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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: 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.+r;k4pu. ejwf3jruqv 8q0pv 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 iw : zs6(y 4od3:nvjjgas

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus c8y/yqr 6umbg v;9v; ekonsists 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 nu cn1z99rw :efumber 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 dy zm2nd kfj;f77lqa 80etermined 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 atomic mas-+ma(wjqd 6w7,unk gvs by A, and its neutron numbwn+u,ja6d-vkq (gw7mer 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 an unstable nucleus, the atomic mass numxok3dupb+5 ) a31ipj dber of the nucleub3ju5a opid dx1pk+3) 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 in an atomtqb-vx :xe)klj)sy l6;kd/2w 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 nucle 2hr8 vn v-m j(zdwryg,nu2z-+us 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 wel0g-w 0g; xnqith different numbers of neutrons are referred to xgwg 0e;0lqn- 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 elemenixk13gx+. xc8.rgf u o8ye dq4t have 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 9jg1ogxycg;(iw6-q2u oeoodbi ); b2 defined 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, ,*ocqw( y c1quthe total mass of a stable nucleus is alwayqy w1uo(*,cq cs

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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, energy ui/ le +nkqya; 3mvs13is

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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 contribute, zn((n-j:-fon:*alaw/pyj ;jtco 23l hj zgdd 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 dob 3admjw/7 xh7 9wi5h; 7aponucleon 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 nucleonputup - :dg,f6

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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 force isbf,dt bf+-a;o 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 electrostatir4 se*)ewmpdl(g gn47nmrb. 2c force, the nuclear force between adjacent protons n.(erprel n4bmwsd* gm)24 7 gin 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 penetratklfg+e uuv7jx (o4.-he

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrahixy5,3xhg5d0 wmp xq pso;31te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratu2txbg (f9vfm1 di 3;ze

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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 also77ebskw54koch i r(e7r8w j d2 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 kno qfppunju5ky) (lj:6 f ,*7uuswn 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 attrac-,e7 jri pfxz vx2q/ce ji;;7ited 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 aog7c1y ztj*7 +d0jbs ttomic 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, the atomic mao b6r,p7.umxm zn eys5:jr)2 ass number of the nuclesjp2 xrr.b ,m6u7az )ymoe5n :us

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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 nucleus,wr(ds+:94 dib/s vyae the atomic number of bivd es d 9s:r(/+w4aythe 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 represekbi v .sqtb43g1ck0;lnts

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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 nl 71xaej5rk0jer2 q9p early 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 nucle+/+.tg piwu( 7w azhax-bd.cpus,

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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 m*t m3vjf(k d)tzy/7ye: ujch(ost 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, what value i4 mlk2)ov0of ks conserved in addition to electric charge, energy, a vkmf20olk4)o nd 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 of0 hn+dgt y+b7 p5yd0blz6 gz8s 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 nuclep0zya7 1 zi +u.8gmngs f.qu8;bh z:vhus emits a single beta particle whga.nz qm ;f vizz8sy8.b10h pu+7 g:uhen it decays. 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 curve charged parti7rqw;t9z( jcpcles 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 hydrogent igk*l ku7jd fuc-7re7:u9(85sdc gm 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(e-tfd(ndzg ncum f 7wg+) +.h 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 m)uc*lczc c3yuq17 :adsphedu.0; 9 anumber 6 has how many protons?u u hp0z*c :l91 ds7amdcu3)ce;y. cqa

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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 atomic number 6 has how mq6s1 4ic0) gyvwbjo 8 m2hyi u-k:r5mgany neutrons?wi)my:-sh 1iou2mr vg 50g8kj6yc4 qb

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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 mb)c-4qvf3u t1g xzm5yass number for calcium 39 are 20 and 39, respectively. How man-1qvx5)fy3uc 4tm zbgy 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 mass number for ccp5 05z2ra:b vupf01pm+wasg wku6-kalcium 39 are 20 and 39, respectively. How many electrons are in on0z2u:rs vpubpf5+0a1mk- p5w w6cgkae 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 o)lyuh3/oc6t are 20 and 39, respectively. How manyct)ly/ o 6ohu3 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 calc6 wp(akwc,-jr ium 39 are 20 and 39, respectively. How many neutrons a,j (wwkra-cp 6re 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 electro/t1d e4w5anu.qo toq( ns 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 ccuy;h9hd0lw - zy +ud-arbon-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 isotga0d;vl qjb87v- by*,4 wvvl sope 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 of 4wo :m(ty pd/z$^4He$.

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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 7q40jbh/teqi 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 a.avb03 cf +q: vd 4sf:k*gzwrthrough alpha decay. Its atomic number is nv:s*wfa0r+:b d z3.gf4q kcvaow

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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.u*58orz/ pfnd If it undergoes alpha decay, what are the number of protons and neutrons, respectively, / od8f*npz r5uin 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 tow6pnfs3b e/vn7 .fky( a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is releas3 b y7 kfsenwp.(v6/fned 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 .f1zy0 hu (sfn6 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 will be left afteez3l)orb8guto4puz5 0+2tj 8e j2u nfr 100 yeartbun eozgo8uej0z23+p4rftujl 25 8)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 decay this year if its halfgy,t*1t v- ,meh fch3e-life is 247 years?ev,-ym ,1hte f3*tghc

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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 certiz- tnf7-2o lnlfied 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 hpj)up:n/z.wi; p)ncq 40ed09 b wqjehalf-life of 10 min. What fraction of the sample is left e0/) :ju40qh)pbeiw zp; jnncq .pd9wafter 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 man,b o(iu2 kss6sx1)/tqzud rlw2 alf71y iodine nuclei are necessary to produce a a2i ukzstllq,rs1f u) s 1wd7x6o2/b(n 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 hgc0dgoyhr.)1twh:* y c.in( k alf-life of 3.0 days has an initial activity of .kgrhh *dc0c:(y1o w.itgyn)$0.24 \; Ci$. 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 piwn)8osq9roe7h. xrq y8/en,(n x)xj)5b d vkiece 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 9q, 8vhrsn)5n e)bxex wj q)rxyi odk/ 8.(n7ofrom 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 take1 zez+ukaj a)-)fsl* j $4.0 \times 10^{20} \; atoms$ 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 tak5oqyii5.4w.r f xr,peor vng2vd7 ;/ oe 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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