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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 least mass?4dqf2il6we ; p

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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 is3nxexj(f zh,dd2q.xc/h 5t ed(b d5v:

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus0;r vk/lou ; 0t vozki9mc1x4qo6rb1p 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 number ofv)0g8 ya6n fia

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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 b pl )eko)ad,lgr7l-m 1y 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 mass by A, and its neutrx /:zl)rn su(tr*n1xmub0z- ton number by N, which of the folloz*b n/l )1(truxn-tx r u:zm0swing 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 unstablv et +ls(ak1d(e nucleus, the atomic mass number of the nk (+ sv1letd(aucleus

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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 ato:wap r+ g :lte(p624rx i*hicbm 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 f:2m)*do1yz lo:gzr scud c53 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 number but with different numbers of2p;rpncj txwftdt1 +c.cv)5 ( neutrons are referred tp (2v;f1. )t+tdp rnj cwcc5txo 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 element3 5 l(y slgus(nspvf2n g5bt 41:2klny 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 defined +50fejq(ws weso 6 l(xas

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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 im)x ,h4w*nalw jy a29ets separate protons and neutrons, the total mass of a stable nuclee2n 9h4,m)axa w*jlwy us 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 7 n5f8: uitjn )r*g6;fbbxu gtstable 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 ofes 4akja gqbr893(uq- a nucleus 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 nucl26 l-6cwq l tlhm:yb g-:xed7ieon 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 pe wdyye4,)ot5 cr 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 3qh:g6f m6q;qx .h9mj.oxa urthe 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, the nuclear force betwc6g3,zqlw;n-w5bu wx) nhy-feen adjacent protons in a nucleus hwc)zqblxu w,fyw-g; n635 -n 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 penetratet/2,nn-:)cd0 msw i :b7k:q wonut sgs

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrbg:arx- q n1(rate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratem y;hry1hp *v0

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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 known a dby pz1d ,,ii+bzxh r0.uek1lp6zu08j( d9vcs

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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 knrru/z8gk,6 xmvk 2r(sown 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 wifxcf -+dgku pf4)g9-ne)(bc9r sfc : lll be attracted 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 a- aj dujr7*hf0n atomic 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 yvj6ow t0r(8f/tp ;mk from an unstable nucleus, the atomic mass number o/w8(fr tyvjo6m0;pt kf 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 unstable nucleus, the atomic numbm.( ;8kydax(me5e mj ber of the nuea;j(8kby mm(e.5dmx cleus

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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 rnta9agy.q1 dv4 9k-ez epresents

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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 ( t *wwtpp+dazd,.l sl7qpj67same 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 nucl4jzec2t 97rg-tf f( nceus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has they t6p+3l. y5i,sgfl(kl: k+ned cd-ao most 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 is conserved in lnt+ )dk:2o nmuvwp3m6 es9v* addition to electric charge, energy, and ) k*m n:epvnul m3+ v6st92wdomomentum?

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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 co(a:-6s fqisas 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 nuclelpg7f 7npa3 s8us emits a single beta particle when it decays. When this happens, the lp7sfap3 87ng 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 mat*m0m6 2lo (cxc--2j1tlgtqkbi ix u5 gnetic 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 liquid hydbh;n1obux- h +rogen 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 tl0t*get)9yz replaced 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;j0 nxv,j8o/qz 3nk z -5f;mwcanb)uw how many protons nbfunzown ;,cj0- kjwv;a/5xz8) 3qm?

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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 h )s:,y1.leff,vz 5 mybz u)cwmow many neutrof5y)zl m,fsmvz,be :u.)cyw1 ns?

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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, respectively. H 6:keb0 ss ogpw0k ied:xz+m86ow many nucleonsoe:pzd s :sxe60m+i kwkb g608 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 ca9fl8 kwbx(l5 ,4 yuv ixw2)zaflcium 39 are 20 and 39, respectively. How many electronswlfi)5f, x9ab2 kvzwx( uly 48 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, resp)oc *v3o7gc(11d/ w ymm r+coypuxvo4ectively. How many protons are in op*c+7o(1)wgcoy1 rdcom v yxuvmo3 4/ne 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, respect0p/ u5atc ix4zively. Hoti/px zu0ca 54w many 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 of protons, neutrons, and electronsm *gh3 wj**cmo 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 carbon-14 n*nj/cp)g nt3 cnxlhsk 1d6:j; ucleus?

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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 masss4rp;rn4nh l u6 6h5yg 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 ener8ums n+av 2w9v/av ,ubgy 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 one p usg ec-,dy:o 3 xf8szmws:3c+roton 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 87c upoo,s;zn (zab 8v(8 goes through alpha decay. Its atomic number is n(buo v c 7n(oasp8,z;zow

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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 dec* nxqp e//va n9(wjmq9ay, what are the numw/9 (nmqx j9vn*a /qepber of protons and 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* vv)b8fo zc8e beta decay. How much energy (in MeV) is r)f ec*ov8zb8v eleased 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 6 u+- 7 a fwbcihzt7b.x6endergoes $b-$ 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 is9tk6 ivy.6wu,es ngsx c31o3k 45 years, how much will be left after 100 years6gs613 syktc., 9noxw 3uk eiv?

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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 yeamsa p3q1c: g*br if its half-life is 247 a:sc m13*pgbqyears?

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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 certifie(w 7+gmk2gxk ld 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-l drucv/,fo z(2e/dg 1*ulrkj0ife of 10 min. What fraction of the sample is left after1udvk c(g/d fjzr0*e,l u2/ or 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-1p,w5j n753onhh sczyd h663ki37 is 8.0 days. How many iodine nuclei are6 hyk o3 55niph3wdnj7zch6,s necessary 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-l 8rz-wl iyn/76j4ok uuife of 3.0 days has an initial activity of uk/7 z-yji6rln 8u w4o$0.24 \; Ci$. 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 measurcj*l*y.pl :v7q sby)ded in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, *cj7)l:. y* ybqlpvsd 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 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 taa6m18d..bgsvv;s3o6gn us yg0 p :zpske $4.0 \times 10^{20} \; atoms$ 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 a 63)vxv9 et-*c zdhpig $4.5 \; Ci$ 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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