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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 vv p 6wrddkw: 6n/j77cthe 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 ; z ip05ii/sepis

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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 ok9 yys zh0,c(1kqf0 i3(ukm isf

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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 ijxvosx 3h1oe) rt4+0b3 d fklu9-z, iks 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 number stocd8p 46c xzkx 968ais 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 mao v w;2rhaphh* 0/mwf0cz p2d4ss by A, and its neutron numbe42o02wd*ah p hhw ;pvzc f/0rmr 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 ngkvstaz1j.6y*.i v1number of thezvgta. ksij*16 . ynv1 nucleus

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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 x3.yh3rbpu2 qur2yp6 e 0pfy :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 saiw9g5 t oq7h,/7ta tv4 uy2pntable 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 of neutrons are rezhpg cd1sy,t) ii2z94 ferred to as1 2,h9 t)4izcpzyi dgs

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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 nucle.:hej py/ma(m 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 definee9b fv yu8m7,kd 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 tsj9tx0sh t70 total mass of a stable nucl s x97jtt0ht0seus 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 ne (1z6j;b olk6nucw8c) gy- gstable 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 of a nuc .fk9v2ui3j3 tiko7:6.d 6dwxppqtdrleus 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 n(g 8q: nglqv;qucleon 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 nucleonsj fi8djcjd 8.f 51zj:j i-zw3

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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 yn-)ztyy;du,l 4p0m zforce 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 electrostaoyhch:9)qva . tic force, the nuclear force between adjacent protons in a ) hayoqv9: .chnucleus 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 penetrat pb;vfpk v: g25/rjsao6 d8yz51 sw/dte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratdmu (,66oa2 -n dbtg.qyt4js ee

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetraqs hzy-0cb-5i5 1srdt (h bulw5p+p*c te

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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 as +,dwe*rjon k.

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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 a m1(w-v prs/v75ty piis

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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 to 6pxy-k+onv ; sa

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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 akcv6 b ) 5/nd2z8dpy mumgh-w)tomic 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 ue8*1jwg.c; vu+j s gpfid5(+euqdq- tnd u;4atomic mass numbe*(tuvdgu-4q c8q jp fn+s;gi5 e1+w;u e.dju dr 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 emjphphj)g.u, a;v j j bd65m8g;itted from an unstable nucleus, the atomic number of th)djphjjbh 6 gmu;pv.j8 5, ;gae 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 representiy d hornnc83/wf7 z.8s

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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 k* ,1jdvva h6sas 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 fromsf88,f3n8(d ofnf(aey h 2wwhy2r*o d 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 most masqei p5, 1:f omjgr: hy5r:gyw1s?

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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 i gfju0w 2os /kus43k:nn addition to electric chargenf uk/ugkj ss032o4w:, 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 radilq vlfb,l0s4((q9x zooactive 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 useda.q(pz3h ;rgdsq:d0o . This nucleus emits a single beta pargh(3 dsq0z;qd :aop.rticle when 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 particleszx3/zer27iu0 bw uswz t +b nk9*v-,ys 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 use 5cc;x q:1icol e;0ir/d+abqd ,rp9nvs 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 chambeedl3e-og 2ll6 rs 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 mas,k4h u1w.+tbvz*1 nwhsgcku 5wq*;i ac oa a60s number of 14 and atomic number 6 has how many protonh+ kawgs n qow1* t,aizk*cv ;bh65wuc0a.u14s?

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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 many neutromrz ;4r0yr as3i3v3 scwl6rj+.t(zsu4rjwr+yu(r ctz3ms3; rv6i.ls3 0z sa 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 arm r9 gq*h dx wy:f,78hr64qls(kj vu:se 20 and 39, respectively. How manuhr4f,lwr*g 87 j mq ysk9s:d6hvx(q:y 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 calcium 39an(6 *a,mtw em are 20 and 39, respectively. How manytmem6 , nwa*a( electrons 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 6k( *hugys1 kip p pp4am1m.5yb;0hy gnumber for calcium 39 are 20 and 39, respectively. Howkphh110*y myp b4mupgap5.; 6k (ysg i 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 /je1a9.y kosuvw pv (2calcium 39 are 20 and 39, respectively. How man29 evou/(sj vwpk1ay. y 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 nuh8*e hdz n;h8pmber of 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 thems6trb6(; ie q.we6lx 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 an isotope of mass numbelf7si1z +xdm4zt3/o+1 kym ajr 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 9cb/ ulsm* .qc$^4He$.

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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 reqg7d oalc27ox/2l s)rs m. n5rouired 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 vioo +hi3g(n 2 :qz6kqthrough alpha decay. Its atomic number is n6+(zqoqhvg2 o n3:iki ow

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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 protov p9opkk1(w2ens and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neuk wop2pv k9e1(trons, 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 na k5b;yr:k o0aucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 5 ;a0:ra oykbk14.003074 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 n6+e:qwsj;1) s bqbpn cumber 6 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 after 100 -bzkp ge)p(q)years?q )-pzgkpe()b

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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 half-lif .a:kgq81 dfrpe is 247 yeaf qdk8p a:rg.1rs?

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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 certified at vw 6im/4b3j xr$10 \; \mu Ci$ 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 sample is t(8zfu0f.ksytp a( onqr+16n lef rf1ytfq806(o(n+ z .ntsuapkt after 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 ma/5 tgh9wumwy+ny iodine nuclei are necessary to produce an w9t uhm5ywg+/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 h )u/reb:sh 7ttas an initial activity of sbe/) h:7 turt$0.24 \; Ci$. 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 cotl;p/07z qihgz *j g8arbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a gi;0 ogtqz7pl*gh/ j8iz ven 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 take ne6ukhr4iue.; t 02qi$4.0 \times 10^{20} \; atoms$ 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 q7t oy pa6l.5yt+5bz3p xw2 th$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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