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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 has the least mazuc(v5tose- ngjyr.v + u6p3:w3eki,ss?

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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 isac-+ h ;ux+fwq4p2 tuc1h* voh

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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 ok cme35u3d/ aof

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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 numb i p5-3jgz2( jsjnrc.aer 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 the number)5jfbkbtu(5 d i mb hb)xo vw/)kho8:5 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 at4+kevs4g ic-a.d 9 gcep24 /vpz)h. bbimdc (domic mass by A, and its neutron number by N, which+s) zv9v.mh4 bcb4pdg-4g.d eaeid p2ic/ (ck 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 unp 3 vn+wsnrks:; r, rmzsui(p0q 5b3g4:thk-istable nucleus, the atomic mass number of the nb+0 mu ;t:shris g3kv( k4pn53r wqzs-,i r:pnucleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protonsy qn /(:r9higyaux)yc 9b;u6r in an atom 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 ncf:c 0m+u5t -csl,fqqu4h d 5stable 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 differenu urb5qs u8i1h(+e)b dt numbers of neutrons are refe) uq5(iu 8ersbhdb1 u+rred 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 nuclei wgovtyle0wunm u3p 7 sa:9 j:74jpep;6ith

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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 de r q)p/w:fw(lafined 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, the tota:f+p 47hte6yy6ylhnv 4x 1efxl mass of a stable nucleus 14:ex6t7 +hfyfnl v64xyye p his 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, energy p,*e rs 93idud) 3mzowis

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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 c4)vkbbm ; mrsuld7 le7x k7/q0ontributed 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 nucleo4m gq n4:uv w,4wvh8 pt5xrx+on 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 pert3 y(nh (jfxg+jb4sh+ 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 the nuclear force;y1 5)0.w,h bb iyi nzts.kggl 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 electrostr+ e-6kvl3xzgatic force, the nuclear force between adjacent protons in a nucleus is v +zeg-xk36lr

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetr s7 mqrzh68:f6c/tmu0,dmqf wate

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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 jkab,h6f.s(b 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 penetrateeod *i.i-q( hv

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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 olax 01ud/,fe-op*o/k2 c s sfknown 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 knownnr1 is) d(g gu/n0yqt* 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 /0e ezm-n bqg6 (nk;kzbe 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 an atomic mass equp h/zt5lmr;d3al 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 adgiw:yc)zk0 jg4, g6vtomic mass number of tgzd)ig vgc0,6yj:w4 k he 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 emittedjku1 c lk8amzb0+3rz6 from an unstable nucleus, the atomic number of the nuc1+jrucakm 63l8 z z0kbleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - MYds,sf04pmcn*zs nf .. - Ma) x 931.5 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 gamma rhlf)ij4 .y/l ejt:c :iay?

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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 unstablgsx /bi/ud wwr90y2ahnl3e *4e 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 mos s7 1:)af7 z0gaqr vyefxs2yb1t 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 conservey 8eb0udm ,i frq:+nj3c2zyx,d in addition to electric char:fcj8mdu0r,2b3i ,n+ qze xyy ge, 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 substance asg +;l/c(c hbs; gxopz7 y;kv9p 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 nucleus emits a singlfke3 b9 zg4k8we beta particle when it decays. When bw3z9k84fek g 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 uq 9khgal9z*qw5c 7 y0a jy-)qjses 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 usenvwh u 8a7h 4f6l/8zla4 :bjzzs 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 replaced by bubble chambers br6dbyp 2rcgqy0 q l*mjt 1am*5.a(q8jecause

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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 ofau0v7 pv j.a-1e3yx xz 14 and atomic number 6 has how many protonsy av.1 0x3-jx zveu7ap?

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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 808oc ic1qyduglq e, *number 6 has how many neutrons?qlce80*i8ydcq ou,g 1

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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 z66gzrj twd 8gt2o:2q39 are 20 and 39, respectively. How many nuco 2 6 8gtdqgzjtw2:z6rleons 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 ani (g 1k1u7 8z qjaqt+pyw g5cak*n4)hnd 39, respectively. How many electrons are )an1(qquyn7z1i4g +8h pk cj k aw5*tgin 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 numbolnme2 eu5)s ros 7xla2j53(w: xeq0ber for calcium 39 are 20 and 39, respectively. Homx l 25o(7e: bs50oe 3qawlrnex2)ujsw 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 numbevq x4-,.6r,;ti2cfm vunp6wh) k evy qr for calcium 39 are 20 and 39, respectively. How many neutrons ap .q)htuxy6e,vcnw,mq;rkf -v462 i vre 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 ;vxi0 6f gry 2z.swf 71isr5gqs+ub /tprotons, 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 io/ru uy)iad7 bw/b0i j ,5k.by7xl,j mn 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 1;t 3y0t gj/5-1 lhq*qehgr fwd5 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 enermap. s6x /+tm1kfmx+qgy 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 removeoxe,v7 a7,ywu ymo 5.+ stpch/ 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 thrf+pa47l i31kttrf s o, jr5ya3ough alpha decay. Its atomic number isiy3aaf 4 k3 ,15pljorrt +ft7s 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 y+dp7 5epqs;n and 249 nucleons. If it undergoes alpha decay, what are the number of proton;+yepqsp 5 7dns 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 decay. How mqqij ) t4k.hun8xxx:r0 zgj 1*uch energy (in MeV) is released if carbon-14 has a mass k xgjt8.x0n4uz )1r x:* jqihqof 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 under89cab t.eam3d+4 y(djb+a si xgoes $b-$ 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 after;7kha nn9hz3u 100 years73k9;z hnahun?

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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 probabili6u y/ltjp8.ycs9-wnrgxb i l.95wa a 6ty that an atom will decay this year if its half-life is 247 yearr8axn.y-ilcupjwb 6 twg9al59/ . ys6s?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wax jqjuk8 *(0rdb3 fto;; yx-ecs certified 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 .ou8 xlu8 lgr10c ciux.gi0t; 10 min. What fraction of the sample is left after 40 min?0 x og. c08lutrucx1li.i8u;g

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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 i/e cvxw7zw5r5v1v,w. e,yofm(c5g fds 8.0 days. How many iodine nuclei are neo d,/wc(fwvgv7ew yfc. 5ev51 ,5 mrxzcessary 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 days has an akck l;- 7e v+x.ln(3skr;khysi k2p 8initial activity of s a l .kk7y i;2pshrv8e+(c;3-klnkxk$0.24 \; Ci$. 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 a1a-4bij z xt6c piece 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 from a piece of living wood producj i-ctxaz4b61ed 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 ta8aa(cb s kvfj73zxuw,*ok9a-ke $4.0 \times 10^{20} \; atoms$ 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 khydy yvm01fh;uu,: uo,m6x* 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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