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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 hask3p7y5+mbmcfikiqp4v3n1l .;z6g ux 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 ir26uq j lv.(w))krwszs

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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 ofgbbzr-w4xw .m4 qc) eiv7 5t3h

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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 7 tacn1,6st nvis 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 numbe8fj l6fmxxmy5,s pu24.:tnpx r 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 number is given by Z, its atomic mass by A, and its neutr n- cqb67rsvm4on number by N, which os-4 v6 mbn7qrcf 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 unstab1stc qpt *q*k +xl- vw3r: g;zn9lyj)(x:vjsole nucleus, the atomic mass number of the nu3::x )*1 s ; nqvgw* -+vq9ttjkyxc oslzjr(lpcleus

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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 istcwra;mw y2g*(pj05w ,rkbd 7

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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 th8icw vtti64dg5a (( xie size 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 number but with di;qbf0uwl8dr.u n *v /ifferent numbers of neutrons are referrlb ;0ru/*8vu.indfw qed 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 nuclec z+h g9xlj1 4rt4sek/i 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 4gj0u ,fwog o.m4f bm9as

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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, the totvxwu- l-7em 6bhlx;/te ( ltv5al mass of a stable nucleus is am/w ve vll-t7-t;ble(6 x 5huxlways

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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 nuclelj/unro)h*ktvz 6 6x6us, 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 i m-r f9hnmm5y ue:6if9s 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 per4:b3yj:x4 hic rpxi e- 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 nucle0 :tb67 tl6h kyxx45qmxv+eex on

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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 thek:)9qje ;rduifs2wx * 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 between adjacent pro6 /0weyg8bqzdb xo; ./xlsb7ktons in a nu 86;os y dbwx.b7z/x/klgqb0ecleus 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 penet2ikb2)wye/ k;sz-x pzrate

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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 r1yy-dhxo g)po53to,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 penetg n pxu5/pe0ui1ct2d 6rate

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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 g67fdzrw 9x+lknown 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 kno8 ssc m*gg:ly.wn 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 tb7j.pz20j+ ev k. b/m ycnaz6jo 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 u+t exb dgdwn(23e)p9an 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 from an unstable njk7,dqs/ cj( qucleus, the atomic mass numberd j,(ckq s/q7j of 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 nuc *b0++gonlays leus, the atomic number of the bsn+al0+gyo * 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 representsbz*l4 5c)qdnf9d: jyvgn*gg -

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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 s0 *9g( hkh -4jpacisa ex;la5a 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 nuy*)ijyq:xs d) 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 mass*jq/v4a k:i* i/t hcpg?

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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 addition +84n cjftvtif4nw8u8to electric charge, energytcwu v it+n4488 8jnff, 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 pg lo3 0*ndhg;half-life of 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. Thpf bx8(oc9 56x *,zfitrgkd-h is nucleus emits a single beta particle when it decays. When this happens, the resulxf,6*r8hb 9 (dikp5t-fczogx ting 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 thatd 4 pb8hlf9+d q,v-fil uses a magnetic 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 uuc1v 1kt tuahcjsaz)1.h 2keew: .f)0ses liquid 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 rel-*v+y1o6ua 3ki p7rw (ga;3cspfunx placed 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 hnk,nyo 8 u;nu7ow many protonn 8ku7,uo ;ynns?

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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 kds z*, oyyoylk+: :;nhas how many neutronsyk*z yd so:y +l,n;ko:?

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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, respective suzli+a/11k9upm,gc5e ll zc51i,i hly. How many nml1 5i/z+ciua ,g1lui 1esz5 c,h9l pkucleons 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 calcium 39 are 20 andhc8se (kbm/0l 39, respectively. How many electrons are in one atom?e h lbmks8c0/(

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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, respectivels6o: o5 ,argjry. How many protons a js,gra56o o:rre 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 nutyf9xl;rp edsb k4)m* *1ne+l mber for calcium 39 are 20 and 39, respectively. How many neutrons are in onelmy )kt; +r9esnfd*px 4lb*e 1 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 electrons6jetj8 jo av/.kmq:dou5 9b9g 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 nucleus))ajvz.:nkl c ?

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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 numb-ya9 3uqh0gdcm jlv(m 3bib40er 15 has an 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 energy ofmzt1iuu ;tf.2 $^4He$.

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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 pr6 lp+t.f*jvzt: ex;qu+ou z-q oton 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. Its ato2q+)q bb)m w6nupvhl9mic number is nopn 92bmv hqwbl+)u6q)w

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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 alphx gg,crldu(7y9 uns(x26-p v fa decay, what are gr6 x ,(9n-cvu2gysu7pd(f xlthe number 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 beta de+m9 nm 2oab8n9)lzruncay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.09 u2oma rlb8n n9znm+)03074 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 us2)k lbl 6w9sw3 r1z 01hcaiwtndergoes $b-$ 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 4fd111 lq1/i:daldrlp+e 4 p*z,ws br t5 years, how much will be left after 100 years?1,*1:p ll d r41rsl dwi 1ebpaf/q+tzd

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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; zwddd7e1p7reapi d 3 -9v6ur its half-life is 247 y-raerep6;up d7zd i1 3vd7wd 9ears?

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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 certi)u vc wug 6e)wzc+bl8k-)7dw afied 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 10 min. What fraction of the s(xc/ bla vmny6 q9w:-sample is left after 9lm:xs (wy/- naqvc6b 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 izc+bp0i* 3s lpg8ra -nuclei are necessarya3lp- +sg8z icr0pi*b 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 mhlg8 4 2f0puc5whssnna :e- 8yho8 l,days has an initial activity of lpgh: ,8 y5 -o2whchu 4sm0l8a n8nfse$0.24 \; Ci$. 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 of a wooden casket from bzgoe8))hx-os:5lv w an ancient burial sib8-os x:)5lgwzvo e)hte 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 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 og 0gkxzuv*/1h oc-9pke $4.0 \times 10^{20} \; atoms$ 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 tak/8 d5 egoxf.tp5 (dpbu2 apk.gjy0*vu e 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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