity of :nmz8q:igfy/ fv -s)v $0.24 \; Ci$. 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 t.h9xhv:( bre7mch2 1 yty8fn a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whey :tm(n 8feh9x7cvhty 2b.h1rreas 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 ta 2pjzl *t9eyh n:b*;egke $4.0 \times 10^{20} \; atoms$ 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 a6)oz l. .:umy(mf idzybbzri8dw+f j2o5 u 5:h $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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